Submission #6371663

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Source Code Expand

#include<bits/stdc++.h>
#define N 100010
#define ll long long
using namespace std;
int a[N];
int main(){
	int n;
	scanf("%d",&n);
	for(int i=1;i<=n;i++)scanf("%d",&a[i]);
	if(n%3==0){
		sort(a+1,a+n+1);
		int num=1;
		for(int i=2;i<=n;i++){
			if(a[i]!=a[i-1]){
				if(num!=n/3)return 0*printf("No\n");
				num=1;
			}
			else num++;
		}
		printf("Yes\n");
	}
	else {
		for(int i=1;i<=n;i++)if(a[i]!=0)return 0*printf("No\n");
		printf("Yes\n");
	}
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:9:40: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1;i<=n;i++)scanf("%d",&a[i]);
                                        ^

Judge Result