Submission #2852721
Source Code Expand
#include <iostream> using namespace std; int n; int a[100005]; bool cnt[35]; int main(void) { cin >> n; for(int i = 0; i < n; i++) cin >> a[i]; int grundy = 0; for(int i = 0; i < n; i++) grundy ^= a[i]; for(int i = 0; i < n; i++){ for(int j = 0; j < 35; j++){ if(a[i] & (1<<j)){ cnt[j] = true; break; } } } int ans = 0; for(int i = 30; i >= 0; i--){ if(!cnt[i]) continue; if(grundy & (1<<i)){ ans++; grundy ^= (1<<(i+1))-1; } } if(grundy == 0) cout << ans << endl; else cout << -1 << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | leaf1415 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 591 Byte |
Status | AC |
Exec Time | 58 ms |
Memory | 640 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 | 58 ms | 640 KB |
003.txt | AC | 17 ms | 512 KB |
004.txt | AC | 20 ms | 384 KB |
005.txt | AC | 17 ms | 384 KB |
006.txt | AC | 56 ms | 640 KB |
007.txt | AC | 55 ms | 640 KB |
008.txt | AC | 56 ms | 640 KB |
009.txt | AC | 55 ms | 640 KB |
010.txt | AC | 56 ms | 640 KB |
011.txt | AC | 55 ms | 640 KB |
012.txt | AC | 55 ms | 640 KB |
013.txt | AC | 56 ms | 640 KB |
014.txt | AC | 55 ms | 640 KB |
015.txt | AC | 56 ms | 640 KB |
016.txt | AC | 55 ms | 640 KB |
017.txt | AC | 56 ms | 640 KB |
018.txt | AC | 55 ms | 640 KB |
019.txt | AC | 56 ms | 640 KB |
020.txt | AC | 55 ms | 640 KB |
021.txt | AC | 6 ms | 256 KB |
022.txt | AC | 6 ms | 256 KB |
023.txt | AC | 56 ms | 640 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |