oj.uz

Submission #90025

# Submission time Handle Problem Language Result Execution time Memory
90025 2018-12-19T17:51:12 Z Bodo171 Marriage questions (IZhO14_marriage) C++14
80 / 100
 1500 ms 2684 KB 
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
const int nmax=30005;
vector<int> v[nmax];
int l[nmax],r[nmax];
int viz[nmax];
bool changed;
int n,m,i,j,k,a,b,p,cupl,ans,its;
bool cup(int x)
{
    if(viz[x]==its)
        return 0;
    viz[x]=its;
    for(int it=0;it<v[x].size();it++)
        if(!r[v[x][it]])
    {
        l[x]=v[x][it];
        r[v[x][it]]=x;
        return 1;
    }
    for(int it=0;it<v[x].size();it++)
        if(cup(r[v[x][it]]))
    {
        l[x]=v[x][it];
        r[v[x][it]]=x;
        return 1;
    }
    return 0;
}
void cc()
{
    changed=1;
    while(changed&&cupl<m)
    {
        changed=0;its++;
        for(j=p; j<=i; j++)
            if((!l[j])&&cup(j))
            {
                cupl++;
                changed=1;
            }

    }
}
int main()
{
    //freopen("data.in","r",stdin);
    ios_base::sync_with_stdio(false);
    cin>>n>>m>>k;
    for(i=1;i<=k;i++)
    {
        cin>>a>>b;
        v[a].push_back(b);
    }
    p=1;
    for(i=1;i<=n;i++)
    {
        if(i>=m)cc();
        while(cupl==m)
        {
            if(l[p])
                r[l[p]]=0,cupl--;
            p++;
            cc();

        }
        ans+=(p-1);
    }
    cout<<ans;
    return 0;
}

Compilation message

marriage.cpp: In function 'bool cup(int)':
marriage.cpp:16:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int it=0;it<v[x].size();it++)
                  ~~^~~~~~~~~~~~
marriage.cpp:23:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int it=0;it<v[x].size();it++)
                  ~~^~~~~~~~~~~~

Subtask #1
80.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1016 KB Output is correct
2 Correct 3 ms 1160 KB Output is correct
3 Correct 3 ms 1160 KB Output is correct
4 Correct 3 ms 1224 KB Output is correct
5 Correct 3 ms 1240 KB Output is correct
6 Correct 3 ms 1240 KB Output is correct
7 Correct 3 ms 1240 KB Output is correct
8 Correct 3 ms 1240 KB Output is correct
9 Correct 3 ms 1240 KB Output is correct
10 Correct 3 ms 1240 KB Output is correct
11 Correct 3 ms 1240 KB Output is correct
12 Correct 3 ms 1240 KB Output is correct
13 Correct 3 ms 1240 KB Output is correct
14 Correct 3 ms 1240 KB Output is correct
15 Correct 3 ms 1240 KB Output is correct
16 Correct 3 ms 1260 KB Output is correct
17 Correct 3 ms 1260 KB Output is correct
18 Correct 3 ms 1320 KB Output is correct
19 Correct 3 ms 1320 KB Output is correct
20 Correct 4 ms 1336 KB Output is correct
21 Correct 3 ms 1336 KB Output is correct
22 Correct 3 ms 1336 KB Output is correct
23 Correct 3 ms 1336 KB Output is correct
24 Correct 3 ms 1336 KB Output is correct
25 Correct 5 ms 1416 KB Output is correct
26 Correct 5 ms 1416 KB Output is correct
27 Correct 4 ms 1416 KB Output is correct
28 Correct 3 ms 1416 KB Output is correct
29 Correct 22 ms 1416 KB Output is correct
30 Correct 18 ms 1416 KB Output is correct
31 Correct 14 ms 1508 KB Output is correct
32 Correct 24 ms 1508 KB Output is correct
33 Correct 6 ms 1508 KB Output is correct
34 Correct 5 ms 1508 KB Output is correct
35 Correct 22 ms 1760 KB Output is correct
36 Correct 20 ms 1760 KB Output is correct
37 Correct 28 ms 1760 KB Output is correct
38 Correct 824 ms 2016 KB Output is correct
39 Correct 202 ms 2016 KB Output is correct
40 Correct 1248 ms 2016 KB Output is correct
41 Execution timed out 1549 ms 2016 KB Time limit exceeded
42 Execution timed out 1561 ms 2156 KB Time limit exceeded
43 Execution timed out 1564 ms 2156 KB Time limit exceeded
44 Execution timed out 1570 ms 2156 KB Time limit exceeded
45 Execution timed out 1563 ms 2176 KB Time limit exceeded
46 Execution timed out 1567 ms 2684 KB Time limit exceeded
47 Execution timed out 1565 ms 2684 KB Time limit exceeded
48 Execution timed out 1564 ms 2684 KB Time limit exceeded
49 Execution timed out 1566 ms 2684 KB Time limit exceeded
50 Execution timed out 1532 ms 2684 KB Time limit exceeded