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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#133666#4934. Forbidden CardSolitaryDream#WA 17ms9280kbC++202.1kb2023-08-02 12:41:572023-08-02 12:42:00

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-08-02 12:42:00]
  • 评测
  • 测评结果:WA
  • 用时:17ms
  • 内存:9280kb
  • [2023-08-02 12:41:57]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 10;
const int M = 1e6 + 10;
int n, m, a[N], b[N];
int vis[M];
int ans[N];
int fa[N];
inline int Ask(int x) {
    return fa[x] >= 0 ? fa[x] = Ask(fa[x]) : x;
}
int main() {
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= n; ++i) {
        scanf("%d%d", &a[i], &b[i]);
    }
    vector<int> seq;
    int loser = 1;
    memset(vis, -1, sizeof vis);
    for (int round = 0; round < 2; ++round) {
        for (int i = 1; i <= n; ++i) {
            if (vis[a[i]] == -1) { vis[a[i]] = seq.size(); seq.push_back(i << 1 | 0); } 
            else if (vis[b[i]] == -1) { vis[b[i]] = seq.size(); seq.push_back(i << 1 | 1); }
            else { loser = i; break; }
        }
        if (seq.size() != n) break;
    }
    // printf("loser: %d\n", loser);
    // for (auto x : seq) printf("%d %d\n", x >> 1, x & 1);
    // puts("");
    for (int i = 0; i < seq.size(); ++i) fa[i] = -1;
    for (int i = 0; i < (int)seq.size(); ++i) {
        int who = seq[i] >> 1, card = seq[i] & 1;
        if (card == 0) {
            if (vis[b[who]] == -1) fa[i] = -loser;
            else {
                int oth = seq[vis[b[who]]] >> 1, oth_card = seq[vis[b[who]]] & 1;
                if (oth_card == 1) {
                    // printf("Link0 %d %d\n", i, -oth);
                    fa[i] = -oth;
                } else if (vis[b[who]] < i) {
                    // printf("Link1 %d %d\n", i, -i);
                    fa[i] = -who;
                } else {
                    // printf("Link %d %d\n", i, vis[b[who]]);
                    fa[i] = vis[b[who]];
                }
            }
        }
    }
    // for (int i = 0; i < (int)seq.size(); ++i) printf("%d ", fa[i]);
    // puts("");
    for (int i = 1; i <= m; ++i) {
        if (vis[i] == -1) {
            ++ans[loser];
        } else {
            int who = seq[vis[i]] >> 1, card = seq[vis[i]] & 1;
            if (card == 1) ++ans[who];
            else {
                ++ans[-fa[Ask(vis[i])]];
            }
        }
    }
    for (int i = 1; i <= n; ++i) printf("%d\n", ans[i]);
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 8432kb

input:

3 6
1 2
2 4
4 2

output:

3
0
3

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 8152kb

input:

4 10
1 5
2 6
3 7
4 8

output:

4
2
2
2

result:

ok 4 lines

Test #3:

score: 0
Accepted
time: 2ms
memory: 7928kb

input:

1 2
1 2

output:

2

result:

ok single line: '2'

Test #4:

score: 0
Accepted
time: 17ms
memory: 8764kb

input:

69332 250102
51362 228823
206751 31351
181790 44202
186695 92215
172072 173179
86663 76959
42382 25827
204750 30001
42502 11959
201030 71886
227497 216114
164282 235028
178967 181951
125356 20611
169528 174071
50985 175562
63676 208400
189134 229462
49746 131529
180236 247427
29278 229589
30381 4412...

output:

197458
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0...

result:

ok 69332 lines

Test #5:

score: 0
Accepted
time: 15ms
memory: 9124kb

input:

80145 426253
421996 34366
346502 239646
343011 88629
67397 242186
299496 244930
21243 104718
387596 328535
219758 313693
75331 382300
313805 77098
42577 148653
337458 118115
214642 386869
250381 179903
371620 42703
175776 57872
382478 385425
67153 363632
137021 301439
54496 28984
416540 87624
180610...

output:

2
2
387645
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
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0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
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0
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0
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0
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0
0
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0
0
0
0
0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
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0
0
0
0
0
0
0
0
0...

result:

ok 80145 lines

Test #6:

score: -100
Wrong Answer
time: 16ms
memory: 9280kb

input:

100000 1000000
123135 548518
73705 792839
425849 331898
823140 91484
612409 674530
215766 587078
145133 904035
435464 107690
291461 358251
156778 270843
378425 339959
353997 687100
373365 903063
948343 203641
349073 91866
329756 348161
731516 202789
767371 938875
3496 388919
998073 384450
73693 8551...

output:

1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
956616
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
0
0
0
0
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0
0
0
0
0
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0
0
0
0
0
0
0
0
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0
0
0
0
0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0...

result:

wrong answer 1st lines differ - expected: '2', found: '1'