oj.uz

Submission #38483

# Submission time Handle Problem Language Result Execution time Memory
38483 2018-01-04T09:58:11 Z alenam0161 Marriage questions (IZhO14_marriage) C++14
40 / 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 l=1;
    int how=0;
    long long ans=0;
    for(int i=1;i<=n;++i){
        if(try_khun(i))how++;
        bool ok=false;
        while(how>=m){
            l++;
            ok=true;
            how=0;
            memset(ma,-1,sizeof(ma));
            for(int j=l;j<=i;++j){
                memset(used,0,sizeof(used));
                how+=try_khun(j);
            }
        }
        if(ok){
            l--;
            how=0;
            memset(ma,-1,sizeof(ma));
            for(int j=l;j<=i;++j){
                memset(used,0,sizeof(used));
                how+=try_khun(j);
            }
        }
        if(how==m)ans+=l;
     //   cout<<how<<" "<<i<<" "<<l<<endl;
    }
    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
40.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 7192 KB Output is correct
2 Correct 0 ms 7192 KB Output is correct
3 Incorrect 0 ms 7192 KB Output isn't correct
4 Incorrect 0 ms 7192 KB Output isn't correct
5 Correct 0 ms 7192 KB Output is correct
6 Correct 0 ms 7192 KB Output is correct
7 Incorrect 3 ms 7192 KB Output isn't correct
8 Correct 0 ms 7192 KB Output is correct
9 Correct 0 ms 7192 KB Output is correct
10 Correct 0 ms 7192 KB Output is correct
11 Incorrect 0 ms 7192 KB Output isn't correct
12 Correct 0 ms 7192 KB Output is correct
13 Correct 3 ms 7192 KB Output is correct
14 Correct 6 ms 7192 KB Output is correct
15 Incorrect 3 ms 7192 KB Output isn't correct
16 Incorrect 0 ms 7192 KB Output isn't correct
17 Correct 6 ms 7192 KB Output is correct
18 Correct 0 ms 7192 KB Output is correct
19 Incorrect 39 ms 7192 KB Output isn't correct
20 Incorrect 43 ms 7192 KB Output isn't correct
21 Correct 0 ms 7192 KB Output is correct
22 Incorrect 3 ms 7192 KB Output isn't correct
23 Correct 43 ms 7192 KB Output is correct
24 Correct 43 ms 7192 KB Output is correct
25 Incorrect 669 ms 7324 KB Output isn't correct
26 Incorrect 696 ms 7192 KB Output isn't correct
27 Correct 0 ms 7192 KB Output is correct
28 Incorrect 0 ms 7192 KB Output isn't correct
29 Correct 1269 ms 7324 KB Output is correct
30 Correct 1163 ms 7324 KB Output is correct
31 Execution timed out 1500 ms 7720 KB Execution timed out
32 Incorrect 0 ms 7324 KB Output isn't correct
33 Correct 0 ms 7192 KB Output is correct
34 Incorrect 3 ms 7192 KB Output isn't correct
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 Incorrect 9 ms 7324 KB Output isn't correct
40 Correct 9 ms 7456 KB Output is correct
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 Incorrect 0 ms 7324 KB Output isn't correct