oj.uz

Submission #90021

# Submission time Handle Problem Language Result Execution time Memory
90021 2018-12-19T17:40:59 Z Bodo171 Marriage questions (IZhO14_marriage) C++14
80 / 100
 1500 ms 12316 KB 
#include <iostream>
#include <fstream>
#include <vector>
using namespace std;
const int nmax=30005;
vector<int> v[nmax];
int l[nmax],r[nmax];
bool viz[nmax];
bool changed;
int n,m,i,j,k,a,b,p,cupl,ans;
bool cup(int x)
{
    if(viz[x])
        return 0;
    viz[x]=1;
    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)
    {
        changed=0;
        for(j=p; j<=i; j++)
            if((!l[j])&&cup(j))
            {
                cupl++;
                changed=1;
            }
        for(j=p; j<=i; j++)
            viz[j]=0;

    }
}
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++)
    {
        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 1144 KB Output is correct
3 Correct 3 ms 1144 KB Output is correct
4 Correct 3 ms 1148 KB Output is correct
5 Correct 3 ms 1280 KB Output is correct
6 Correct 3 ms 1480 KB Output is correct
7 Correct 3 ms 1480 KB Output is correct
8 Correct 3 ms 1480 KB Output is correct
9 Correct 3 ms 1480 KB Output is correct
10 Correct 3 ms 1480 KB Output is correct
11 Correct 3 ms 1480 KB Output is correct
12 Correct 3 ms 1480 KB Output is correct
13 Correct 3 ms 1480 KB Output is correct
14 Correct 3 ms 1480 KB Output is correct
15 Correct 3 ms 1576 KB Output is correct
16 Correct 3 ms 1576 KB Output is correct
17 Correct 3 ms 1576 KB Output is correct
18 Correct 3 ms 1576 KB Output is correct
19 Correct 5 ms 1576 KB Output is correct
20 Correct 3 ms 1576 KB Output is correct
21 Correct 3 ms 1576 KB Output is correct
22 Correct 2 ms 1576 KB Output is correct
23 Correct 3 ms 1576 KB Output is correct
24 Correct 3 ms 1576 KB Output is correct
25 Correct 6 ms 1780 KB Output is correct
26 Correct 7 ms 1780 KB Output is correct
27 Correct 4 ms 1780 KB Output is correct
28 Correct 4 ms 1780 KB Output is correct
29 Correct 25 ms 1780 KB Output is correct
30 Correct 20 ms 1848 KB Output is correct
31 Correct 17 ms 2416 KB Output is correct
32 Correct 31 ms 2416 KB Output is correct
33 Correct 7 ms 2416 KB Output is correct
34 Correct 7 ms 2416 KB Output is correct
35 Correct 26 ms 3500 KB Output is correct
36 Correct 21 ms 4128 KB Output is correct
37 Correct 38 ms 4500 KB Output is correct
38 Correct 1016 ms 5804 KB Output is correct
39 Correct 289 ms 5804 KB Output is correct
40 Correct 1252 ms 5804 KB Output is correct
41 Execution timed out 1561 ms 5804 KB Time limit exceeded
42 Execution timed out 1574 ms 6168 KB Time limit exceeded
43 Execution timed out 1575 ms 6656 KB Time limit exceeded
44 Execution timed out 1562 ms 7784 KB Time limit exceeded
45 Execution timed out 1563 ms 7992 KB Time limit exceeded
46 Execution timed out 1569 ms 9048 KB Time limit exceeded
47 Execution timed out 1566 ms 10196 KB Time limit exceeded
48 Execution timed out 1566 ms 11048 KB Time limit exceeded
49 Execution timed out 1558 ms 12316 KB Time limit exceeded
50 Execution timed out 1543 ms 12316 KB Time limit exceeded