Submission #1000630
Source Code Expand
#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; vector<int> v(n, 0); int s = 0; for(int i = 0; i < n; ++i) { cin >> v[i]; s ^= v[i]; } vector<int> used(n, 0); int ans = 0; for(int bit = 31; bit >= 0; --bit) { if((1 << bit) & s) { ans++; bool has = false; for(int i = 0; i < n; ++i) { if(not used[i] && (v[i] & (-v[i])) == (1 << bit)) { has = true; used[i] = 1; s ^= ((1 << bit) - 1); s ^= (1 << bit); } } if(not has) { cout << "-1"; return 0; } } } cout << ans << "\n"; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | mcalancea |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 832 Byte |
Status | WA |
Exec Time | 51 ms |
Memory | 1152 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | 3 ms | 256 KB |
001.txt | AC | 3 ms | 256 KB |
002.txt | AC | 46 ms | 1024 KB |
003.txt | WA | 17 ms | 768 KB |
004.txt | AC | 18 ms | 640 KB |
005.txt | AC | 14 ms | 512 KB |
006.txt | WA | 51 ms | 1024 KB |
007.txt | WA | 48 ms | 1024 KB |
008.txt | WA | 49 ms | 1024 KB |
009.txt | WA | 49 ms | 1024 KB |
010.txt | WA | 46 ms | 1024 KB |
011.txt | WA | 47 ms | 1024 KB |
012.txt | WA | 47 ms | 1024 KB |
013.txt | WA | 48 ms | 1024 KB |
014.txt | WA | 48 ms | 1024 KB |
015.txt | WA | 48 ms | 1024 KB |
016.txt | AC | 47 ms | 1024 KB |
017.txt | AC | 45 ms | 1024 KB |
018.txt | WA | 49 ms | 1024 KB |
019.txt | AC | 47 ms | 1024 KB |
020.txt | AC | 47 ms | 1024 KB |
021.txt | AC | 6 ms | 256 KB |
022.txt | AC | 6 ms | 256 KB |
023.txt | AC | 43 ms | 1152 KB |
example0.txt | AC | 3 ms | 256 KB |
example1.txt | AC | 3 ms | 256 KB |