Submission #1092459

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Source Code Expand

#include <bits/stdc++.h>
#define X first
#define Y second
#define mp make_pair
using namespace std;
typedef pair<int,int> PII;
typedef long long ll;

const int N = 100010;
int n,a[N];
int main(){
	scanf("%d",&n);
	ll sum  =0;
	for(int i =0;i<n;i++) scanf("%d",a+i),sum+=a[i];
	ll t =0;
	for(int i =0;i<n;i++) t+=a[(i+1)%n]-a[i];
	if(t==0 && sum%(1ll*(1+n)*n/2)==0) puts("YES"); else puts("NO");
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:12:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
./Main.cpp:14:49: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  for(int i =0;i<n;i++) scanf("%d",a+i),sum+=a[i];
                                                 ^

Judge Result