Submission #1247847
Source Code Expand
#include <vector> #include <iostream> #include <set> #include <algorithm> using namespace std; typedef long long ll; int main(){ ll N; cin >> N; ll now=0; vector<ll> bitn(40,0); for(int i=0;i<N;i++){ ll A; cin >> A; for(int k=0;1;k++){ if((A&((ll)1<<k))!=0){ now^=A^(1<<k); bitn[k]++; break; } } } bool rev=0; ll ans=0; for(ll i=35;i>=0;i--){ ll k=(ll)1<<i; if((bitn[i] + ((now&k)!=0) + rev) % 2 == 1){ if(bitn[i]==0){ ans=-1; break; }else{ rev=!rev; ans++; } } } cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | vjudge1 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 569 Byte |
Status | AC |
Exec Time | 47 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 | 44 ms | 256 KB |
003.txt | AC | 14 ms | 256 KB |
004.txt | AC | 16 ms | 256 KB |
005.txt | AC | 13 ms | 256 KB |
006.txt | AC | 42 ms | 256 KB |
007.txt | AC | 41 ms | 256 KB |
008.txt | AC | 41 ms | 256 KB |
009.txt | AC | 41 ms | 256 KB |
010.txt | AC | 42 ms | 256 KB |
011.txt | AC | 42 ms | 256 KB |
012.txt | AC | 42 ms | 256 KB |
013.txt | AC | 47 ms | 256 KB |
014.txt | AC | 41 ms | 256 KB |
015.txt | AC | 42 ms | 256 KB |
016.txt | AC | 42 ms | 256 KB |
017.txt | AC | 41 ms | 256 KB |
018.txt | AC | 42 ms | 256 KB |
019.txt | AC | 42 ms | 256 KB |
020.txt | AC | 42 ms | 256 KB |
021.txt | AC | 5 ms | 256 KB |
022.txt | AC | 5 ms | 256 KB |
023.txt | AC | 41 ms | 256 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |