Submission #1093577

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Source Code Expand

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<vector>
#include<algorithm>
#include<queue>
using namespace std;
int main(void){
	long long a[100001];
	int b[100000];
	for (int i = 0; i < 100000; i++){
		a[i] = 0;
		b[i] = 0;
	}
	long long c;
	long long k;
	long long s;
	int p, q;
	long long n, m;
	long long x, y, z;
	c = 0;
	s = 0;
	q = 0;
	scanf("%lld", &n);
	for (int i = 0; i < n; i++){
		scanf("%lld", &a[i]);
		s = s + a[i];
	}
	s = s * 2;
	if (s%n != 0)q = 1;
	s = s / n;
	if (s % (n + 1) != 0)q = 1;
	s = s / (n + 1);
	a[n] = a[0];
	k = s;
	for (int i = 0; i < n; i++){
		if (a[i + 1] - a[i] < 0){
			x = a[i] - a[i+1];
			y = x / n;
			y++;
			z = x%n;
			z = (n - z) % n;
			c = c + y;
			if (z != (k%n))q = 1;
		}
		else{
			if (a[i + 1] - a[i] > k)q = 1;
			if (a[i + 1] - a[i] != (k%n))q = 1;
		}
	}

	if (s != c)q = 1;
	if (q==1)	printf("NO\n");
	else	printf("YES\n");

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:24:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &n);
                   ^
./Main.cpp:26:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &a[i]);
                       ^

Judge Result