Submission #1697721
Source Code Expand
#include<cstdio> #include<cstring> #include<algorithm> #define ll long long #define N 100010 using namespace std; int n, w[N]; ll s, m, x, y, a[N]; int main(){ scanf("%d", &n); for(int i=1; i<=n; i++)scanf("%d", &w[i]); if(n==1){printf("YES"); return 0;} s=0; for(int i=1; i<=n; i++)s+=w[i]; m=(ll)n*(n+1)/2; if(s%m){printf("NO"); return 0;} x=s/m; w[n+1]=w[1]; for(int i=1; i<=n; i++){ y=w[i+1]-w[i]-x; if(y>=1||y%n){printf("NO"); return 0;} a[i+1]=-y/n; } a[1]=a[n+1]; s=0; for(int i=1; i<=n; i++)s+=a[i]; if(s!=x)printf("NO"); else printf("YES"); return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | leoly |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 603 Byte |
Status | AC |
Exec Time | 14 ms |
Memory | 1280 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:10:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:11:43: 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", &w[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
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 | AC | 13 ms | 1280 KB |
in10.txt | AC | 2 ms | 256 KB |
in11.txt | AC | 12 ms | 512 KB |
in12.txt | AC | 12 ms | 512 KB |
in13.txt | AC | 10 ms | 512 KB |
in14.txt | AC | 1 ms | 128 KB |
in15.txt | AC | 1 ms | 128 KB |
in16.txt | AC | 1 ms | 128 KB |
in17.txt | AC | 1 ms | 128 KB |
in18.txt | AC | 0 ms | 128 KB |
in19.txt | AC | 0 ms | 128 KB |
in2.txt | AC | 14 ms | 1280 KB |
in20.txt | AC | 0 ms | 128 KB |
in21.txt | AC | 12 ms | 512 KB |
in22.txt | AC | 12 ms | 512 KB |
in23.txt | AC | 12 ms | 512 KB |
in24.txt | AC | 1 ms | 128 KB |
in25.txt | AC | 2 ms | 256 KB |
in26.txt | AC | 12 ms | 512 KB |
in27.txt | AC | 12 ms | 512 KB |
in3.txt | AC | 14 ms | 1280 KB |
in4.txt | AC | 14 ms | 1280 KB |
in5.txt | AC | 14 ms | 1280 KB |
in6.txt | AC | 12 ms | 512 KB |
in7.txt | AC | 12 ms | 512 KB |
in8.txt | AC | 2 ms | 256 KB |
in9.txt | AC | 2 ms | 256 KB |
sample1.txt | AC | 1 ms | 128 KB |
sample2.txt | AC | 1 ms | 128 KB |
sample3.txt | AC | 1 ms | 128 KB |