Submission #2263474
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define int long long #define rep(i,n) for(int i=0;i<(n);i++) #define pb push_back #define all(v) (v).begin(),(v).end() #define fi first #define se second typedef vector<int>vint; typedef pair<int,int>pint; typedef vector<pint>vpint; template<typename A,typename B>inline void chmin(A &a,B b){if(a>b)a=b;} template<typename A,typename B>inline void chmax(A &a,B b){if(a<b)a=b;} int N; bool f[33]; signed main(){ cin>>N; int X=0; rep(i,N){ int a;cin>>a; X^=a; int k=0; while(!(a>>k&1))k++; f[k]=true; } int cnt=0; for(int i=30;i>=0;i--){ if(!(X>>i)&1)continue; if(!f[i]){ cout<<-1<<endl; return 0; } X^=(1<<(i+1))-1; cnt++; } cout<<cnt<<endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | latte0119 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 893 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 | 43 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 | 41 ms | 256 KB |
007.txt | AC | 41 ms | 256 KB |
008.txt | AC | 41 ms | 256 KB |
009.txt | AC | 47 ms | 256 KB |
010.txt | AC | 41 ms | 256 KB |
011.txt | AC | 41 ms | 256 KB |
012.txt | AC | 41 ms | 256 KB |
013.txt | AC | 41 ms | 256 KB |
014.txt | AC | 44 ms | 256 KB |
015.txt | AC | 41 ms | 256 KB |
016.txt | AC | 41 ms | 256 KB |
017.txt | AC | 41 ms | 256 KB |
018.txt | AC | 41 ms | 256 KB |
019.txt | AC | 41 ms | 256 KB |
020.txt | AC | 41 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 |