Submission #2858293
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int N = 1e5 + 5; int n; long long a[N]; int main() { ios_base::sync_with_stdio(false); cin >> n; for (int i = 1; i <= n; ++i) cin >> a[i]; long long sum = 0; for (int i = 1; i <= n; ++i) sum += a[i]; long long tot = 1LL * n * (n + 1) / 2LL; if (sum % tot) return cout << "NO\n",0; tot = sum / tot; for (int i = 1; i <= n; ++i) { long long d = a[i] - (i == 1 ? a[n] : a[i - 1]); d -= tot; if (d > 0) return cout << "NO\n",0; d = -d; if (d % n) return cout << "NO\n",0; } cout << "YES\n"; }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | vjudge1 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 564 Byte |
Status | AC |
Exec Time | 12 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 | 12 ms | 1024 KB |
in13.txt | AC | 10 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 | 12 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 | 12 ms | 1024 KB |
in4.txt | AC | 12 ms | 1024 KB |
in5.txt | AC | 12 ms | 1024 KB |
in6.txt | AC | 11 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 |