Submission #1654092
Source Code Expand
#include <bits/stdc++.h> using namespace std; long long int n,x=0,k=0,o=0,u=0,s=0,l=1e10,a[300000]; int main() { ios::sync_with_stdio(false),cin.tie(0),cout.tie(0); cin >> n; for(int i=1; i<=n; i++) { cin >> a[i]; s+=a[i]; k=max(k,a[i]); l=min(l,a[i]); } x=n*(n+1); x/=2; if(s%x!=0) { cout << "NO"; return 0; } x=s/x; if(l<x || n*x<k) { cout << "NO"; return 0; } s=0; //cout << "OK"; for(int i=1; i<=n; i++) { if(i<n) l=a[i+1]-a[i]; else l=a[1]-a[n]; k=x; if(l>=0) { k-=l; if(k%n!=0) { cout << "NO"; return 0; } k/=n; s+=k; } else { l*=-1; o=l%(n-1); if(o>0) o=n-1-o; l+=o; l/=(n-1); k-=o; k-=l; if(k%n!=0) { cout << "NO"; return 0; } k/=n; k+=l; s+=k; } //cout << i << ' ' << s << endl; } //cout << s << " OK" << endl; if(s!=x) { cout << "NO"; return 0; } cout << "YES"; return 0; }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | vjudge2 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 1101 Byte |
Status | AC |
Exec Time | 14 ms |
Memory | 1024 KB |
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 | 11 ms | 1024 KB |
in10.txt | AC | 2 ms | 384 KB |
in11.txt | AC | 11 ms | 1024 KB |
in12.txt | AC | 11 ms | 1024 KB |
in13.txt | AC | 9 ms | 896 KB |
in14.txt | AC | 1 ms | 256 KB |
in15.txt | AC | 1 ms | 256 KB |
in16.txt | AC | 1 ms | 256 KB |
in17.txt | AC | 1 ms | 256 KB |
in18.txt | AC | 1 ms | 256 KB |
in19.txt | AC | 1 ms | 256 KB |
in2.txt | AC | 12 ms | 1024 KB |
in20.txt | AC | 1 ms | 256 KB |
in21.txt | AC | 11 ms | 1024 KB |
in22.txt | AC | 11 ms | 1024 KB |
in23.txt | AC | 11 ms | 1024 KB |
in24.txt | AC | 2 ms | 256 KB |
in25.txt | AC | 2 ms | 384 KB |
in26.txt | AC | 11 ms | 1024 KB |
in27.txt | AC | 11 ms | 1024 KB |
in3.txt | AC | 14 ms | 1024 KB |
in4.txt | AC | 12 ms | 1024 KB |
in5.txt | AC | 12 ms | 1024 KB |
in6.txt | AC | 12 ms | 1024 KB |
in7.txt | AC | 11 ms | 1024 KB |
in8.txt | AC | 2 ms | 384 KB |
in9.txt | AC | 2 ms | 384 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |