Submission #553026

#	Time	Username	Problem	Language	Result	Execution time	Memory
553026		Pherokung	Newspapers (CEOI21_newspapers)	C++14	0 / 100	1 ms	300 KiB

newspapers

#include<bits/stdc++.h>
using namespace std;
int n,m,u,v,hsh[1005];
int main(){
	scanf("%d%d",&n,&m);
	for(int i=1;i<=m;i++){
		scanf("%d%d",&u,&v);
		hsh[u]++, hsh[v]++;
	}
	for(int i=1;i<=n;i++){
		if(hsh[i] == n-1){
			printf("YES\n2\n%d %d",i,i);
			return 0;
		}
	}
	printf("NO");
}

Compilation message (stderr)

newspapers.cpp: In function 'int main()':
newspapers.cpp:5:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    5 |  scanf("%d%d",&n,&m);
      |  ~~~~~^~~~~~~~~~~~~~
newspapers.cpp:7:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |   scanf("%d%d",&u,&v);
      |   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 0 / 12
• Subtask 2: 0 / 8
• Subtask 3: 0 / 80