oj.uz

Submission #38486

# Submission time Handle Problem Language Result Execution time Memory
38486 2018-01-04T10:02:45 Z alenam0161 Marriage questions (IZhO14_marriage) C++14
48 / 100
 1500 ms 8908 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 1e5+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
48.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 7192 KB Output is correct
2 Correct 3 ms 7192 KB Output is correct
3 Correct 0 ms 7192 KB Output is correct
4 Correct 6 ms 7192 KB Output is correct
5 Correct 3 ms 7192 KB Output is correct
6 Correct 3 ms 7192 KB Output is correct
7 Correct 16 ms 7192 KB Output is correct
8 Correct 3 ms 7192 KB Output is correct
9 Correct 0 ms 7192 KB Output is correct
10 Correct 3 ms 7192 KB Output is correct
11 Correct 3 ms 7192 KB Output is correct
12 Correct 0 ms 7192 KB Output is correct
13 Correct 3 ms 7192 KB Output is correct
14 Correct 13 ms 7192 KB Output is correct
15 Correct 13 ms 7192 KB Output is correct
16 Correct 13 ms 7192 KB Output is correct
17 Correct 9 ms 7192 KB Output is correct
18 Correct 13 ms 7192 KB Output is correct
19 Correct 1093 ms 7192 KB Output is correct
20 Correct 1036 ms 7192 KB Output is correct
21 Correct 983 ms 7192 KB Output is correct
22 Correct 993 ms 7192 KB Output is correct
23 Correct 1076 ms 7192 KB Output is correct
24 Correct 1056 ms 7192 KB Output is correct
25 Execution timed out 1500 ms 7324 KB Execution timed out
26 Execution timed out 1500 ms 7192 KB Execution timed out
27 Execution timed out 1500 ms 7192 KB Execution timed out
28 Execution timed out 1500 ms 7192 KB Execution timed out
29 Execution timed out 1500 ms 7324 KB Execution timed out
30 Execution timed out 1500 ms 7324 KB Execution timed out
31 Execution timed out 1500 ms 7720 KB Execution timed out
32 Execution timed out 1500 ms 7324 KB Execution timed out
33 Execution timed out 1500 ms 7192 KB Execution timed out
34 Execution timed out 1500 ms 7192 KB Execution timed out
35 Execution timed out 1500 ms 8248 KB Execution timed out
36 Execution timed out 1500 ms 8248 KB Execution timed out
37 Execution timed out 1500 ms 7852 KB Execution timed out
38 Execution timed out 1500 ms 8512 KB Execution timed out
39 Execution timed out 1500 ms 7324 KB Execution timed out
40 Execution timed out 1500 ms 7456 KB Execution timed out
41 Execution timed out 1500 ms 7588 KB Execution timed out
42 Execution timed out 1500 ms 7720 KB Execution timed out
43 Execution timed out 1500 ms 7984 KB Execution timed out
44 Execution timed out 1500 ms 8380 KB Execution timed out
45 Execution timed out 1500 ms 7984 KB Execution timed out
46 Execution timed out 1500 ms 8776 KB Execution timed out
47 Execution timed out 1500 ms 8644 KB Execution timed out
48 Execution timed out 1500 ms 8644 KB Execution timed out
49 Execution timed out 1500 ms 8908 KB Execution timed out
50 Execution timed out 1500 ms 7324 KB Execution timed out