Submission #1000608
Source Code Expand
#include <bits/stdc++.h> #define rep(i,n) for(int i=0;i<(int)(n);i++) #define rep1(i,n) for(int i=1;i<=(int)(n);i++) #define all(c) c.begin(),c.end() #define pb push_back #define fs first #define sc second #define show(x) cout << #x << " = " << x << endl #define chmin(x,y) x=min(x,y) #define chmax(x,y) x=max(x,y) using namespace std; template<class S,class T> ostream& operator<<(ostream& o,const pair<S,T> &p){return o<<"("<<p.fs<<","<<p.sc<<")";} template<class T> ostream& operator<<(ostream& o,const vector<T> &vc){o<<"sz = "<<vc.size()<<endl<<"[";for(const T& v:vc) o<<v<<",";o<<"]";return o;} bool B(int a,int i){return (a>>i)&1;} bool b[32]; int main(){ int N; cin>>N; int x=0; rep(i,N){ int a; cin>>a; x^=a; int j=0; while(!B(a,j)) j++; b[j]=1; } int a=0; for(int i=30;i>=0;i--){ if(B(x,i+1)!=B(x,i)){ if(!b[i]){ puts("-1"); return 0; } a++; } } cout<<a<<endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | sigma425 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 954 Byte |
Status | AC |
Exec Time | 50 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 | 2 ms | 256 KB |
001.txt | AC | 2 ms | 256 KB |
002.txt | AC | 50 ms | 256 KB |
003.txt | AC | 18 ms | 256 KB |
004.txt | AC | 20 ms | 256 KB |
005.txt | AC | 16 ms | 256 KB |
006.txt | AC | 48 ms | 256 KB |
007.txt | AC | 48 ms | 256 KB |
008.txt | AC | 47 ms | 256 KB |
009.txt | AC | 48 ms | 256 KB |
010.txt | AC | 48 ms | 256 KB |
011.txt | AC | 47 ms | 256 KB |
012.txt | AC | 48 ms | 256 KB |
013.txt | AC | 48 ms | 256 KB |
014.txt | AC | 48 ms | 256 KB |
015.txt | AC | 48 ms | 256 KB |
016.txt | AC | 48 ms | 256 KB |
017.txt | AC | 48 ms | 256 KB |
018.txt | AC | 47 ms | 256 KB |
019.txt | AC | 48 ms | 256 KB |
020.txt | AC | 48 ms | 256 KB |
021.txt | AC | 6 ms | 256 KB |
022.txt | AC | 7 ms | 256 KB |
023.txt | AC | 47 ms | 256 KB |
example0.txt | AC | 2 ms | 256 KB |
example1.txt | AC | 2 ms | 256 KB |