QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#353616#5112. Where Am I?JerryTclAC ✓22ms9492kbC++202.1kb2024-03-14 12:51:412024-03-14 12:51:41

Judging History

你现在查看的是最新测评结果

  • [2024-03-14 12:51:41]
  • 评测
  • 测评结果:AC
  • 用时:22ms
  • 内存:9492kb
  • [2024-03-14 12:51:41]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
struct Walk { vector<int> dis; int x, y; Walk(int s) { dis.reserve(s); }; };
int operator < (const Walk &u, const Walk &v) { return u.dis < v.dis; };
int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n, m; cin >> n >> m; vector<string> mp(m);
    for(int i = 0; i < m; ++i) cin >> mp[i];
    vector<pair<int, int>> q;
    for(int i = 0; i < m; ++i)
        for(int j = 0; j < n; ++j)
            if(mp[i][j] == 'X') q.emplace_back(i, j);
    vector<Walk> walk(n * m, Walk(q.size()));
    const int s = max(n, m), dif = 2 * s + 1;
    vector<vector<int>> dis(dif, vector<int>(dif));
    const auto &value = [&](int x, int y) { return \
        0 <= x && x < m && 0 <= y && y < n ? mp[x][y] : '.'; };
    const int dx[] = {-1, 0, 1, 0}, dy[] = {0, 1, 0, -1};
    int x = s, y = s, d = 0, len = 1, nw = 0;
    for(int k = 0; k < dif * dif; ++k) {
        dis[x][y] = k, x += dx[d], y += dy[d];
        if(++nw == len) nw = 0, len += (d & 1), d = (d + 1) & 3;
    }
    for(int i = 0, id = 0; i < m; ++i)
        for(int j = 0; j < n; ++j, ++id) {
            Walk &wk = walk[id]; wk.x = i, wk.y = j;
            for(const auto [x, y] : q)
                wk.dis.push_back(dis[x - i + s][y - j + s]);
            sort(wk.dis.begin(), wk.dis.end());
        }
    sort(walk.begin(), walk.end());
    vector<int> lcp(n * m);
    for(int i = 1; i < n * m; ++i) {
        const Walk &w0 = walk[i - 1], &w1 = walk[i];
        for(int j = 0;; ++j) if(w0.dis[j] != w1.dis[j])
            { lcp[i] = min(w0.dis[j], w1.dis[j]); break; }
    }
    for(int i = 1; i < n * m; ++i)
        lcp[i - 1] = max(lcp[i - 1], lcp[i]);
    int ret = 0, mx = *max_element(lcp.begin(), lcp.end());
    for(int i = 0; i < n * m; ++i) ret += lcp[i];
    printf("%.9lf\n%d\n", 1.0 * ret / (n * m), mx);
    vector<pair<int, int>> lst;
    for(int i = 0; i < n * m; ++i)
        if(lcp[i] == mx) lst.emplace_back(m - walk[i].x, walk[i].y);
    sort(lst.begin(), lst.end());
    for(const auto [x, y] : lst) printf("(%d,%d) ", y + 1, x);
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3876kb

input:

1 1
X

output:

0.000000000
0
(1,1) 

result:

ok correct!

Test #2:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

2 1
.X

output:

0.000000000
0
(1,1) (2,1) 

result:

ok correct!

Test #3:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

2 1
X.

output:

0.000000000
0
(1,1) (2,1) 

result:

ok correct!

Test #4:

score: 0
Accepted
time: 0ms
memory: 4052kb

input:

1 2
.
X

output:

0.000000000
0
(1,1) (1,2) 

result:

ok correct!

Test #5:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

1 2
X
.

output:

0.000000000
0
(1,1) (1,2) 

result:

ok correct!

Test #6:

score: 0
Accepted
time: 0ms
memory: 4052kb

input:

2 1
XX

output:

3.000000000
3
(1,1) (2,1) 

result:

ok correct!

Test #7:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

3 3
XXX
X.X
XXX

output:

3.111111111
5
(3,1) (3,2) 

result:

ok correct!

Test #8:

score: 0
Accepted
time: 11ms
memory: 9260kb

input:

100 100
..X....X....X....X....X....X....X....X....X....X....X....X....X....X....X....X....X....X....X....X..
....................................................................................................
X............................................................................................

output:

4757.947100000
9704
(50,1) (50,100) 

result:

ok correct!

Test #9:

score: 0
Accepted
time: 2ms
memory: 4300kb

input:

100 100
X...................................................................................................
....................................................................................................
.............................................................................................

output:

19735.319900000
39599
(100,1) (100,2) 

result:

ok correct!

Test #10:

score: 0
Accepted
time: 2ms
memory: 4552kb

input:

100 100
....................................................................................................
....................................................................................................
.............................................................................................

output:

19865.669900000
39500
(100,1) (100,2) 

result:

ok correct!

Test #11:

score: 0
Accepted
time: 11ms
memory: 9136kb

input:

100 100
X...................................................................................................
.X..................................................................................................
..X..........................................................................................

output:

11855.639200000
39302
(100,99) (99,100) 

result:

ok correct!

Test #12:

score: 0
Accepted
time: 15ms
memory: 9400kb

input:

100 100
...................................................................................................X
..................................................................................................X.
.............................................................................................

output:

11854.609800000
39104
(1,99) (2,100) 

result:

ok correct!

Test #13:

score: 0
Accepted
time: 2ms
memory: 4664kb

input:

20 73
...........X........
.X..................
....................
X.....X........X....
......X........X....
....................
....................
.X..................
....................
...........X........
.X..................
X...................
.......X........X...
.X....X........X....
...

output:

50.097945205
80
(7,6) (16,6) (20,12) (7,15) (16,15) (7,24) (16,24) (7,33) (16,33) (7,42) (16,42) (19,46) (12,47) (20,47) (7,51) (16,51) (12,56) (19,56) (7,60) (16,60) (20,65) (20,67) (7,69) (16,69) 

result:

ok correct!

Test #14:

score: 0
Accepted
time: 8ms
memory: 6232kb

input:

65 57
..............X..................................................
.................................................................
.........................................................X.......
........X.........X..............................................
..X.....X........................

output:

100.711201080
742
(1,1) (2,1) 

result:

ok correct!

Test #15:

score: 0
Accepted
time: 1ms
memory: 4316kb

input:

56 59
........................................................
........................................................
........................................................
........................................................
........................................................
X...........

output:

494.497881356
1503
(56,38) (56,39) 

result:

ok correct!

Test #16:

score: 0
Accepted
time: 3ms
memory: 6328kb

input:

46 83
..........X...X.................X.............
..............................X...............
...X..........................................
.....................................X........
...X...........................X...X..........
.X............................................
...............

output:

122.545311682
387
(1,19) (19,32) 

result:

ok correct!

Test #17:

score: 0
Accepted
time: 5ms
memory: 5540kb

input:

51 57
........................X..........................
............................X......................
....................X.............X................
..................................................X
...................................................
.........................X...........

output:

103.487444100
334
(10,57) (11,57) 

result:

ok correct!

Test #18:

score: 0
Accepted
time: 3ms
memory: 5016kb

input:

64 91
................................................................
................................................................
................................................................
................................................................
.....................................

output:

480.572973901
1215
(64,71) (63,91) 

result:

ok correct!

Test #19:

score: 0
Accepted
time: 7ms
memory: 5688kb

input:

75 40
.............................................X............X................
....................X..............................X.......................
...........................................X...........X...........X.......
...........................................X.....X......X............

output:

79.149333333
319
(1,39) (1,40) 

result:

ok correct!

Test #20:

score: 0
Accepted
time: 7ms
memory: 5352kb

input:

97 54
.............X...................................................................................
..................................X..............................................................
....X............................................................................................
...

output:

383.808323788
1084
(93,9) (51,51) 

result:

ok correct!

Test #21:

score: 0
Accepted
time: 6ms
memory: 5248kb

input:

89 49
...............X...........X.............................................................
.............................................................X..X...........X............
.................................X.......................................................
...........................

output:

161.070167393
520
(89,1) (2,41) 

result:

ok correct!

Test #22:

score: 0
Accepted
time: 5ms
memory: 5084kb

input:

80 55
.............................................................X..................
................................................................................
.................................................................XX.............
..............................................X.......

output:

176.083181818
611
(80,2) (79,37) 

result:

ok correct!

Test #23:

score: 0
Accepted
time: 2ms
memory: 4416kb

input:

61 59
...........X.................................................
.............................................................
.......................................................X.....
.............................................................
...............................X.................

output:

291.706029453
860
(1,1) (1,50) 

result:

ok correct!

Test #24:

score: 0
Accepted
time: 4ms
memory: 5080kb

input:

48 74
....X.X.X.......................................
...............X.....X...X......................
..........................................X.....
................................................
................................................
.......X........................................
...

output:

152.161880631
512
(48,9) (48,67) 

result:

ok correct!

Test #25:

score: 0
Accepted
time: 18ms
memory: 8936kb

input:

100 96
.................................................................X..................................
.............................X......................................................................
..............................................................................................

output:

212.396250000
1031
(1,67) (1,68) 

result:

ok correct!

Test #26:

score: 0
Accepted
time: 9ms
memory: 6000kb

input:

94 84
..............................................................................................
..............................................................................................
..............................................................................................
............

output:

357.121327254
2687
(1,83) (1,84) 

result:

ok correct!

Test #27:

score: 0
Accepted
time: 11ms
memory: 7476kb

input:

86 80
...........................................................X..........X...............
......................................................................................
X.....................................................................................
....................................

output:

225.855523256
975
(84,1) (85,1) 

result:

ok correct!

Test #28:

score: 0
Accepted
time: 9ms
memory: 6300kb

input:

81 57
.X............X..................................................................
.................................................................................
.....................................X.........X.............X...................
...................................................

output:

139.734026424
647
(24,1) (81,4) 

result:

ok correct!

Test #29:

score: 0
Accepted
time: 5ms
memory: 5592kb

input:

65 85
.................................................................
.................................................................
.................................................................
...................X.............................................
.................................

output:

738.974479638
3378
(5,45) (5,56) 

result:

ok correct!

Test #30:

score: 0
Accepted
time: 2ms
memory: 4832kb

input:

76 98
............................................................................
............................................................................
............................................................................
..................................................................

output:

1550.390977444
4192
(76,34) (76,96) 

result:

ok correct!

Test #31:

score: 0
Accepted
time: 2ms
memory: 4132kb

input:

62 67
..............................................................
..............................................................
.........................X....................................
...................................................X..........
.............................................

output:

648.650216659
2420
(16,1) (1,13) 

result:

ok correct!

Test #32:

score: 0
Accepted
time: 3ms
memory: 6432kb

input:

50 98
..........................................X.......
.................................X...............X
..................................................
..................................................
.............................................X....
..........................................

output:

207.337755102
895
(1,97) (1,98) 

result:

ok correct!

Test #33:

score: 0
Accepted
time: 15ms
memory: 7784kb

input:

74 97
....................X.....................................................
..........................................................................
..........................................................................
................................X.......................................

output:

193.030231262
1078
(74,70) (71,93) 

result:

ok correct!

Test #34:

score: 0
Accepted
time: 0ms
memory: 4064kb

input:

62 77
..............................................................
..............................................................
..............................................................
..............................................................
.............................................

output:

2021.069962296
4937
(46,73) (8,77) 

result:

ok correct!

Test #35:

score: 0
Accepted
time: 4ms
memory: 4912kb

input:

47 74
...............................................
...............................................
...............................................
.....................X.........................
...............................................
............................................X..
.........

output:

142.153824037
673
(1,74) (2,74) 

result:

ok correct!

Test #36:

score: 0
Accepted
time: 5ms
memory: 5804kb

input:

47 71
...........X....X..............................
...............................................
...............................................
...........X...................................
.............................................X.
..X...........XX............X..................
.........

output:

102.814204375
334
(44,4) (47,37) 

result:

ok correct!

Test #37:

score: 0
Accepted
time: 7ms
memory: 5836kb

input:

51 65
.........X..........X..............................
.................................X....X.........X..
................................................X..
...................................................
...................................................
.....................................

output:

81.669984917
314
(1,64) (1,65) 

result:

ok correct!

Test #38:

score: 0
Accepted
time: 2ms
memory: 4692kb

input:

40 93
.......X................................
........................................
........................................
........................................
.X......................................
..................X.....................
........................................
..........

output:

300.307526882
1326
(39,93) (40,93) 

result:

ok correct!

Test #39:

score: 0
Accepted
time: 10ms
memory: 8772kb

input:

87 99
.......................................................................................
.......................................................................................
.......................................................................................
.................................

output:

474.068965517
2063
(1,1) (49,1) 

result:

ok correct!

Test #40:

score: 0
Accepted
time: 1ms
memory: 4080kb

input:

46 94
..............................................
..............................................
..............................................
..............................................
..............................................
..............................................
...............

output:

2555.367483811
5914
(46,1) (46,2) 

result:

ok correct!

Test #41:

score: 0
Accepted
time: 2ms
memory: 4200kb

input:

93 60
.............................................................................................
.............................................................................................
.............................................................................................
...............

output:

2389.200358423
11288
(21,60) (22,60) 

result:

ok correct!

Test #42:

score: 0
Accepted
time: 9ms
memory: 7368kb

input:

98 61
.............................................X................................X...................
...................................................................X.............X................
..................................................................................X................

output:

225.089160254
803
(10,61) (11,61) 

result:

ok correct!

Test #43:

score: 0
Accepted
time: 18ms
memory: 8924kb

input:

94 95
..............................................................................................
.......................................................X......................................
............X................................................X.......................X........
............

output:

213.687569989
941
(33,89) (33,90) 

result:

ok correct!

Test #44:

score: 0
Accepted
time: 8ms
memory: 6076kb

input:

94 72
..............................................................................................
..............................................................................................
..............................................................................................
............

output:

1330.089539007
4671
(60,71) (38,72) 

result:

ok correct!

Test #45:

score: 0
Accepted
time: 4ms
memory: 5040kb

input:

46 44
....X...X..............................X...X..
................................X..X......X...
..............X.........X.....................
......................X...........X...........
......................X.X........X.X...X......
.............X..........X.....................
.X.............

output:

67.354743083
645
(1,1) (2,1) 

result:

ok correct!

Test #46:

score: 0
Accepted
time: 8ms
memory: 6016kb

input:

65 51
.................................................................
.........................X.......................................
........X..............X.........................................
....X...............X............................................
.................................

output:

80.041025641
332
(64,34) (65,34) 

result:

ok correct!

Test #47:

score: 0
Accepted
time: 5ms
memory: 6176kb

input:

51 82
...................................................
...............X...........X.........X.............
..............................X....................
...................................................
...................................................
.......................X.............

output:

100.466044955
360
(49,3) (51,62) 

result:

ok correct!

Test #48:

score: 0
Accepted
time: 5ms
memory: 5312kb

input:

87 60
.......................................................................................
........................................................................X..............
.......................................................................................
.................................

output:

302.789846743
799
(87,29) (87,58) 

result:

ok correct!

Test #49:

score: 0
Accepted
time: 2ms
memory: 4640kb

input:

53 44
...................................X.................
.....................................................
............................X....X...................
...X.................................................
.....................................................
....................X......

output:

150.346912521
930
(52,44) (53,44) 

result:

ok correct!

Test #50:

score: 0
Accepted
time: 9ms
memory: 6748kb

input:

94 97
..............................................................................................
.......................................X......................X...............................
..............................................................................................
............

output:

690.646413687
3826
(1,96) (1,97) 

result:

ok correct!

Test #51:

score: 0
Accepted
time: 5ms
memory: 5140kb

input:

70 68
......................................................................
.....................X...........................X....................
........X...........................X...........................X.....
......................................................................
.............

output:

356.974579832
1620
(23,68) (51,68) 

result:

ok correct!

Test #52:

score: 0
Accepted
time: 4ms
memory: 5368kb

input:

100 91
....................................................................................................
....................................................................................................
..............................................................................................

output:

1705.102197802
4664
(100,44) (100,90) 

result:

ok correct!

Test #53:

score: 0
Accepted
time: 0ms
memory: 4292kb

input:

88 84
........................................................................................
........................................................................................
........................................................................................
..............................

output:

2976.142316017
8305
(68,1) (69,1) 

result:

ok correct!

Test #54:

score: 0
Accepted
time: 2ms
memory: 4460kb

input:

48 44
................................................
................................................
..........X...........X.........................
...X............................................
...........................X....................
.........X......................................
...

output:

140.187973485
466
(8,7) (1,20) 

result:

ok correct!

Test #55:

score: 0
Accepted
time: 13ms
memory: 7132kb

input:

98 60
......................................X.....X.....................................................
......................................X..............................X............................
............X......................................................X...............................

output:

179.279251701
713
(98,56) (98,57) 

result:

ok correct!

Test #56:

score: 0
Accepted
time: 5ms
memory: 5256kb

input:

58 41
...............................X...............X..........
..X..................X....X...............................
..........................................................
.....................X.............................X......
..............................X.................X............

output:

75.129520606
228
(2,1) (49,27) 

result:

ok correct!

Test #57:

score: 0
Accepted
time: 11ms
memory: 6296kb

input:

95 48
....X.......X.......................X..............X........................X...........X......
........X...............................X...............................X......................
........................XX...............................X.....................................
.........

output:

115.940570175
390
(15,48) (79,48) 

result:

ok correct!

Test #58:

score: 0
Accepted
time: 5ms
memory: 5780kb

input:

51 62
...................................................
..............................X.........X..........
................................................X..
.......................X...........................
..............................................X....
.....................................

output:

127.050284630
432
(7,1) (51,6) 

result:

ok correct!

Test #59:

score: 0
Accepted
time: 16ms
memory: 8432kb

input:

86 98
.......X......X.......................................................................
......................................................................................
......................................................................................
....................................

output:

215.500949217
732
(66,70) (68,72) 

result:

ok correct!

Test #60:

score: 0
Accepted
time: 10ms
memory: 6232kb

input:

91 94
...........................................................................................
...........................................................................................
...........................................................................................
.....................

output:

309.110357727
1541
(78,1) (90,8) 

result:

ok correct!

Test #61:

score: 0
Accepted
time: 3ms
memory: 5116kb

input:

74 45
..........................................................................
..........................................................................
....X.............X..........................................X............
.X................X..........................X............X.............

output:

164.878078078
772
(1,7) (1,8) 

result:

ok correct!

Test #62:

score: 0
Accepted
time: 7ms
memory: 6180kb

input:

54 73
.....X.......X........................................
.............X........................................
...............X......................................
................................X.....................
..............................................X.......
......................

output:

106.012937595
560
(1,1) (1,2) 

result:

ok correct!

Test #63:

score: 0
Accepted
time: 10ms
memory: 6728kb

input:

91 56
...........................................................................................
..............................X.............................X..............................
.....................................................................X.....................
.....................

output:

423.714874411
1455
(63,19) (24,20) 

result:

ok correct!

Test #64:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

1 2
X
X

output:

1.000000000
1
(1,1) (1,2) 

result:

ok correct!

Test #65:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

1 3
X
.
.

output:

0.666666667
1
(1,1) (1,2) 

result:

ok correct!

Test #66:

score: 0
Accepted
time: 0ms
memory: 4092kb

input:

1 3
.
X
.

output:

0.666666667
1
(1,1) (1,3) 

result:

ok correct!

Test #67:

score: 0
Accepted
time: 0ms
memory: 3972kb

input:

1 3
X
X
.

output:

0.666666667
1
(1,2) (1,3) 

result:

ok correct!

Test #68:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

1 3
.
.
X

output:

3.333333333
5
(1,2) (1,3) 

result:

ok correct!

Test #69:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

1 3
X
.
X

output:

6.666666667
10
(1,1) (1,3) 

result:

ok correct!

Test #70:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

1 3
.
X
X

output:

0.666666667
1
(1,1) (1,2) 

result:

ok correct!

Test #71:

score: 0
Accepted
time: 0ms
memory: 3968kb

input:

1 3
X
X
X

output:

3.666666667
5
(1,1) (1,2) 

result:

ok correct!

Test #72:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

1 4
X
.
.
.

output:

5.250000000
10
(1,1) (1,2) 

result:

ok correct!

Test #73:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

1 4
.
X
.
.

output:

2.750000000
5
(1,1) (1,4) 

result:

ok correct!

Test #74:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

1 4
X
X
.
.

output:

1.000000000
1
(1,1) (1,2) (1,3) (1,4) 

result:

ok correct!

Test #75:

score: 0
Accepted
time: 0ms
memory: 3748kb

input:

1 4
.
.
X
.

output:

2.750000000
5
(1,3) (1,4) 

result:

ok correct!

Test #76:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

1 4
X
.
X
.

output:

7.500000000
10
(1,2) (1,4) 

result:

ok correct!

Test #77:

score: 0
Accepted
time: 0ms
memory: 4112kb

input:

1 4
.
X
X
.

output:

1.000000000
1
(1,1) (1,2) (1,3) (1,4) 

result:

ok correct!

Test #78:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

1 4
X
X
X
.

output:

2.750000000
5
(1,2) (1,3) 

result:

ok correct!

Test #79:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

1 4
.
.
.
X

output:

10.250000000
18
(1,3) (1,4) 

result:

ok correct!

Test #80:

score: 0
Accepted
time: 0ms
memory: 3908kb

input:

1 4
X
.
.
X

output:

14.000000000
27
(1,1) (1,4) 

result:

ok correct!

Test #81:

score: 0
Accepted
time: 0ms
memory: 3968kb

input:

1 4
.
X
.
X

output:

5.500000000
10
(1,1) (1,3) 

result:

ok correct!

Test #82:

score: 0
Accepted
time: 0ms
memory: 3776kb

input:

1 4
X
X
.
X

output:

2.750000000
5
(1,1) (1,4) 

result:

ok correct!

Test #83:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

1 4
.
.
X
X

output:

3.000000000
5
(1,3) (1,4) 

result:

ok correct!

Test #84:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

1 4
X
.
X
X

output:

2.750000000
5
(1,2) (1,4) 

result:

ok correct!

Test #85:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

1 4
.
X
X
X

output:

2.750000000
5
(1,1) (1,2) 

result:

ok correct!

Test #86:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

1 4
X
X
X
X

output:

6.500000000
10
(1,2) (1,3) 

result:

ok correct!

Test #87:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

2 2
X.
..

output:

3.750000000
7
(2,1) (2,2) 

result:

ok correct!

Test #88:

score: 0
Accepted
time: 0ms
memory: 3908kb

input:

2 2
.X
..

output:

1.250000000
2
(1,1) (1,2) 

result:

ok correct!

Test #89:

score: 0
Accepted
time: 0ms
memory: 3968kb

input:

2 2
XX
..

output:

2.500000000
3
(1,2) (2,2) 

result:

ok correct!

Test #90:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

2 2
..
X.

output:

4.250000000
6
(2,1) (2,2) 

result:

ok correct!

Test #91:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

2 2
X.
X.

output:

3.500000000
6
(2,1) (2,2) 

result:

ok correct!

Test #92:

score: 0
Accepted
time: 0ms
memory: 3872kb

input:

2 2
.X
X.

output:

1.500000000
2
(1,1) (2,2) 

result:

ok correct!

Test #93:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

2 2
XX
X.

output:

1.750000000
3
(1,2) (2,2) 

result:

ok correct!

Test #94:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

2 2
..
.X

output:

2.750000000
4
(1,2) (2,2) 

result:

ok correct!

Test #95:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

2 2
X.
.X

output:

2.500000000
4
(2,1) (1,2) 

result:

ok correct!

Test #96:

score: 0
Accepted
time: 0ms
memory: 3972kb

input:

2 2
.X
.X

output:

1.500000000
2
(1,1) (1,2) 

result:

ok correct!

Test #97:

score: 0
Accepted
time: 0ms
memory: 3840kb

input:

2 2
XX
.X

output:

1.750000000
3
(1,2) (2,2) 

result:

ok correct!

Test #98:

score: 0
Accepted
time: 0ms
memory: 4112kb

input:

2 2
..
XX

output:

3.500000000
4
(1,2) (2,2) 

result:

ok correct!

Test #99:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

2 2
X.
XX

output:

2.250000000
4
(2,1) (1,2) 

result:

ok correct!

Test #100:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

2 2
.X
XX

output:

1.250000000
2
(1,1) (2,2) 

result:

ok correct!

Test #101:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

2 2
XX
XX

output:

2.500000000
3
(1,2) (2,2) 

result:

ok correct!

Test #102:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

3 1
X..

output:

4.666666667
7
(2,1) (3,1) 

result:

ok correct!

Test #103:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

3 1
.X.

output:

2.000000000
3
(1,1) (3,1) 

result:

ok correct!

Test #104:

score: 0
Accepted
time: 0ms
memory: 3968kb

input:

3 1
XX.

output:

2.000000000
3
(1,1) (2,1) 

result:

ok correct!

Test #105:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

3 1
..X

output:

2.000000000
3
(1,1) (2,1) 

result:

ok correct!

Test #106:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

3 1
X.X

output:

9.333333333
14
(1,1) (3,1) 

result:

ok correct!

Test #107:

score: 0
Accepted
time: 0ms
memory: 3768kb

input:

3 1
.XX

output:

2.000000000
3
(2,1) (3,1) 

result:

ok correct!

Test #108:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

3 1
XXX

output:

5.666666667
7
(1,1) (2,1) 

result:

ok correct!

Test #109:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

4 1
X...

output:

12.750000000
22
(3,1) (4,1) 

result:

ok correct!

Test #110:

score: 0
Accepted
time: 0ms
memory: 3844kb

input:

4 1
.X..

output:

4.250000000
7
(3,1) (4,1) 

result:

ok correct!

Test #111:

score: 0
Accepted
time: 0ms
memory: 3708kb

input:

4 1
XX..

output:

5.000000000
7
(3,1) (4,1) 

result:

ok correct!

Test #112:

score: 0
Accepted
time: 0ms
memory: 3904kb

input:

4 1
..X.

output:

4.250000000
7
(1,1) (4,1) 

result:

ok correct!

Test #113:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

4 1
X.X.

output:

8.500000000
14
(1,1) (3,1) 

result:

ok correct!

Test #114:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

4 1
.XX.

output:

3.000000000
3
(1,1) (2,1) (3,1) (4,1) 

result:

ok correct!

Test #115:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

4 1
XXX.

output:

4.250000000
7
(1,1) (2,1) 

result:

ok correct!

Test #116:

score: 0
Accepted
time: 0ms
memory: 3704kb

input:

4 1
...X

output:

7.750000000
14
(1,1) (2,1) 

result:

ok correct!

Test #117:

score: 0
Accepted
time: 0ms
memory: 3772kb

input:

4 1
X..X

output:

18.000000000
33
(1,1) (4,1) 

result:

ok correct!

Test #118:

score: 0
Accepted
time: 0ms
memory: 3928kb

input:

4 1
.X.X

output:

10.500000000
14
(2,1) (4,1) 

result:

ok correct!

Test #119:

score: 0
Accepted
time: 0ms
memory: 3760kb

input:

4 1
XX.X

output:

4.250000000
7
(2,1) (4,1) 

result:

ok correct!

Test #120:

score: 0
Accepted
time: 0ms
memory: 4108kb

input:

4 1
..XX

output:

3.000000000
3
(1,1) (2,1) (3,1) (4,1) 

result:

ok correct!

Test #121:

score: 0
Accepted
time: 0ms
memory: 3764kb

input:

4 1
X.XX

output:

4.250000000
7
(1,1) (4,1) 

result:

ok correct!

Test #122:

score: 0
Accepted
time: 0ms
memory: 3904kb

input:

4 1
.XXX

output:

4.250000000
7
(2,1) (3,1) 

result:

ok correct!

Test #123:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

4 1
XXXX

output:

9.500000000
14
(2,1) (3,1) 

result:

ok correct!

Test #124:

score: 0
Accepted
time: 1ms
memory: 3932kb

input:

100 1
X...................................................................................................

output:

13274.590000000
38710
(99,1) (100,1) 

result:

ok correct!

Test #125:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

100 1
...................................................................................................X

output:

13076.630000000
38318
(1,1) (2,1) 

result:

ok correct!

Test #126:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

100 1
..................................................X.................................................

output:

3356.010000000
9751
(1,1) (100,1) 

result:

ok correct!

Test #127:

score: 0
Accepted
time: 0ms
memory: 4236kb

input:

100 1
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

output:

3457.500000000
9950
(50,1) (51,1) 

result:

ok correct!

Test #128:

score: 0
Accepted
time: 1ms
memory: 3968kb

input:

100 1
X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.

output:

3554.940000000
9950
(49,1) (51,1) 

result:

ok correct!

Test #129:

score: 0
Accepted
time: 1ms
memory: 4036kb

input:

100 2
X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.
.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X.X

output:

3451.070000000
9751
(49,1) (51,1) 

result:

ok correct!

Test #130:

score: 0
Accepted
time: 0ms
memory: 4288kb

input:

1 100
X
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

output:

12977.650000000
38122
(1,1) (1,2) 

result:

ok correct!

Test #131:

score: 0
Accepted
time: 0ms
memory: 4288kb

input:

1 100
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
X

output:

13175.610000000
38514
(1,99) (1,100) 

result:

ok correct!

Test #132:

score: 0
Accepted
time: 0ms
memory: 4196kb

input:

1 100
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
X
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

output:

3306.030000000
9653
(1,99) (1,100) 

result:

ok correct!

Test #133:

score: 0
Accepted
time: 1ms
memory: 4096kb

input:

1 100
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X

output:

3406.500000000
9850
(1,50) (1,51) 

result:

ok correct!

Test #134:

score: 0
Accepted
time: 1ms
memory: 3908kb

input:

1 100
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.
X
.

output:

3503.020000000
9850
(1,50) (1,52) 

result:

ok correct!

Test #135:

score: 0
Accepted
time: 0ms
memory: 4152kb

input:

2 100
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
X.
.X
...

output:

3401.110000000
9654
(2,49) (2,51) 

result:

ok correct!

Test #136:

score: 0
Accepted
time: 1ms
memory: 3824kb

input:

10 10
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX
XXXXXXXXXX

output:

58.080000000
95
(5,10) (6,10) 

result:

ok correct!

Test #137:

score: 0
Accepted
time: 6ms
memory: 9148kb

input:

100 100
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
....................................................................................................
.............................................................................................

output:

13878.927500000
38908
(99,1) (100,1) 

result:

ok correct!

Test #138:

score: 0
Accepted
time: 10ms
memory: 9252kb

input:

100 100
....................................................................................................
....................................................................................................
.............................................................................................

output:

14059.272500000
39302
(99,100) (100,100) 

result:

ok correct!

Test #139:

score: 0
Accepted
time: 10ms
memory: 9280kb

input:

100 100
X...................................................................................................
X...................................................................................................
X............................................................................................

output:

14132.282500000
39500
(100,1) (100,2) 

result:

ok correct!

Test #140:

score: 0
Accepted
time: 12ms
memory: 9352kb

input:

100 100
...................................................................................................X
...................................................................................................X
.............................................................................................

output:

13951.432500000
39104
(1,99) (1,100) 

result:

ok correct!

Test #141:

score: 0
Accepted
time: 2ms
memory: 4552kb

input:

100 100
....................................................................................................
....................................................................................................
.............................................................................................

output:

19733.339900000
39302
(99,100) (100,100) 

result:

ok correct!

Test #142:

score: 0
Accepted
time: 0ms
memory: 4244kb

input:

100 100
...................................................................................................X
....................................................................................................
.............................................................................................

output:

19601.009900000
39104
(1,99) (1,100) 

result:

ok correct!

Test #143:

score: 0
Accepted
time: 2ms
memory: 4308kb

input:

100 100
....................................................................................................
....................................................................................................
.............................................................................................

output:

5001.489900000
10098
(99,100) (100,100) 

result:

ok correct!

Test #144:

score: 0
Accepted
time: 1ms
memory: 4132kb

input:

20 20
.XX......XX.....XXXX
..X.....X..X....X...
.....X..............
X..XX.X..XX......XX.
X..........X........
...X..X............X
.X...X..........XXXX
.X...XX..XX....X....
X.X.XX...X.......X.X
XXXXX....X........X.
.X.XX.X..XX...X.X...
X.......X..XXX.....X
.X..X..X.X......X...
.........X....X...X.
...

output:

12.812500000
31
(13,5) (15,18) 

result:

ok correct!

Test #145:

score: 0
Accepted
time: 6ms
memory: 5396kb

input:

50 50
..................................................
..................X...............X...............
..................................................
....X...X........................X........X..X....
.................X................................
..........................................

output:

60.830800000
195
(28,1) (1,35) 

result:

ok correct!

Test #146:

score: 0
Accepted
time: 22ms
memory: 9492kb

input:

100 100
....................................................................................................
....................................................................................................
.............................................................................................

output:

227.534900000
1062
(96,95) (55,100) 

result:

ok correct!

Extra Test:

score: 0
Extra Test Passed