oj.uz

Submission #38516

# Submission time Handle Problem Language Result Execution time Memory
38516 2018-01-04T10:35:28 Z alenam0161 Marriage questions (IZhO14_marriage) C++14
60 / 100
 1500 ms 3108 KB 
#include <bits/stdc++.h>

using namespace std;

const int N = 7e2+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;
    int l=1;
    bool ok=false;
    for(int i=1;i<=n;++i){
        if(try_khun(i))how++;
        bool ok=false;
        while(how==m||ok==false){
            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);
            }
        }
        l--;
        memset(used,0,sizeof(used));
        how+=try_khun(l);
    //    cout<<l<<" "<<i<<" "<<how<<endl;
        if(how==m)
        ans+=l;
    }
    cout<<ans<<endl;
    return 0;
}

Compilation message

marriage.cpp: In function 'int main()':
marriage.cpp:33:10: warning: unused variable 'ok' [-Wunused-variable]
     bool ok=false;
          ^
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
60.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2052 KB Output is correct
2 Correct 0 ms 2052 KB Output is correct
3 Correct 0 ms 2052 KB Output is correct
4 Correct 0 ms 2052 KB Output is correct
5 Correct 0 ms 2052 KB Output is correct
6 Correct 0 ms 2052 KB Output is correct
7 Correct 0 ms 2052 KB Output is correct
8 Correct 0 ms 2052 KB Output is correct
9 Correct 0 ms 2052 KB Output is correct
10 Correct 0 ms 2052 KB Output is correct
11 Correct 0 ms 2052 KB Output is correct
12 Correct 0 ms 2052 KB Output is correct
13 Correct 0 ms 2052 KB Output is correct
14 Correct 0 ms 2052 KB Output is correct
15 Correct 0 ms 2052 KB Output is correct
16 Correct 0 ms 2052 KB Output is correct
17 Correct 0 ms 2052 KB Output is correct
18 Correct 0 ms 2052 KB Output is correct
19 Correct 0 ms 2052 KB Output is correct
20 Correct 0 ms 2052 KB Output is correct
21 Correct 0 ms 2052 KB Output is correct
22 Correct 0 ms 2052 KB Output is correct
23 Correct 3 ms 2052 KB Output is correct
24 Correct 0 ms 2052 KB Output is correct
25 Correct 23 ms 2184 KB Output is correct
26 Correct 43 ms 2052 KB Output is correct
27 Correct 3 ms 2052 KB Output is correct
28 Correct 13 ms 2052 KB Output is correct
29 Correct 619 ms 2184 KB Output is correct
30 Correct 523 ms 2184 KB Output is correct
31 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
32 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
33 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
34 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
35 Execution timed out 1500 ms 3108 KB Execution timed out
36 Execution timed out 1500 ms 3108 KB Execution timed out
37 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
38 Runtime error 3 ms 2580 KB Execution killed with signal 11 (could be triggered by violating memory limits)
39 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
40 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
41 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
42 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
43 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
44 Runtime error 0 ms 2184 KB Execution killed with signal 11 (could be triggered by violating memory limits)
45 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
46 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
47 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
48 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
49 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)
50 Runtime error 0 ms 2052 KB Execution killed with signal 11 (could be triggered by violating memory limits)