Submission #1093057
Source Code Expand
#include <bits/stdc++.h> using namespace std; int main() { ios_base::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<long long> a; long long sum = 0; a.resize(n); for (int i = 0; i < n; i++) { cin >> a[i]; sum += a[i]; } long long per_move = n * (n + 1) / 2; if (sum % per_move) { cout << "NO"; return 0; } long long total_moves = sum / per_move; long long m2 = 0; long long check_0 = 0; for (int i = 0; i < n; i++) { int pred = (i - 1 + n) % n; long long prev_sub = a[pred]; long long cur_sub_delta = (prev_sub + total_moves) - a[i]; if (cur_sub_delta % n || cur_sub_delta < 0) { //cerr << i << ' ' << cur_sub_delta << endl; //cerr << "a"; cout << "NO"; return 0; } check_0 += (cur_sub_delta / n) * (i == 0 ? 1 : n - i + 1); m2 += cur_sub_delta / n; } if (check_0 != a[0]) { //cerr << check_0 << endl; //cerr << "b"; cout << "NO"; return 0; } if (m2 != total_moves) { //cerr << "c"; cout << "NO"; return 0; } cout << "YES"; }
Submission Info
Submission Time | |
---|---|
Task | B - Boxes |
User | Dener |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1310 Byte |
Status | WA |
Exec Time | 14 ms |
Memory | 1024 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | WA | 12 ms | 1024 KB |
in10.txt | AC | 4 ms | 384 KB |
in11.txt | AC | 13 ms | 1024 KB |
in12.txt | AC | 13 ms | 1024 KB |
in13.txt | AC | 12 ms | 896 KB |
in14.txt | AC | 3 ms | 256 KB |
in15.txt | AC | 3 ms | 256 KB |
in16.txt | AC | 3 ms | 256 KB |
in17.txt | AC | 2 ms | 256 KB |
in18.txt | AC | 3 ms | 256 KB |
in19.txt | AC | 2 ms | 256 KB |
in2.txt | WA | 13 ms | 1024 KB |
in20.txt | AC | 3 ms | 256 KB |
in21.txt | AC | 13 ms | 1024 KB |
in22.txt | AC | 13 ms | 1024 KB |
in23.txt | AC | 13 ms | 1024 KB |
in24.txt | AC | 3 ms | 256 KB |
in25.txt | AC | 4 ms | 384 KB |
in26.txt | AC | 13 ms | 1024 KB |
in27.txt | AC | 13 ms | 1024 KB |
in3.txt | WA | 14 ms | 1024 KB |
in4.txt | WA | 13 ms | 1024 KB |
in5.txt | WA | 13 ms | 1024 KB |
in6.txt | AC | 13 ms | 1024 KB |
in7.txt | AC | 13 ms | 1024 KB |
in8.txt | AC | 4 ms | 384 KB |
in9.txt | AC | 4 ms | 384 KB |
sample1.txt | AC | 3 ms | 256 KB |
sample2.txt | AC | 3 ms | 256 KB |
sample3.txt | AC | 3 ms | 256 KB |