Submission #1093237

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Source Code Expand

#include <cstdio>
#include <cstring>
#include <algorithm>
using namespace std;
const int N=200010;
long long A[N],B[N],s; 
int n;
void solve(){
    s=0;
    for(int i=0;i<n;i++)scanf("%lld",&A[i]),s+=A[i];
    for(int i=0;i<n-1;i++)B[i]=A[i+1]-A[i];
    B[n-1]=A[0]-A[n-1];
    long long t=(long long)n*(n+1)/2;
    if(s%t){puts("NO");return;}
    s/=t; long long cnt=0;
    for(int i=0;i<n;i++){
        if((s-B[i])%n||s-B[i]<0){puts("NO");return;}
        cnt+=(s-B[i])/n;
    }if(cnt!=s){puts("NO");return;}
    puts("YES");
}
int main(){
    while(~scanf("%d",&n))solve();
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘void solve()’:
./Main.cpp:10:52: 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("%lld",&A[i]),s+=A[i];
                                                    ^

Judge Result