제출 #436986

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
436986		mostafa	Planinarenje (COCI18_planinarenje)	C++14	0 / 160	6 ms	3276 KiB

planinarenje

// in the name of GOD++
#include <bits/stdc++.h>

using namespace std;
#define ll long long
#define pii pair<int,int>
#define mpp make_pair
#define pb push_back
#define F first
#define S second
//#pragma GCC optimize("O2")

const int MX=5e4+10;
vector<int> adj[MX];
bool match1[MX];
int match2[MX];
bool mrk[MX];

bool dfs(int v)
{
    mrk[v]=1;
    for(int u:adj[v]){
        if(!match2[u]){
            match1[v]=u;
            match2[u]=v;
            return 1;
        }
    }
    for(int u:adj[v]){
        if(!mrk[match2[u]]&&dfs(match2[u])){
            match1[v]=u;
            match2[u]=v;
            return 1;
        }
    }
}

bool ans[MX];
void solve(int v)
{
    mrk[v]=1;
    ans[v]=1;
    for(int u:adj[v]){
        if(!mrk[match2[u]]) solve(match2[u]);
    }
}

int main()
{
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n,m;
    cin>>n>>m;
    for(int i=0;i<m;i++){
        int v,u;
        cin>>v>>u;
        adj[v].pb(u);
    }
    int fnd=1;
    while(fnd){
        fnd=0;
        fill(mrk,mrk+n+2,0);
        for(int i=1;i<=n;i++){
            if((!mrk[i])&&(!match1[i])&&dfs(i)){
                fnd=1;
            }
        }
    }
    fill(mrk,mrk+n+2,0);
    for(int i=1;i<=n;i++){
        if(!match1[i]) solve(i);
    }
    for(int i=1;i<=n;i++){
        if(ans[i]) cout<<"Mirko"<<endl;
        else cout<<"Slavko"<<endl;
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

planinarenje.cpp: In function 'bool dfs(int)':
planinarenje.cpp:36:1: warning: control reaches end of non-void function [-Wreturn-type]
   36 | }
      | ^

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