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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#729956#9570. Binary Treeucup-team1264#AC ✓282ms6316kbC++204.0kb2024-11-09 18:06:322024-11-09 18:06:33

Judging History

你现在查看的是最新测评结果

  • [2024-11-09 18:06:33]
  • 评测
  • 测评结果：AC
  • 用时：282ms
  • 内存：6316kb
查看
  • [2024-11-09 18:06:32]
  • 提交

answer

#include<cstdio>
#include<algorithm>
#include<cmath>
#include<cstring>
#include<vector>
using namespace std;

int ask(int x, int y) {
    printf("? %d %d\n", x, y);
    fflush(stdout);
    int tmp;
    scanf("%d", &tmp);
    return tmp;
}

int T, n, root, ls[100005], rs[100005], fa[100005], siz[100005];
int mid;

void dfs1(int x) {
    siz[x] = 1;
    if (ls[x]) {
        dfs1(ls[x]);
        siz[x] += siz[ls[x]];
    }
    if (rs[x]) {
        dfs1(rs[x]);
        siz[x] += siz[rs[x]];
    }
}

void dfs2(int x) {
    if (ls[x]) dfs2(ls[x]);
    if (rs[x]) dfs2(rs[x]);
    if (mid == -1 && siz[x] * 2 >= siz[root]) mid = x;
}

int main() {
    scanf("%d", &T);
    while (T--) {
        scanf("%d", &n);

        for (int i = 1;i <= n;i++) fa[i] = ls[i] = rs[i] = siz[i] = 0;

        for (int i = 1;i <= n;i++) {
            scanf("%d%d", &ls[i], &rs[i]);
            if (ls[i]) fa[ls[i]] = i;
            if (rs[i]) fa[rs[i]] = i;
        }

        for (int i = 1;i <= n;i++) if (!fa[i]) root = i;

        while (1) {
            mid = -1;
            dfs1(root);
            dfs2(root);


            if (siz[root] == 1) break;

            // printf("%d %d\n", root, mid);

            if (!ls[mid] && !rs[mid]) {
                int res = ask(fa[mid], mid);
                root = (res == 0 ? fa[mid] : mid);
                break;
            }
            else if (!ls[mid]) {
                int res = ask(fa[mid], rs[mid]);
                if (res == 0) {
                    if (ls[fa[mid]] == mid) ls[fa[mid]] = 0;
                    else rs[fa[mid]] = 0;
                }
                if (res == 1) {
                    root = mid;
                    break;
                }
                if (res == 2) {
                    root = rs[mid];
                }
            }
            else if (!rs[mid]) {
                int res = ask(fa[mid], ls[mid]);
                if (res == 0) {
                    if (ls[fa[mid]] == mid) ls[fa[mid]] = 0;
                    else rs[fa[mid]] = 0;
                }
                if (res == 1) {
                    root = mid;
                    break;
                }
                if (res == 2) {
                    root = ls[mid];
                }
            }
            else {
                int sl = siz[ls[mid]], sr = siz[rs[mid]];
                int sf = siz[root] - sl - sr - 1;

                if (sf <= sl && sf <= sr) {
                    int res = ask(ls[mid], rs[mid]);
                    if (res == 0) {
                        root = ls[mid];
                    }
                    if (res == 1) {
                        ls[mid] = 0;
                        rs[mid] = 0;
                    }
                    if (res == 2) {
                        root = rs[mid];
                    }
                }
                else if (sl <= sf && sl <= sr) {
                    int res = ask(fa[mid], rs[mid]);
                    if (res == 0) {
                        if (ls[fa[mid]] == mid) ls[fa[mid]] = 0;
                        else rs[fa[mid]] = 0;
                    }
                    if (res == 1) {
                        root = mid;
                        fa[mid] = 0;
                        rs[mid] = 0;
                    }
                    if (res == 2) {
                        root = rs[mid];
                    }
                }
                else {
                    int res = ask(fa[mid], ls[mid]);
                    if (res == 0) {
                        if (ls[fa[mid]] == mid) ls[fa[mid]] = 0;
                        else rs[fa[mid]] = 0;
                    }
                    if (res == 1) {
                        root = mid;
                        fa[mid] = 0;
                        ls[mid] = 0;
                    }
                    if (res == 2) {
                        root = ls[mid];
                    }
                }
            }
        }
        printf("! %d\n", root);
        fflush(stdout);
    }
}
Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 1592kb

input:

2
5
0 0
1 5
2 4
0 0
0 0
1
0
2
0 2
0 0
2

output:

? 3 5
? 2 1
! 2
? 1 2
! 2

result:

ok OK (2 test cases)

Test #2:

score: 0
Accepted
time: 70ms
memory: 1800kb

input:

5555
8
2 0
8 6
0 0
3 0
0 0
7 0
0 0
5 4
0
0
2
8
0 0
1 4
2 0
0 0
7 8
0 0
3 0
6 0
0
0
0
8
5 8
0 0
1 7
0 0
0 0
4 2
0 0
6 0
0
0
2
5
4 5
3 1
0 0
0 0
0 0
0
2
8
0 0
0 0
5 6
0 0
1 4
2 0
3 8
0 0
0
0
5
3 0
5 1
0 0
0 0
4 0
0
2
5
5 0
0 0
0 0
3 0
2 4
1
0
3
3 0
1 0
0 0
2
2
2 0
0 0
0
3
2 3
0 0
0 0
2
10
2 8
9 7
0 0
...

output:

? 2 4
? 2 7
? 1 2
! 2
? 7 2
? 5 6
? 5 7
! 5
? 1 6
? 3 5
? 3 7
! 7
? 2 5
? 2 3
! 3
? 5 6
? 1 4
! 1
? 5 1
? 5 4
! 4
? 2 4
? 1 5
! 1
? 2 3
! 3
? 1 2
! 1
? 2 3
! 3
? 2 6
? 1 9
? 9 10
! 10
? 1 2
! 1
? 5 9
? 4 8
? 5 3
! 5
? 5 8
? 7 1
? 5 3
! 5
? 9 3
? 1 7
? 9 2
! 9
? 2 1
! 1
? 4 3
? 7 1
! 1
? 4 5
? 2 3
? ...

result:

ok OK (5555 test cases)

Test #3:

score: 0
Accepted
time: 28ms
memory: 1572kb

input:

600
2
2 0
0 0
2
3
2 0
3 0
0 0
2
4
4 0
1 0
0 0
3 0
0
0
5
4 0
0 0
1 0
2 0
3 0
2
0
6
4 0
6 0
2 0
5 0
0 0
1 0
0
0
7
7 0
3 0
6 0
5 0
2 0
1 0
0 0
0
1
8
7 0
0 0
2 0
8 0
1 0
5 0
3 0
6 0
0
0
0
9
7 0
4 0
2 0
1 0
0 0
8 0
9 0
5 0
6 0
2
0
2
10
9 0
6 0
8 0
7 0
0 0
10 0
2 0
4 0
5 0
1 0
0
0
2
11
2 0
10 0
6 0
9 0
0 ...

output:

? 1 2
! 2
? 1 3
! 3
? 1 3
? 2 1
! 2
? 3 4
? 4 2
! 4
? 6 4
? 3 6
! 3
? 2 6
? 4 2
! 5
? 5 7
? 8 5
? 4 8
! 4
? 1 9
? 6 5
? 9 6
! 6
? 2 10
? 8 7
? 3 8
! 8
? 9 2
? 10 6
? 6 5
! 5
? 6 1
? 4 2
? 11 4
! 11
? 2 3
? 5 9
? 11 5
! 6
? 12 9
? 8 11
? 3 8
! 8
? 14 2
? 4 7
? 7 6
! 6
? 13 8
? 14 10
? 12 14
? 4 12
! ...

result:

ok OK (600 test cases)

Test #4:

score: 0
Accepted
time: 57ms
memory: 6316kb

input:

2
99999
21832 0
77205 0
62668 0
58313 0
14640 0
76941 0
62678 0
8464 0
43145 0
26195 0
46140 0
83205 0
40047 0
81645 0
27077 0
92036 0
14236 0
3576 0
15430 0
75654 0
29049 0
62218 0
83318 0
1116 0
77861 0
9755 0
49236 0
70959 0
62295 0
33580 0
88208 0
55840 0
71061 0
24695 0
88831 0
1891 0
57285 0
9...

output:

? 70790 43991
? 98065 36882
? 44312 89400
? 59529 53895
? 65419 5852
? 67719 73222
? 77944 52650
? 20766 26559
? 17351 90943
? 30905 89442
? 11140 28160
? 69698 44332
? 19994 26618
? 26970 15827
? 26836 36425
? 5852 26836
! 26836
? 44110 46352
? 58000 45037
? 60270 4670
? 5143 10046
? 23215 73278
? ...

result:

ok OK (2 test cases)

Test #5:

score: 0
Accepted
time: 35ms
memory: 4636kb

input:

15
3
0 0
1 0
2 0
1
7
6 0
3 0
5 0
0 0
7 0
4 0
1 0
2
2
15
6 0
5 0
1 0
7 0
14 0
11 0
15 0
12 0
2 0
4 0
9 0
13 0
0 0
8 0
3 0
0
0
0
31
3 0
31 0
17 0
23 0
4 0
13 0
1 0
12 0
6 0
0 0
20 0
26 0
14 0
29 0
8 0
25 0
21 0
19 0
5 0
15 0
18 0
10 0
22 0
7 0
28 0
2 0
24 0
30 0
27 0
9 0
16 0
2
0
0
2
63
15 0
62 0
5 0
...

output:

? 3 1
! 2
? 5 1
? 1 4
! 4
? 6 9
? 7 3
? 10 7
! 10
? 13 29
? 17 18
? 24 1
? 29 24
! 24
? 37 8
? 14 30
? 38 32
? 51 13
? 13 37
! 16
? 89 36
? 6 71
? 101 116
? 64 57
? 14 59
? 116 14
! 14
? 233 64
? 68 246
? 145 28
? 40 61
? 190 230
? 69 248
? 61 69
! 61
? 48 439
? 468 437
? 322 37
? 316 202
? 57 164
?...

result:

ok OK (15 test cases)

Test #6:

score: 0
Accepted
time: 32ms
memory: 4692kb

input:

16
2
2 0
0 0
2
4
4 0
3 0
1 0
0 0
0
0
8
5 0
0 0
4 0
8 0
2 0
3 0
6 0
1 0
0
0
2
16
2 0
5 0
1 0
11 0
13 0
14 0
8 0
6 0
0 0
4 0
3 0
7 0
15 0
10 0
16 0
9 0
0
0
0
0
32
15 0
0 0
14 0
18 0
26 0
17 0
25 0
27 0
6 0
9 0
4 0
13 0
23 0
30 0
32 0
12 0
11 0
31 0
28 0
3 0
19 0
10 0
22 0
7 0
5 0
29 0
24 0
20 0
21 0
1...

output:

? 1 2
! 2
? 3 4
? 2 3
! 2
? 4 1
? 6 4
? 7 6
! 6
? 11 1
? 6 10
? 7 6
? 12 7
! 12
? 16 13
? 29 19
? 7 5
? 27 7
? 8 27
! 27
? 8 24
? 6 20
? 13 10
? 25 32
? 7 25
? 29 7
! 29
? 57 124
? 72 64
? 38 4
? 79 84
? 20 44
? 36 20
? 87 36
! 87
? 106 3
? 82 72
? 78 224
? 13 105
? 44 156
? 184 54
? 212 184
? 121 2...

result:

ok OK (16 test cases)

Test #7:

score: 0
Accepted
time: 28ms
memory: 4724kb

input:

15
2
2 0
0 0
2
6
5 0
1 0
6 0
2 0
3 0
0 0
0
2
14
12 0
0 0
11 0
5 0
7 0
1 0
8 0
10 0
14 0
13 0
6 0
9 0
2 0
4 0
0
0
1
30
10 0
29 0
23 0
28 0
9 0
14 0
2 0
30 0
19 0
0 0
15 0
1 0
22 0
8 0
18 0
27 0
7 0
24 0
26 0
3 0
20 0
25 0
6 0
17 0
4 0
12 0
21 0
16 0
13 0
5 0
0
0
0
2
62
24 0
22 0
18 0
17 0
49 0
53 0
3...

output:

? 1 2
! 2
? 1 3
? 4 1
! 1
? 14 5
? 6 12
? 3 6
! 11
? 27 20
? 2 13
? 18 17
? 11 18
! 18
? 33 30
? 4 32
? 11 31
? 19 59
? 59 11
! 37
? 94 9
? 69 59
? 4 21
? 78 89
? 43 85
? 85 94
! 85
? 159 204
? 47 235
? 158 109
? 23 30
? 198 144
? 240 224
? 224 198
! 198
? 68 449
? 319 190
? 450 334
? 170 422
? 182 ...

result:

ok OK (15 test cases)

Test #8:

score: 0
Accepted
time: 28ms
memory: 1620kb

input:

600
2
2 0
0 0
2
3
3 2
0 0
0 0
2
4
3 0
0 0
0 0
1 2
0
0
5
0 0
3 1
4 5
0 0
0 0
1
0
6
3 5
1 4
0 0
6 0
0 0
0 0
0
0
7
3 7
0 0
0 0
2 5
0 0
1 4
0 0
0
1
8
0 0
3 7
1 0
2 5
6 8
0 0
0 0
0 0
0
1
0
9
9 8
0 0
7 2
0 0
0 0
0 0
0 0
4 5
3 6
0
1
2
10
3 6
8 0
4 2
5 7
0 0
10 9
0 0
0 0
0 0
0 0
0
1
2
11
0 0
4 9
5 8
6 3
0 0...

output:

? 1 2
! 2
? 3 2
! 2
? 4 3
? 4 2
! 4
? 2 5
? 3 4
! 3
? 2 5
? 2 6
! 2
? 1 4
? 3 7
! 1
? 4 3
? 6 8
? 4 5
! 4
? 1 3
? 4 5
? 1 8
! 8
? 1 4
? 10 9
? 1 6
! 6
? 2 3
? 10 11
? 2 9
! 9
? 1 5
? 4 8
? 1 7
! 7
? 13 8
? 12 5
? 13 11
! 12
? 14 10
? 3 8
? 1 9
! 1
? 8 14
? 4 9
? 15 10
! 10
? 10 9
? 8 2
? 16 12
! 12
...

result:

ok OK (600 test cases)

Test #9:

score: 0
Accepted
time: 45ms
memory: 3168kb

input:

2
99999
0 0
7999 97267
75750 37659
0 0
0 0
33761 92098
90707 18838
13602 27569
0 0
0 0
0 0
0 0
0 0
0 0
0 0
14586 86647
1519 23132
0 0
3430 14643
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
47066 36968
95308 38482
34100 25297
0 0
0 0
0 0
0 0
88902 58991
0 0
0 0
66315 68538
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0...

output:

? 50379 22163
? 79924 11838
? 18079 15463
? 72017 29994
? 80147 27856
? 80763 26264
? 39876 84186
? 73287 34615
? 43462 43070
? 38721 85806
? 84940 93114
? 3443 79116
? 49016 68555
? 56289 87545
? 32426 3887
! 3887
? 72481 42261
? 96633 84675
? 2124 81852
? 13836 79494
? 80643 24965
? 38932 5573
? 5...

result:

ok OK (2 test cases)

Test #10:

score: 0
Accepted
time: 29ms
memory: 2644kb

input:

15
3
3 2
0 0
0 0
1
7
0 0
3 6
0 0
7 2
0 0
0 0
5 1
2
2
15
14 12
0 0
0 0
0 0
8 6
10 11
0 0
3 7
2 4
0 0
0 0
0 0
15 5
0 0
9 1
0
0
0
31
4 9
0 0
29 17
0 0
0 0
15 31
5 21
18 14
0 0
0 0
0 0
16 2
12 7
0 0
23 10
0 0
30 13
0 0
24 27
11 26
0 0
0 0
0 0
0 0
19 20
0 0
0 0
0 0
6 25
8 1
28 22
2
0
0
2
63
53 48
40 57
0...

output:

? 3 2
! 1
? 7 2
? 3 6
! 6
? 15 5
? 9 1
? 2 4
! 2
? 29 17
? 30 13
? 8 1
? 18 14
! 14
? 1 2
? 53 48
? 63 19
? 30 56
? 55 59
! 56
? 20 115
? 71 68
? 67 3
? 18 16
? 123 55
? 117 104
! 104
? 70 140
? 78 250
? 223 4
? 220 204
? 67 144
? 75 15
? 242 199
! 242
? 60 121
? 414 74
? 99 184
? 301 403
? 425 477
...

result:

ok OK (15 test cases)

Test #11:

score: 0
Accepted
time: 20ms
memory: 2692kb

input:

16
2
0 0
1 0
2
4
4 2
0 0
0 0
3 0
0
0
8
3 0
0 0
0 0
0 0
1 2
0 0
6 4
5 7
0
1
2
16
16 15
0 0
0 0
0 0
7 11
8 10
0 0
13 0
0 0
0 0
0 0
3 9
0 0
4 2
5 14
6 12
0
0
1
32
0 0
22 21
25 18
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
5 10
30 0
1 24
12 31
0 0
0 0
16 8
3 15
11 26
23 14
28 20
6 9
0 0
13 27
0 0
0 0
7 17
0 0
0 0
...

output:

? 2 1
! 1
? 1 3
? 1 2
! 1
? 8 1
? 6 4
? 8 7
! 7
? 1 6
? 5 14
? 7 11
! 5
? 32 3
? 22 21
? 28 20
? 7 17
! 17
? 37 58
? 19 40
? 63 55
? 5 50
? 52 13
! 50
? 28 83
? 75 21
? 122 47
? 67 112
? 98 34
? 66 86
! 66
? 221 218
? 199 243
? 92 202
? 175 116
? 5 214
? 37 254
? 149 222
! 222
? 81 324
? 36 227
? 15...

result:

ok OK (16 test cases)

Test #12:

score: 0
Accepted
time: 29ms
memory: 2644kb

input:

15
2
0 0
1 0
2
6
6 4
1 5
0 0
0 0
3 0
0 0
0
2
14
0 0
1 7
5 11
13 9
0 0
2 8
0 0
10 0
0 0
0 0
0 0
14 6
0 0
3 4
0
0
2
30
7 0
5 13
0 0
0 0
14 30
15 20
0 0
0 0
3 19
0 0
0 0
11 21
9 1
16 24
0 0
0 0
28 2
8 10
0 0
0 0
0 0
0 0
18 6
0 0
4 29
12 25
0 0
23 26
0 0
27 22
0
0
0
0
62
0 0
0 0
28 47
7 38
0 0
0 0
17 26...

output:

? 2 1
! 1
? 2 4
? 2 3
! 3
? 12 4
? 2 8
? 1 7
! 7
? 17 26
? 5 13
? 14 30
? 16 24
! 16
? 61 43
? 18 30
? 31 50
? 10 51
? 21 8
! 21
? 125 93
? 17 123
? 15 5
? 52 12
? 113 4
? 24 97
! 97
? 241 224
? 112 193
? 88 124
? 17 30
? 242 116
? 44 52
? 169 13
! 13
? 69 32
? 210 172
? 19 233
? 186 228
? 352 269
?...

result:

ok OK (15 test cases)

Test #13:

score: 0
Accepted
time: 47ms
memory: 1576kb

input:

600
2
0 0
1 0
2
3
0 0
1 3
0 0
2
4
2 4
0 0
0 0
3 0
0
0
5
2 5
0 0
0 0
0 0
4 3
1
0
6
6 4
0 0
0 0
3 0
2 1
0 0
0
0
7
0 0
0 0
2 4
5 6
0 0
0 0
1 3
2
0
8
2 7
0 0
6 0
0 0
8 3
0 0
4 5
0 0
0
0
2
9
5 2
0 0
7 4
6 8
0 0
0 0
0 0
9 1
0 0
0
0
2
10
3 5
10 7
0 0
0 0
6 2
0 0
4 0
9 1
0 0
0 0
0
0
2
11
9 6
4 1
0 0
0 0
11 ...

output:

? 2 1
! 1
? 1 3
! 3
? 1 3
? 1 2
! 1
? 1 3
? 5 4
! 5
? 5 4
? 5 2
! 5
? 7 4
? 5 6
! 5
? 7 3
? 1 4
? 1 2
! 2
? 4 1
? 3 6
? 3 7
! 7
? 1 2
? 8 3
? 8 9
! 9
? 1 10
? 10 8
? 5 11
! 11
? 12 1
? 11 12
? 7 9
! 7
? 2 4
? 12 2
? 2 10
! 2
? 12 8
? 14 12
? 12 2
! 2
? 9 14
? 14 1
? 11 15
! 15
? 10 15
? 2 10
? 5 9
?...

result:

ok OK (600 test cases)

Test #14:

score: 0
Accepted
time: 48ms
memory: 4768kb

input:

2
99999
96748 53986
34197 77552
29863 63559
79099 26449
45078 1051
0 0
27416 4135
0 0
38606 81189
93892 68603
48776 185
79602 18311
51243 83678
89044 40032
28883 35663
0 0
0 0
21603 15821
0 0
51448 75971
70275 8326
0 0
0 0
57049 72937
3297 94939
0 0
59258 39159
3205 34675
54876 24769
0 0
0 0
0 0
851...

output:

? 96970 71188
? 6820 87538
? 32876 59029
? 20365 46360
? 49372 9490
? 17131 97012
? 47373 63260
? 26578 23892
? 55470 55362
? 5567 28004
? 93767 48991
? 29289 88326
? 75914 36812
? 20666 94892
? 28004 20666
? 20666 98068
! 20666
? 70265 86513
? 11800 36225
? 99536 25987
? 59217 63730
? 29352 84543
?...

result:

ok OK (2 test cases)

Test #15:

score: 0
Accepted
time: 31ms
memory: 3648kb

input:

15
3
0 0
1 3
0 0
1
7
0 0
1 7
0 0
6 2
3 4
0 0
0 0
2
2
15
2 11
0 0
13 1
12 14
0 0
0 0
5 8
10 4
0 0
0 0
0 0
0 0
0 0
6 15
9 3
2
2
0
31
24 22
0 0
31 6
0 0
4 3
11 19
0 0
0 0
28 21
25 20
0 0
0 0
0 0
2 16
0 0
27 18
8 10
15 17
26 1
23 29
7 5
12 14
0 0
0 0
0 0
0 0
0 0
0 0
30 13
0 0
0 0
2
2
2
1
63
51 35
33 57
...

output:

? 1 3
! 2
? 5 2
? 1 7
! 7
? 4 15
? 15 1
? 2 11
! 2
? 1 14
? 18 10
? 10 29
? 30 13
! 29
? 44 38
? 1 42
? 9 2
? 2 34
? 5 23
! 23
? 31 51
? 62 96
? 8 100
? 89 52
? 52 82
? 70 57
! 57
? 122 124
? 102 162
? 231 84
? 135 110
? 223 147
? 147 236
? 201 80
! 236
? 266 322
? 414 146
? 335 72
? 306 66
? 76 89
...

result:

ok OK (15 test cases)

Test #16:

score: 0
Accepted
time: 29ms
memory: 3672kb

input:

16
2
0 0
1 0
2
4
0 0
1 0
4 2
0 0
0
0
8
0 0
0 0
0 0
3 5
8 6
2 0
1 4
0 0
0
0
2
16
0 0
7 8
0 0
1 2
0 0
0 0
0 0
5 10
3 0
12 16
14 13
0 0
15 4
0 0
0 0
6 9
0
0
0
0
32
26 17
5 31
28 25
18 7
0 0
0 0
14 12
15 0
22 4
0 0
29 1
19 2
0 0
0 0
0 0
6 8
10 21
0 0
0 0
0 0
13 3
0 0
0 0
0 0
32 30
0 0
20 9
0 0
0 0
23 16...

output:

? 2 1
! 1
? 3 1
? 3 4
! 3
? 4 6
? 7 3
? 7 1
! 1
? 2 10
? 13 2
? 11 15
? 11 14
! 11
? 11 17
? 7 2
? 9 7
? 27 22
? 27 20
! 20
? 31 10
? 6 60
? 45 22
? 26 45
? 14 4
? 14 64
! 14
? 38 43
? 66 19
? 105 12
? 23 39
? 9 23
? 116 74
? 116 32
! 116
? 60 89
? 248 208
? 203 99
? 234 222
? 108 210
? 173 108
? 13...

result:

ok OK (16 test cases)

Test #17:

score: 0
Accepted
time: 32ms
memory: 3644kb

input:

15
2
0 0
1 0
2
6
0 0
5 0
1 2
0 0
0 0
4 3
2
0
14
8 14
0 0
0 0
0 0
0 0
12 11
10 0
0 0
2 7
0 0
4 1
0 0
3 6
5 9
2
0
0
30
29 21
6 9
0 0
0 0
0 0
0 0
0 0
19 17
24 30
0 0
14 26
23 0
0 0
0 0
25 18
0 0
7 20
16 12
0 0
13 11
28 8
10 15
0 0
0 0
0 0
3 22
5 2
0 0
0 0
4 1
0
2
0
2
62
0 0
34 33
0 0
0 0
0 0
37 45
0 0
...

output:

? 2 1
! 1
? 6 2
? 2 5
! 2
? 11 14
? 14 7
? 14 5
! 14
? 8 20
? 9 1
? 1 8
? 1 29
! 29
? 59 42
? 2 15
? 44 51
? 51 2
? 2 34
! 34
? 40 17
? 11 102
? 88 27
? 72 111
? 111 88
? 111 10
! 10
? 189 90
? 65 224
? 229 10
? 57 98
? 16 15
? 15 67
? 15 13
! 15
? 60 192
? 29 303
? 312 190
? 118 457
? 382 143
? 275...

result:

ok OK (15 test cases)

Test #18:

score: 0
Accepted
time: 52ms
memory: 3096kb

input:

2
99999
0 0
88119 0
72740 0
6901 19702
0 0
10620 84889
0 0
9552 63972
45156 60768
9152 72379
0 0
59875 97207
48193 0
17282 54916
65927 27713
80083 15817
36966 75381
0 0
77279 56298
0 0
11554 61779
0 0
89976 0
65282 42151
95206 62876
97329 86772
0 0
0 0
0 0
11820 0
0 0
20432 0
50520 39907
0 0
46948 1...

output:

? 52174 35226
? 26122 16093
? 11494 10853
? 11494 91694
? 90037 73088
? 90037 21572
? 91442 51091
? 7067 93596
? 14316 75096
? 75096 55875
? 42793 96805
? 42793 59747
? 472 67072
? 59747 64770
! 92650
? 36933 80592
? 68004 50906
? 73367 65219
? 20489 33796
? 19704 74041
? 74041 35779
? 35779 85560
?...

result:

ok OK (2 test cases)

Test #19:

score: 0
Accepted
time: 282ms
memory: 1556kb

input:

100000
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
0
2
0 0
0 1
2
2
0 0
0 1
0
2
0 0...

output:

? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 2
? 2 1
! 2
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
? 2 1
! 1
...

result:

ok OK (100000 test cases)

Extra Test:

score: 0
Extra Test Passed
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Server Time: 2025-01-20 15:52:18 | OpenSource Project