Submission #1247848
Source Code Expand
#include <bits/stdc++.h> using namespace std; vector<long long> a[32]; int b[32]; int count_tail_zero(long long t){ int ans = 0; while(t % 2 == 0){ t /= 2; ans++; } return ans; } int top_one(long long t){ int ret = -1; for(int i = 0; i < 32; i++){ if(t & 1 == 1) ret = i; t /= 2; } return ret; } int main(){ int N; cin >> N; long long p = 0; for(int i = 0; i < N; i++){ long long t; cin >> t; int k = count_tail_zero(t); a[k].push_back(t); b[k]++; p ^= t; } int ans = 0; while( p != 0 ){ int k = top_one( p ); if( b[k] == 0 ){ puts("-1"); return 0; }else{ b[k]--; p ^= (1 << (k+1)) - 1; 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 | 753 Byte |
Status | AC |
Exec Time | 47 ms |
Memory | 1528 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 | 45 ms | 1528 KB |
003.txt | AC | 15 ms | 768 KB |
004.txt | AC | 16 ms | 732 KB |
005.txt | AC | 13 ms | 512 KB |
006.txt | AC | 45 ms | 1280 KB |
007.txt | AC | 43 ms | 1280 KB |
008.txt | AC | 43 ms | 1408 KB |
009.txt | AC | 43 ms | 1408 KB |
010.txt | AC | 43 ms | 1280 KB |
011.txt | AC | 43 ms | 1408 KB |
012.txt | AC | 43 ms | 1280 KB |
013.txt | AC | 43 ms | 1280 KB |
014.txt | AC | 46 ms | 1408 KB |
015.txt | AC | 43 ms | 1280 KB |
016.txt | AC | 43 ms | 1280 KB |
017.txt | AC | 43 ms | 1280 KB |
018.txt | AC | 43 ms | 1408 KB |
019.txt | AC | 43 ms | 1280 KB |
020.txt | AC | 47 ms | 1280 KB |
021.txt | AC | 5 ms | 384 KB |
022.txt | AC | 5 ms | 384 KB |
023.txt | AC | 44 ms | 1400 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |