Submission #1001398
Source Code Expand
#include<iostream> using namespace std; int n,a[1<<17],G,F[31],res,R,i,j,cnt; main(){ cin>>n; for(i=0;i<n;i++){ cin>>a[i];res^=a[i]; R=a[i]^(a[i]-1); for(j=1;j<31;j++){ if(R==(1<<j)-1)F[j-1]++; } } for(i=29;i>=0;i--){ if(res>=(1<<i)){ if(F[i]==0){cout<<"-1\n";return 0;} res^=(1<<(i+1))-1; cnt++; } } if(res==0)cout<<cnt<<endl;else cout<<"-1\n"; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | E869120 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 367 Byte |
Status | AC |
Exec Time | 57 ms |
Memory | 640 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 | 3 ms | 256 KB |
001.txt | AC | 3 ms | 256 KB |
002.txt | AC | 54 ms | 640 KB |
003.txt | AC | 21 ms | 512 KB |
004.txt | AC | 22 ms | 384 KB |
005.txt | AC | 17 ms | 384 KB |
006.txt | AC | 51 ms | 640 KB |
007.txt | AC | 51 ms | 640 KB |
008.txt | AC | 51 ms | 640 KB |
009.txt | AC | 51 ms | 640 KB |
010.txt | AC | 51 ms | 640 KB |
011.txt | AC | 51 ms | 640 KB |
012.txt | AC | 51 ms | 640 KB |
013.txt | AC | 51 ms | 640 KB |
014.txt | AC | 51 ms | 640 KB |
015.txt | AC | 51 ms | 640 KB |
016.txt | AC | 51 ms | 640 KB |
017.txt | AC | 51 ms | 640 KB |
018.txt | AC | 57 ms | 640 KB |
019.txt | AC | 51 ms | 640 KB |
020.txt | AC | 51 ms | 640 KB |
021.txt | AC | 7 ms | 256 KB |
022.txt | AC | 7 ms | 256 KB |
023.txt | AC | 50 ms | 640 KB |
example0.txt | AC | 3 ms | 256 KB |
example1.txt | AC | 3 ms | 256 KB |