제출 #169996

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
169996		darklight256	Planinarenje (COCI18_planinarenje)	C++14	0 / 160	8 ms	632 KiB

planinarenje

//
//  fstmm.cpp
//  Code
//
//  Created by Mohammadreza Raddanipour on 12/23/19.
//  Copyright © 2019 Mohammadreza Raddanipour. All rights reserved.
//

#include <bits/stdc++.h>
using namespace std;

const int MXN = 5e3 + 20;

int n, m, mch[MXN];
vector<int> adj[MXN];
bool mchd[MXN], vs[MXN];

void npt() {
    cin >> n >> m;
    for (int i = 0; i < m; i++) {
        int u, v;
        cin >> u >> v;
        adj[--u].push_back(--v);
    }
}

bool dfs(int v) {
    vs[v] = 1;
    for (auto u: adj[v])
        if (mch[v] == -1 || (!vs[mch[u]]) && dfs(mch[u])) {
            mch[u] = v;
            mchd[v] = 1;
            return 1;
        }
    return 0;
}

void mm() {
    for (bool flg = 1; flg; memset(vs, 0, sizeof vs)) {
        flg = 0;
        for (int i = 0; i < n; i++)
            if (!vs[i] && !mchd[i])
                flg |= dfs(i);
    }
}

int main() {
    memset(mch, -1, sizeof mch);
    npt();
    mm();
    for (int i = 0; i < n; i++)
        if (!vs[i])
            cout << "Slavko\n";
        else
            cout << "Mirko\n";
}

컴파일 시 표준 에러 (stderr) 메시지

planinarenje.cpp: In function 'bool dfs(int)':
planinarenje.cpp:30:43: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
         if (mch[v] == -1 || (!vs[mch[u]]) && dfs(mch[u])) {
                             ~~~~~~~~~~~~~~^~~~~~~~~~~~~~

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