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ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#310461	#7181. Graph Cuts	juruoh	TL	685ms	97436kb	C++14	3.0kb	2024-01-21 14:30:28	2024-01-21 14:30:29

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你现在查看的是最新测评结果

[2024-01-21 14:30:29]
评测

测评结果：TL
用时：685ms
内存：97436kb

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[2024-01-21 14:30:28]
提交

answer

#include <bits/stdc++.h>

using namespace std;

int readll() {
    int t = 0;
    char ch = getchar();
    while (ch < '0' || ch > '9') ch = getchar();
    while ('0' <= ch && ch <= '9') t = (t << 3) + (t << 1) + (ch - '0'), ch = getchar();
    return t;
}

const int maxn = 1e5 + 5;
struct Edge {
    int e, nex;
    Edge(int e = 0, int nex = 0) : e(e), nex(nex) {}
} E[maxn << 1];
int hd[maxn], tote;
inline void addedge(int u, int e) {
    E[++tote] = Edge(e, hd[u]), hd[u] = tote;
}
int n, m, q, eu[maxn], ev[maxn], qx[maxn], ans[maxn], vis[maxn], fl[maxn], qc[maxn];
char qt[maxn];
int eid[maxn];

void solve1(int x) {
    for (int i = 1; i <= n; i++) fl[i] = 0, eid[i] = 0;
    queue<int> q1, q0;
    for (int i = hd[x]; i; i = E[i].nex) {
        int e = E[i].e;
        if (eu[e] == x) eid[ev[e]] = e, q1.push(ev[e]);
        else eid[eu[e]] = e, q1.push(eu[e]);
    }
    for (int i = 1; i <= q; i++) {
        if (qt[i] == '?' && !ans[i]) {
            if (fl[x]) {
                while (!q1.empty() && (fl[q1.front()] || vis[eid[q1.front()]])) q1.pop();
                if (!q1.empty()) ans[i] = eid[q1.front()], vis[ans[i]] = 1, q1.pop();
            } else {
                while (!q0.empty() && (!fl[q0.front()] || vis[eid[q0.front()]])) q0.pop();
                if (!q0.empty()) ans[i] = eid[q0.front()], vis[ans[i]] = 1, q0.pop();
            }
        } else {
            fl[qx[i]] ^= 1;
            if (qx[i] == x || !eid[qx[i]] || vis[eid[qx[i]]]) continue;
            (fl[qx[i]] ? q0 : q1).push(qx[i]);
        }
    }
}

void solve2() {
    queue<int> que;
    for (int i = 1; i <= n; i++) fl[i] = 0;
    for (int i = 1; i <= q; i++) {
        if (qt[i] == '?' && !ans[i]) {
            while (!que.empty() && (vis[que.front()] || fl[eu[que.front()]] == fl[ev[que.front()]])) que.pop();
            if (!que.empty()) ans[i] = que.front(), vis[que.front()] = 1, que.pop();
        } else {
            fl[qx[i]] ^= 1;
            for (int j = hd[qx[i]]; j; j = E[j].nex) {
                int e = E[j].e;
                if (!vis[e] && fl[eu[e]] != fl[ev[e]]) que.push(e);
            }
            
        }
    }
}
std::vector< pair<int, int> > ls;
int main() {
    // freopen("test.in", "r", stdin);
    // freopen("test.out", "w", stdout);
    n = readll(), m = readll();
    for (int i = 1; i <= m; i++) {
        eu[i] = readll(), ev[i] = readll();
        addedge(eu[i], i), addedge(ev[i], i);
    }
    q = readll();
    for (int i = 1; i <= q; i++) {
        char ch = getchar();
        while (ch != '+' && ch != '-' && ch != '?') ch = getchar();
        qt[i] = ch;
        if (qt[i] != '?') qx[i] = readll(), qc[qx[i]]++;
    }
    for (int i = 1; i <= n; i++) ls.push_back(make_pair(-qc[i], i));
    sort(ls.begin(), ls.end());
    for (int i = 0; i < min(n, 400); i++) solve1(ls[i].second);
    solve2();
    for (int i = 1; i <= q; i++) if (qt[i] == '?') printf("%d\n", ans[i]);
    return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100

Accepted

time: 1ms

memory: 5332kb

input:

output:

result:

ok q=10

Test #2:

score: 0

Accepted

time: 1ms

memory: 5140kb

input:

0 0
0

output:

result:

ok q=0

Test #3:

score: 0

Accepted

time: 1ms

memory: 5284kb

input:

0 0
1
?

output:

result:

ok q=1

Test #4:

score: 0

Accepted

time: 199ms

memory: 6236kb

input:

output:

result:

ok q=100000

Test #5:

score: 0

Accepted

time: 633ms

memory: 97296kb

input:

output:

result:

ok q=100000

Test #6:

score: 0

Accepted

time: 658ms

memory: 69404kb

input:

output:

result:

ok q=100000

Test #7:

score: 0

Accepted

time: 592ms

memory: 46036kb

input:

output:

result:

ok q=100000

Test #8:

score: 0

Accepted

time: 548ms

memory: 28904kb

input:

output:

result:

ok q=100000

Test #9:

score: 0

Accepted

time: 410ms

memory: 16032kb

input:

output:

result:

ok q=100000

Test #10:

score: 0

Accepted

time: 229ms

memory: 8904kb

input:

output:

result:

ok q=100000

Test #11:

score: 0

Accepted

time: 49ms

memory: 6176kb

input:

output:

result:

ok q=100000

Test #12:

score: 0

Accepted

time: 640ms

memory: 97356kb

input:

output:

result:

ok q=100000

Test #13:

score: 0

Accepted

time: 685ms

memory: 69168kb

input:

output:

result:

ok q=100000

Test #14:

score: 0

Accepted

time: 632ms

memory: 46048kb

input:

output:

result:

ok q=100000

Test #15:

score: 0

Accepted

time: 549ms

memory: 28552kb

input:

output:

result:

ok q=100000

Test #16:

score: 0

Accepted

time: 400ms

memory: 16164kb

input:

output:

result:

ok q=100000

Test #17:

score: 0

Accepted

time: 227ms

memory: 8888kb

input:

output:

result:

ok q=100000

Test #18:

score: 0

Accepted

time: 68ms

memory: 7220kb

input:

output:

result:

ok q=100000

Test #19:

score: 0

Accepted

time: 610ms

memory: 97292kb

input:

output:

result:

ok q=100000

Test #20:

score: 0

Accepted

time: 653ms

memory: 69356kb

input:

output:

result:

ok q=100000

Test #21:

score: 0

Accepted

time: 633ms

memory: 46328kb

input:

output:

result:

ok q=100000

Test #22:

score: 0

Accepted

time: 552ms

memory: 28236kb

input:

output:

result:

ok q=100000

Test #23:

score: 0

Accepted

time: 398ms

memory: 16120kb

input:

output:

result:

ok q=100000

Test #24:

score: 0

Accepted

time: 222ms

memory: 8892kb

input:

output:

result:

ok q=100000

Test #25:

score: 0

Accepted

time: 54ms

memory: 6408kb

input:

output:

result:

ok q=100000

Test #26:

score: 0

Accepted

time: 642ms

memory: 97436kb

input:

output:

result:

ok q=100000

Test #27:

score: 0

Accepted

time: 667ms

memory: 69336kb

input:

output:

result:

ok q=100000

Test #28:

score: 0

Accepted

time: 617ms

memory: 46324kb

input:

output:

result:

ok q=100000

Test #29:

score: 0

Accepted

time: 547ms

memory: 28284kb

input:

output:

result:

ok q=100000

Test #30:

score: 0

Accepted

time: 417ms

memory: 16112kb

input:

output:

result:

ok q=100000

Test #31:

score: 0

Accepted

time: 233ms

memory: 8840kb

input:

output:

result:

ok q=100000

Test #32:

score: 0

Accepted

time: 51ms

memory: 6184kb

input:

output:

result:

ok q=100000

Test #33:

score: 0

Accepted

time: 616ms

memory: 97360kb

input:

output:

result:

ok q=100000

Test #34:

score: 0

Accepted

time: 638ms

memory: 69476kb

input:

output:

result:

ok q=100000

Test #35:

score: 0

Accepted

time: 595ms

memory: 46588kb

input:

output:

result:

ok q=100000

Test #36:

score: 0

Accepted

time: 550ms

memory: 28864kb

input:

output:

result:

ok q=100000

Test #37:

score: 0

Accepted

time: 401ms

memory: 16112kb

input:

output:

result:

ok q=100000

Test #38:

score: 0

Accepted

time: 213ms

memory: 8876kb

input:

output:

result:

ok q=100000

Test #39:

score: 0

Accepted

time: 83ms

memory: 6936kb

input:

output:

result:

ok q=100000

Test #40:

score: 0

Accepted

time: 614ms

memory: 97300kb

input:

output:

result:

ok q=100000

Test #41:

score: 0

Accepted

time: 675ms

memory: 69612kb

input:

output:

result:

ok q=100000

Test #42:

score: 0

Accepted

time: 610ms

memory: 46040kb

input:

output:

result:

ok q=100000

Test #43:

score: 0

Accepted

time: 576ms

memory: 28908kb

input:

output:

result:

ok q=100000

Test #44:

score: 0

Accepted

time: 406ms

memory: 16436kb

input:

output:

result:

ok q=100000

Test #45:

score: 0

Accepted

time: 222ms

memory: 8784kb

input:

output:

result:

ok q=100000

Test #46:

score: 0

Accepted

time: 54ms

memory: 6400kb

input:

output:

result:

ok q=100000

Test #47:

score: 0

Accepted

time: 77ms

memory: 9100kb

input:

100000 100000
5722 1
35633 1
76503 1
2 8454
2 93428
3 91414
4 55025
21132 5
6 22400
6 80941
7 22043
7 29361
7 73158
78568 7
8 24159
8 26175
27612 9
39375 9
5454 10
24262 10
40601 10
11 8620
59525 11
11 79781
11 92891
64034 12
33728 14
14 59378
14 79826
560 16
16 31445
35262 16
17911 17
28509 17
9364...

output:

result:

ok q=100000

Test #48:

score: 0

Accepted

time: 133ms

memory: 9240kb

input:

100000 100000
32763 1
1 41318
52251 1
66464 2
83572 2
67186 5
7 64990
34545 8
8 96178
8628 9
10 8181
94794 15
16 33467
16 34451
85594 16
17 20413
31799 17
17 41753
18 61787
71853 18
19 5788
19 49136
97968 19
34661 20
20 61751
95244 20
20211 21
31082 21
22 96882
53538 23
53831 24
81268 24
25 52202
61...

output:

result:

ok q=100000

Test #49:

score: 0

Accepted

time: 194ms

memory: 9348kb

input:

100000 100000
98 1
1 39536
2 7197
2 36925
64304 2
3 90981
4 55694
4 58594
6 14112
6 61223
49657 7
49961 8
9 63064
84290 9
9616 10
10 26834
10 81424
11 28592
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11 67518
12 65671
12 77007
13 83518
88724 13
14 22525
28934 14
38904 15
18454 16
16 34371
33103 17
63576 17
46939 18
67514 18
18 72374...

output:

result:

ok q=100000

Test #50:

score: 0

Accepted

time: 227ms

memory: 9124kb

input:

100000 100000
1 30554
51310 1
1 71883
94585 1
2 40250
59351 2
2 60517
72989 3
4 3248
14035 4
4 90751
5 786
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47934 11
11 71829
24007 12
44565 12
48286 12
70260 12
12 70368
98761 12
20547 14
7549...

output:

result:

ok q=100000

Test #51:

score: 0

Accepted

time: 192ms

memory: 9156kb

input:

100000 100000
26140 1
46196 2
2 54845
78912 3
3 90871
4 12358
5 33609
5 43410
5 78393
47818 6
7 48862
13216 8
8 36636
8 40979
52931 8
8 80000
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52306 10
14072 12
36807 12
66342 12
344 13
13 4469
13 14570
13 52573
15 29037
15 38532
86576 15
16 9718
43023 16
16 86523
19 16448
20 15703
20 62471
8...

output:

result:

ok q=100000

Test #52:

score: 0

Accepted

time: 127ms

memory: 9120kb

input:

100000 100000
2005 1
1 15170
57799 2
4 38977
4 57240
42542 5
5 53318
5 75678
6 88650
65147 7
8 53626
8 70633
22352 10
11 49862
12 14548
12 50661
12 69416
13 22675
13 57792
3230 14
61629 16
16 94304
19 4752
11292 19
19 23963
47970 19
3280 20
20 13431
37640 20
20 43437
22 59910
69629 22
94875 22
23 52...

output:

result:

ok q=100000

Test #53:

score: 0

Accepted

time: 51ms

memory: 7988kb

input:

100000 100000
40394 1
75982 2
3 18844
73366 3
88698 3
4020 6
6 73638
7 22013
65853 7
8 75952
8 91846
8 92431
35947 9
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60988 10
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14 32289
14 45866
85823 14
15 5953
19579 15
9976 16
16 26641
17 70399
80811 17
18 57277
19 24826
19 72978
15405 20
64474...

output:

result:

ok q=100000

Test #54:

score: 0

Accepted

time: 84ms

memory: 8924kb

input:

100000 100000
1 46719
1 85926
2 31507
3 10325
25701 3
4 20660
4 24390
5 28826
5 32895
5 65707
5 85849
26769 6
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12 85402
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13 91901
14 36759
95374 14
40235 16
16 95131
17 47185
49412 17
86267 17
30733 18
19 36525
99630 20...

output:

result:

ok q=100000

Test #55:

score: 0

Accepted

time: 101ms

memory: 9452kb

input:

100000 100000
1 14816
1 36843
1 67254
69974 1
3 22460
4 94861
51245 5
5 53683
54692 6
6 91387
6 91712
8 56288
8 88631
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23107 9
9 37340
18545 10
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86500 10
57406 11
11 96238
486 12
12 44026
51175 13
14 92685
14 94886
14 99844
66818 15
58293 16
16 92531
17 32186
36963 18
18 53409...

output:

result:

ok q=100000

Test #56:

score: 0

Accepted

time: 128ms

memory: 9280kb

input:

100000 100000
1 92961
32241 2
2 81221
4608 3
16927 3
18769 3
3 43374
22317 4
55044 4
18810 5
6 72739
61007 7
9 25577
9 27864
34366 9
10 16913
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60805 10
74697 10
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10021 11
23696 12
36468 12
51197 12
86124 12
12 89628
14 6535
14 21742
14 36158
57841 14
15 81216
15 84873
16 457...

output:

result:

ok q=100000

Test #57:

score: 0

Accepted

time: 149ms

memory: 9236kb

input:

100000 100000
1 27333
1 84324
96084 1
9114 2
85952 2
3 5372
4 6733
9091 4
58622 4
4 86657
14441 5
55881 5
77265 5
5 80838
6 348
8 52617
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9 73540
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94661 9
9 98721
46654 10
10 52226
12 55380
12 79729
13 40841
13 58505
80468 13
57058 14
14 59095
23508 15
68757 15
6286 17
17 39373
...

output:

result:

ok q=100000

Test #58:

score: 0

Accepted

time: 135ms

memory: 9356kb

input:

100000 100000
60818 1
1 61357
77477 1
3 45025
59533 3
46950 4
78991 4
97104 4
36194 5
6 64485
1740 7
5623 8
23553 8
16292 9
62566 9
9 98158
10 23566
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84382 10
10 89508
11 12522
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89591 14
15 22620
22939 16
56415 16
16 83923
18 29619
18 83502
19 24669
79130 19
43646 20
21 6966...

output:

result:

ok q=100000

Test #59:

score: 0

Accepted

time: 104ms

memory: 9272kb

input:

100000 100000
34616 1
58002 1
1 70045
10303 2
2 39631
40632 2
10056 3
41853 3
70173 3
4 92959
5 47483
16468 6
50684 6
67732 6
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47014 8
59046 9
10 65208
10 78362
11266 11
24545 11
12 21449
66415 12
92002 12
13 19643
13 23316
96267 14
91298 15
17801 16
49544 16
69757 16
4694 17
17 24548
221 18
...

output:

result:

ok q=100000

Test #60:

score: 0

Accepted

time: 69ms

memory: 9056kb

input:

100000 100000
1 14279
25034 1
1 25644
1 33907
55554 1
32635 2
48898 2
67742 2
30821 3
62159 3
62878 4
4 99567
5427 5
81073 5
40389 6
68943 6
86783 6
7 7357
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8 49165
66447 8
15193 10
10 27651
52896 10
11 21927
31071 11
65058 11
1885 12
12 86604
13 34951
13 57211
73415 13
76672 13
31146 14
4934...

output:

result:

ok q=100000

Test #61:

score: 0

Accepted

time: 71ms

memory: 8688kb

input:

100000 100000
36686 1
2 28317
3 43331
58975 3
9005 5
5 38587
85424 5
87253 5
91242 6
7 12636
7 28747
43112 7
56525 7
95056 7
8 67866
8 96414
15486 9
9 17569
9 27913
9 45216
57385 9
12037 10
10 26847
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10 69558
91082 10
1181 11
29864 11
11 51315
74564 11
11 99360
50347 12
12 70424
80616 12
810...

output:

result:

ok q=100000

Test #62:

score: 0

Accepted

time: 73ms

memory: 8664kb

input:

100000 100000
19575 1
26203 1
72508 1
1 97963
14667 2
16976 2
3 6175
3 67390
3 85817
3 95274
61098 4
5 63076
48837 6
6 85456
8 11139
8053 9
9 14304
9 42080
78302 9
87001 9
95714 9
10 11640
10 38250
11 68261
33284 12
34067 13
37576 13
13 83578
15 23823
35578 16
57809 16
17 35284
43161 17
17 47477
516...

output:

result:

ok q=100000

Test #63:

score: 0

Accepted

time: 75ms

memory: 8652kb

input:

100000 100000
36059 1
46485 1
23653 2
73424 2
2 74494
51828 3
4 33328
53661 4
34793 5
6 51871
55444 6
6 65656
8 16246
8 34477
10425 9
62445 9
21534 10
10 30313
60761 10
96061 10
7597 11
11 15469
63367 12
40382 13
14 75126
15 56288
15 84929
53927 16
64468 16
17 53139
18 5845
76176 18
19 24677
19 5891...

output:

result:

ok q=100000

Test #64:

score: 0

Accepted

time: 85ms

memory: 8648kb

input:

100000 100000
20177 2
2 98955
3 46743
3 46866
62628 3
12631 4
75181 4
5 54593
27546 6
6 31901
6 83336
6 90688
7 32220
7 63366
8 61776
37721 9
9 48206
9 70008
96585 9
10 62990
98079 10
11 11607
21944 11
11 80964
13 9208
13 49235
13 69968
13 85800
38176 14
57272 14
15 3765
16 67576
17 40546
17 44435
1...

output:

result:

ok q=100000

Test #65:

score: 0

Accepted

time: 71ms

memory: 8664kb

input:

100000 100000
1 33218
2 26924
4 22063
4 72727
83189 4
5 26165
50928 5
6 12110
17480 7
39161 7
7 76692
20436 8
36025 8
9 52297
9 58874
67940 9
10 17168
10 40179
10665 11
11 26766
11 26798
28558 11
41443 11
91932 11
11 96520
12 38384
89050 13
14 44040
14 60933
63286 14
14 91796
38298 15
83369 15
20977...

output:

result:

ok q=100000

Test #66:

score: 0

Accepted

time: 75ms

memory: 8572kb

input:

100000 100000
97038 1
2 12394
73478 2
27345 3
3 52828
3 94198
17649 4
34700 4
4 48092
90308 4
4 92571
5 73178
5 96066
1197 6
79796 6
6 95080
7 6897
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8 57604
8 70048
29738 10
10 42975
10 99064
11 20156
11 25952
51206 11
11 97949
38714 12
92965 12
10950 13
15 6617
8272 15
17383 15
37580 15
5035...

output:

result:

ok q=100000

Test #67:

score: 0

Accepted

time: 80ms

memory: 8704kb

input:

100000 100000
1 43054
1 66061
45045 4
81759 5
15827 6
6 40801
78430 6
6 83704
3488 9
32237 9
10 8261
10 37635
98555 10
82566 11
30294 12
68894 12
13 32989
92708 14
94972 14
15 41948
16 28327
20490 17
52712 17
18 23230
18 77251
9533 19
66382 19
20 10583
23214 22
32369 22
24 32167
75443 24
26 9052
278...

output:

result:

ok q=100000

Test #68:

score: 0

Accepted

time: 55ms

memory: 8732kb

input:

99970 100000
2 1
1 3
1 4
1 5
1 6
1 7
8 1
9 1
1 10
11 1
1 12
13 1
1 14
15 1
1 16
17 1
1 18
19 1
1 20
21 1
22 1
23 1
1 24
25 1
1 26
1 27
1 28
29 1
1 30
1 31
1 32
33 1
34 1
35 1
36 1
37 1
38 1
39 1
40 1
41 1
1 42
1 43
1 44
1 45
46 1
47 1
48 1
1 49
50 1
1 51
1 52
1 53
54 1
1 55
56 1
57 1
1 58
59 1
1 60
...

output:

result:

ok q=100000

Test #69:

score: 0

Accepted

time: 60ms

memory: 8148kb

input:

99970 100000
2 1
1 3
1 4
1 5
1 6
7 1
1 8
9 1
1 10
11 1
12 1
13 1
1 14
15 1
1 16
1 17
1 18
19 1
1 20
1 21
1 22
1 23
24 1
25 1
26 1
27 1
28 1
29 1
30 1
1 31
1 32
1 33
34 1
1 35
36 1
37 1
38 1
39 1
1 40
41 1
42 1
1 43
1 44
1 45
46 1
1 47
48 1
49 1
1 50
51 1
52 1
53 1
1 54
55 1
1 56
1 57
1 58
1 59
60 1
...

output:

result:

ok q=100000

Test #70:

score: -100

Time Limit Exceeded

input:

99970 100000
1 2
3 1
1 4
1 5
1 6
7 1
1 8
9 1
1 10
11 1
1 12
13 1
14 1
15 1
16 1
1 17
18 1
19 1
1 20
1 21
22 1
23 1
1 24
25 1
1 26
1 27
28 1
29 1
30 1
1 31
32 1
1 33
1 34
1 35
36 1
1 37
38 1
39 1
40 1
1 41
42 1
43 1
1 44
45 1
1 46
47 1
48 1
49 1
1 50
51 1
1 52
53 1
1 54
55 1
1 56
57 1
58 1
59 1
60 1
...