Submission #1477395
Source Code Expand
#include <iostream> #define REP(i, a, n) for(ll i = ((ll) a); i < ((ll) n); i++) using namespace std; typedef long long ll; ll N, A[100000]; int main(void) { cin >> N; REP(i, 0, N) cin >> A[i]; ll sa = 0; REP(i, 0, N) sa += A[i]; if(sa % (N * (N + 1) / 2) != 0) { cout << "NO" << endl; } else { ll k = sa / (N * (N + 1) / 2); ll cnt = 0; bool f = 1; REP(i, 0, N) { ll x = (-A[(i + 1) % N] + A[i] + k); f = f && x >= 0 && x % N == 0; cnt += x / N; } cout << (f && cnt == k ? "YES" : "NO") << endl; } }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | kshinya |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 593 Byte |
Status | AC |
Exec Time | 44 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 | 35 ms | 1024 KB |
in10.txt | AC | 5 ms | 384 KB |
in11.txt | AC | 42 ms | 1024 KB |
in12.txt | AC | 44 ms | 1024 KB |
in13.txt | AC | 38 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 | 43 ms | 1024 KB |
in20.txt | AC | 1 ms | 256 KB |
in21.txt | AC | 40 ms | 1024 KB |
in22.txt | AC | 40 ms | 1024 KB |
in23.txt | AC | 40 ms | 1024 KB |
in24.txt | AC | 3 ms | 256 KB |
in25.txt | AC | 5 ms | 384 KB |
in26.txt | AC | 42 ms | 1024 KB |
in27.txt | AC | 42 ms | 1024 KB |
in3.txt | AC | 44 ms | 1024 KB |
in4.txt | AC | 44 ms | 1024 KB |
in5.txt | AC | 43 ms | 1024 KB |
in6.txt | AC | 40 ms | 1024 KB |
in7.txt | AC | 40 ms | 1024 KB |
in8.txt | AC | 5 ms | 384 KB |
in9.txt | AC | 5 ms | 384 KB |
sample1.txt | AC | 1 ms | 256 KB |
sample2.txt | AC | 1 ms | 256 KB |
sample3.txt | AC | 1 ms | 256 KB |