oj.uz

Submission #56493

# Submission time Handle Problem Language Result Execution time Memory
56493 2018-07-11T13:24:52 Z red1108 None (KOI17_cat) C++17
45 / 100
 542 ms 263168 KB 
#include <stdio.h>
#include <algorithm>
#include <vector>
typedef long long ll;
using namespace std;
vector<int> graph[300010];
int visit[300010], comp[300010],link[300010];
int n, m,vcnt;
int dfs(int now, int from)
{
    int cmp=1,ret,child=0;
    ret=visit[now]=++vcnt;
    for(auto i:graph[now])
    {
        if(i==from) continue;
        if(!visit[i])
        {
            int df;
            df=dfs(i,now);
            if(df>=visit[now]) cmp++;
            ret=min(ret,df);
            child++;
        }
        else ret=min(ret,visit[i]);
    }
    if(from==0) cmp=child;
    comp[now]=cmp;
    return ret;
}
int main()
{
    scanf("%d %d", &n, &m);
    for(int i=1;i<=m;i++)
    {
        int a, b;
        scanf("%d %d", &a, &b);
        graph[a].push_back(b);
        graph[b].push_back(a);
        link[a]++,link[b]++;
    }
    dfs(1,0);
    ll ans=0;
    for(int i=1;i<=n;i++)
    {
        if(m-link[i]==n-comp[i]-1) ans+=i;
    }
    printf("%lld", ans);
}

Compilation message

cat.cpp: In function 'int main()':
cat.cpp:32:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
cat.cpp:36:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &a, &b);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7288 KB Output is correct
2 Correct 9 ms 7400 KB Output is correct
3 Correct 7 ms 7512 KB Output is correct
4 Correct 7 ms 7512 KB Output is correct
5 Correct 11 ms 7924 KB Output is correct
6 Correct 13 ms 7968 KB Output is correct
7 Correct 11 ms 8248 KB Output is correct
8 Correct 13 ms 8264 KB Output is correct
9 Correct 12 ms 8492 KB Output is correct
10 Correct 11 ms 8492 KB Output is correct
11 Correct 11 ms 8588 KB Output is correct
12 Correct 12 ms 8640 KB Output is correct
13 Correct 11 ms 8648 KB Output is correct
14 Correct 11 ms 8648 KB Output is correct
15 Correct 9 ms 8648 KB Output is correct
16 Correct 8 ms 8648 KB Output is correct
17 Correct 8 ms 8648 KB Output is correct
18 Correct 9 ms 8648 KB Output is correct
19 Correct 8 ms 8648 KB Output is correct
20 Correct 12 ms 8840 KB Output is correct
21 Correct 17 ms 8900 KB Output is correct
22 Correct 13 ms 8972 KB Output is correct
23 Correct 12 ms 8972 KB Output is correct
24 Correct 13 ms 8972 KB Output is correct
25 Correct 10 ms 8972 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 408 ms 25740 KB Output is correct
2 Correct 368 ms 29652 KB Output is correct
3 Correct 378 ms 33384 KB Output is correct
4 Correct 345 ms 37384 KB Output is correct
5 Correct 411 ms 41212 KB Output is correct
6 Correct 384 ms 45240 KB Output is correct
7 Correct 353 ms 49112 KB Output is correct
8 Correct 412 ms 52992 KB Output is correct
9 Correct 389 ms 57016 KB Output is correct
10 Correct 361 ms 60912 KB Output is correct
11 Correct 414 ms 65312 KB Output is correct
12 Correct 385 ms 69152 KB Output is correct
13 Correct 371 ms 73000 KB Output is correct
14 Correct 460 ms 76968 KB Output is correct
15 Correct 394 ms 80816 KB Output is correct
16 Correct 343 ms 89384 KB Output is correct
17 Correct 363 ms 94232 KB Output is correct
18 Correct 392 ms 96088 KB Output is correct
19 Correct 411 ms 101012 KB Output is correct
20 Correct 495 ms 103752 KB Output is correct
21 Correct 428 ms 106172 KB Output is correct
22 Correct 333 ms 118856 KB Output is correct
23 Correct 359 ms 125528 KB Output is correct
24 Correct 411 ms 125528 KB Output is correct
25 Correct 378 ms 132212 KB Output is correct
26 Correct 161 ms 146320 KB Output is correct

Subtask #3
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 150104 KB Output is correct
2 Correct 189 ms 154040 KB Output is correct
3 Correct 182 ms 157912 KB Output is correct
4 Correct 173 ms 161800 KB Output is correct
5 Correct 216 ms 165720 KB Output is correct
6 Correct 161 ms 169592 KB Output is correct
7 Correct 209 ms 173624 KB Output is correct
8 Correct 150 ms 177384 KB Output is correct
9 Correct 174 ms 181452 KB Output is correct
10 Correct 188 ms 181452 KB Output is correct
11 Correct 200 ms 183480 KB Output is correct
12 Correct 194 ms 187180 KB Output is correct
13 Correct 175 ms 190988 KB Output is correct
14 Correct 177 ms 195044 KB Output is correct
15 Correct 226 ms 195044 KB Output is correct
16 Correct 231 ms 196432 KB Output is correct
17 Correct 242 ms 200344 KB Output is correct
18 Correct 181 ms 204080 KB Output is correct
19 Correct 192 ms 207864 KB Output is correct

Subtask #4
0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7288 KB Output is correct
2 Correct 9 ms 7400 KB Output is correct
3 Correct 7 ms 7512 KB Output is correct
4 Correct 7 ms 7512 KB Output is correct
5 Correct 11 ms 7924 KB Output is correct
6 Correct 13 ms 7968 KB Output is correct
7 Correct 11 ms 8248 KB Output is correct
8 Correct 13 ms 8264 KB Output is correct
9 Correct 12 ms 8492 KB Output is correct
10 Correct 11 ms 8492 KB Output is correct
11 Correct 11 ms 8588 KB Output is correct
12 Correct 12 ms 8640 KB Output is correct
13 Correct 11 ms 8648 KB Output is correct
14 Correct 11 ms 8648 KB Output is correct
15 Correct 9 ms 8648 KB Output is correct
16 Correct 8 ms 8648 KB Output is correct
17 Correct 8 ms 8648 KB Output is correct
18 Correct 9 ms 8648 KB Output is correct
19 Correct 8 ms 8648 KB Output is correct
20 Correct 12 ms 8840 KB Output is correct
21 Correct 17 ms 8900 KB Output is correct
22 Correct 13 ms 8972 KB Output is correct
23 Correct 12 ms 8972 KB Output is correct
24 Correct 13 ms 8972 KB Output is correct
25 Correct 10 ms 8972 KB Output is correct
26 Correct 408 ms 25740 KB Output is correct
27 Correct 368 ms 29652 KB Output is correct
28 Correct 378 ms 33384 KB Output is correct
29 Correct 345 ms 37384 KB Output is correct
30 Correct 411 ms 41212 KB Output is correct
31 Correct 384 ms 45240 KB Output is correct
32 Correct 353 ms 49112 KB Output is correct
33 Correct 412 ms 52992 KB Output is correct
34 Correct 389 ms 57016 KB Output is correct
35 Correct 361 ms 60912 KB Output is correct
36 Correct 414 ms 65312 KB Output is correct
37 Correct 385 ms 69152 KB Output is correct
38 Correct 371 ms 73000 KB Output is correct
39 Correct 460 ms 76968 KB Output is correct
40 Correct 394 ms 80816 KB Output is correct
41 Correct 343 ms 89384 KB Output is correct
42 Correct 363 ms 94232 KB Output is correct
43 Correct 392 ms 96088 KB Output is correct
44 Correct 411 ms 101012 KB Output is correct
45 Correct 495 ms 103752 KB Output is correct
46 Correct 428 ms 106172 KB Output is correct
47 Correct 333 ms 118856 KB Output is correct
48 Correct 359 ms 125528 KB Output is correct
49 Correct 411 ms 125528 KB Output is correct
50 Correct 378 ms 132212 KB Output is correct
51 Correct 161 ms 146320 KB Output is correct
52 Correct 172 ms 150104 KB Output is correct
53 Correct 189 ms 154040 KB Output is correct
54 Correct 182 ms 157912 KB Output is correct
55 Correct 173 ms 161800 KB Output is correct
56 Correct 216 ms 165720 KB Output is correct
57 Correct 161 ms 169592 KB Output is correct
58 Correct 209 ms 173624 KB Output is correct
59 Correct 150 ms 177384 KB Output is correct
60 Correct 174 ms 181452 KB Output is correct
61 Correct 188 ms 181452 KB Output is correct
62 Correct 200 ms 183480 KB Output is correct
63 Correct 194 ms 187180 KB Output is correct
64 Correct 175 ms 190988 KB Output is correct
65 Correct 177 ms 195044 KB Output is correct
66 Correct 226 ms 195044 KB Output is correct
67 Correct 231 ms 196432 KB Output is correct
68 Correct 242 ms 200344 KB Output is correct
69 Correct 181 ms 204080 KB Output is correct
70 Correct 192 ms 207864 KB Output is correct
71 Correct 475 ms 221752 KB Output is correct
72 Correct 439 ms 223788 KB Output is correct
73 Correct 509 ms 226940 KB Output is correct
74 Correct 469 ms 232796 KB Output is correct
75 Correct 411 ms 233524 KB Output is correct
76 Correct 380 ms 237044 KB Output is correct
77 Correct 373 ms 237044 KB Output is correct
78 Correct 394 ms 239708 KB Output is correct
79 Correct 473 ms 252700 KB Output is correct
80 Correct 542 ms 252700 KB Output is correct
81 Correct 463 ms 253280 KB Output is correct
82 Runtime error 494 ms 263168 KB Memory limit exceeded 263168 {'time-wall': '0.569', 'max-rss': '42200', 'csw-forced': '113', 'cg-mem': '263168', 'time': '0.494', 'csw-voluntary': '4'} 262144
83 Halted 0 ms 0 KB -