oj.uz

Submission #38491

# Submission time Handle Problem Language Result Execution time Memory
38491 2018-01-04T10:05:08 Z alenam0161 Marriage questions (IZhO14_marriage) C++14
50 / 100
 1500 ms 2700 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 5e2+7;
vector<int> g[N],g1[N];
int n,m,k;
bool used[N];
int ma[N];
bool try_khun(int v){
    if(used[v]==true)return false;
    used[v]=true;
    for(auto to:g[v]){
        if(ma[to]==-1||try_khun(ma[to])){
            ma[to]=v;
            return true;
        }
    }
    return false;
}
int main(){
    memset(ma,-1,sizeof(ma));
    scanf("%d%d%d",&n,&m,&k);
    for(int i=1;i<=k;++i){
        int u,v;
        scanf("%d%d",&v,&u);
        g[v].push_back(u);
        g1[u].push_back(v);
    }
    int how=0;
    long long ans=0;
    for(int l=1;l<=n;++l)
    for(int r=l;r<=n;++r){
            how=0;
            memset(ma,-1,sizeof(ma));
            for(int j=l;j<=r;++j){
                memset(used,0,sizeof(used));
                how+=try_khun(j);
            }
            if(how==m)ans++;
    }
    cout<<ans<<endl;
    return 0;
}

Compilation message

marriage.cpp: In function 'int main()':
marriage.cpp:23:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d",&n,&m,&k);
                             ^
marriage.cpp:26:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&v,&u);
                            ^

Subtask #1
50.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2040 KB Output is correct
2 Correct 0 ms 2040 KB Output is correct
3 Correct 0 ms 2040 KB Output is correct
4 Correct 0 ms 2040 KB Output is correct
5 Correct 0 ms 2040 KB Output is correct
6 Correct 0 ms 2040 KB Output is correct
7 Correct 0 ms 2040 KB Output is correct
8 Correct 0 ms 2040 KB Output is correct
9 Correct 0 ms 2040 KB Output is correct
10 Correct 0 ms 2040 KB Output is correct
11 Correct 0 ms 2040 KB Output is correct
12 Correct 0 ms 2040 KB Output is correct
13 Correct 0 ms 2040 KB Output is correct
14 Correct 0 ms 2040 KB Output is correct
15 Correct 0 ms 2040 KB Output is correct
16 Correct 0 ms 2040 KB Output is correct
17 Correct 0 ms 2040 KB Output is correct
18 Correct 0 ms 2040 KB Output is correct
19 Correct 133 ms 2040 KB Output is correct
20 Correct 46 ms 2040 KB Output is correct
21 Correct 9 ms 2040 KB Output is correct
22 Correct 26 ms 2040 KB Output is correct
23 Correct 99 ms 2040 KB Output is correct
24 Correct 59 ms 2040 KB Output is correct
25 Execution timed out 1500 ms 2172 KB Execution timed out
26 Execution timed out 1500 ms 2040 KB Execution timed out
27 Correct 1259 ms 2040 KB Output is correct
28 Execution timed out 1500 ms 2040 KB Execution timed out
29 Execution timed out 1500 ms 2172 KB Execution timed out
30 Execution timed out 1500 ms 2172 KB Execution timed out
31 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
32 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
33 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
34 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
35 Runtime error 23 ms 2700 KB Execution killed with signal 11 (could be triggered by violating memory limits)
36 Runtime error 13 ms 2700 KB Execution killed with signal 11 (could be triggered by violating memory limits)
37 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
38 Runtime error 6 ms 2436 KB Execution killed with signal 11 (could be triggered by violating memory limits)
39 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
40 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
41 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
42 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
43 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
44 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
45 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
46 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
47 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
48 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
49 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)
50 Runtime error 0 ms 2040 KB Execution killed with signal 11 (could be triggered by violating memory limits)