제출 #29344

#제출 시각아이디문제언어결과실행 시간메모리
29344khsoo01무제 (POI11_imp)C++11
100 / 100
1633 ms37296 KiB
#include<bits/stdc++.h>
using namespace std;
int n, m, adj[3005][3005];
bool d[3005];

int main()
{
	scanf("%d%d",&n,&m);
	for(int i=1;i<=m;i++) {
		int A, B;
		scanf("%d%d",&A,&B);
		adj[A][B] = adj[B][A] = 1;
	}
	for(int i=1;i<=n;i++) {
		for(int j=i+1;j<=n;j++) {
			if(adj[i][j]) continue;
			if(!d[i] && !d[j]) d[i] = d[j] = true;
		}
	}
	int c = 0;
	for(int i=1;i<=n && c < n/3;i++) {
		if(!d[i]) {printf("%d ",i); c++;}
	}
	puts("");
}

컴파일 시 표준 에러 (stderr) 메시지

imp.cpp: In function 'int main()':
imp.cpp:8:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
imp.cpp:11:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&A,&B);
                      ^
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