Submission #4907343
Source Code Expand
#include<bits/stdc++.h> using namespace std; const int maxn = 1e5 + 5; int n; int X, cnt[31], ans; int main() { ios::sync_with_stdio(false); cin.tie(0); cin >> n; for(int i = 0; i < n; i++) { int a; cin >> a; X = X ^ a; int res = 0; res = __builtin_ctz(a); cnt[res]++; } for(int i = 30; i >= 0; i--) { if((X >> (i)) & 1) { if(cnt[i] > 0) { X = X ^ ((1LL << (i + 1) )- 1); ans++; } else return cout << -1, 0; } } return cout << ans, 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | Adibov |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 513 Byte |
Status | AC |
Exec Time | 12 ms |
Memory | 256 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | example0.txt, example1.txt |
All | 000.txt, 001.txt, 002.txt, 003.txt, 004.txt, 005.txt, 006.txt, 007.txt, 008.txt, 009.txt, 010.txt, 011.txt, 012.txt, 013.txt, 014.txt, 015.txt, 016.txt, 017.txt, 018.txt, 019.txt, 020.txt, 021.txt, 022.txt, 023.txt, example0.txt, example1.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
000.txt | AC | 1 ms | 256 KB |
001.txt | AC | 1 ms | 256 KB |
002.txt | AC | 11 ms | 256 KB |
003.txt | AC | 5 ms | 256 KB |
004.txt | AC | 5 ms | 256 KB |
005.txt | AC | 4 ms | 256 KB |
006.txt | AC | 11 ms | 256 KB |
007.txt | AC | 11 ms | 256 KB |
008.txt | AC | 11 ms | 256 KB |
009.txt | AC | 11 ms | 256 KB |
010.txt | AC | 11 ms | 256 KB |
011.txt | AC | 11 ms | 256 KB |
012.txt | AC | 12 ms | 256 KB |
013.txt | AC | 11 ms | 256 KB |
014.txt | AC | 11 ms | 256 KB |
015.txt | AC | 11 ms | 256 KB |
016.txt | AC | 11 ms | 256 KB |
017.txt | AC | 11 ms | 256 KB |
018.txt | AC | 11 ms | 256 KB |
019.txt | AC | 11 ms | 256 KB |
020.txt | AC | 11 ms | 256 KB |
021.txt | AC | 2 ms | 256 KB |
022.txt | AC | 2 ms | 256 KB |
023.txt | AC | 11 ms | 256 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |