Submission #1707741
Source Code Expand
#include <cstdio> typedef long long lint; int const N=1e5+10; int n,a[N]; lint dif[N]; int main() { scanf("%d",&n); if(n==1) {printf("YES"); return 0;} for(int i=1;i<=n;i++) scanf("%d",&a[i]); lint s=n*(n+1)>>1,sum=0; for(int i=1;i<=n;i++) sum+=a[i],dif[i]=a[i+1]-a[i]; if(sum%s!=0) {printf("NO"); return 0;} lint k=sum/s,a1=0,sumX=0; for(int i=1;i<=n-1;i++) { lint x=(k-dif[i])/n; if(x*n!=k-dif[i]) {printf("NO"); return 0;} a1+=(n+1-i)*x; sumX+=x; } if(sumX>k || a1+(k-sumX)!=a[1]) {printf("NO"); return 0;} printf("YES"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | vjudge2 |
Language | Bash (GNU bash v4.3.11) |
Score | 0 |
Code Size | 555 Byte |
Status | RE |
Exec Time | 4 ms |
Memory | 560 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in3.txt, in4.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | RE | 4 ms | 548 KB |
in10.txt | RE | 3 ms | 552 KB |
in11.txt | RE | 3 ms | 548 KB |
in12.txt | RE | 3 ms | 560 KB |
in13.txt | RE | 3 ms | 552 KB |
in14.txt | RE | 3 ms | 560 KB |
in15.txt | RE | 3 ms | 552 KB |
in16.txt | RE | 3 ms | 552 KB |
in17.txt | RE | 3 ms | 552 KB |
in18.txt | RE | 3 ms | 552 KB |
in19.txt | RE | 3 ms | 552 KB |
in2.txt | RE | 3 ms | 548 KB |
in20.txt | RE | 3 ms | 552 KB |
in21.txt | RE | 3 ms | 560 KB |
in22.txt | RE | 3 ms | 560 KB |
in23.txt | RE | 3 ms | 552 KB |
in24.txt | RE | 3 ms | 560 KB |
in25.txt | RE | 3 ms | 560 KB |
in26.txt | RE | 3 ms | 552 KB |
in27.txt | RE | 3 ms | 560 KB |
in3.txt | RE | 3 ms | 560 KB |
in4.txt | RE | 3 ms | 552 KB |
in5.txt | RE | 3 ms | 552 KB |
in6.txt | RE | 3 ms | 552 KB |
in7.txt | RE | 3 ms | 548 KB |
in8.txt | RE | 3 ms | 552 KB |
in9.txt | RE | 3 ms | 560 KB |
sample1.txt | RE | 3 ms | 552 KB |
sample2.txt | RE | 3 ms | 560 KB |
sample3.txt | RE | 3 ms | 548 KB |