Submission #3414692
Source Code Expand
#include <iostream> using namespace std; int N,X = 0,A[100010],pow[31] = {1}; int main(){ cin >> N; for(int i=1;i<30;i++) pow[i] = pow[i-1]*2; for(int i=0;i<N;i++){ cin >> A[i]; X = (X xor A[i]); } int ans = 0; for(int i=29;i>=1;i--){ if(!(X&(1<<(i-1)))) continue; for(int j=0;j<N;j++){ if(pow[i]-1==(A[j] xor (A[j]-1))){ X = (X xor A[j] xor (A[j]-1)); ans++; } } } cout << (X==0? ans:-1) << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | idsigma |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 452 Byte |
Status | WA |
Exec Time | 58 ms |
Memory | 640 KB |
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | 58 ms | 640 KB |
003.txt | WA | 17 ms | 512 KB |
004.txt | AC | 20 ms | 384 KB |
005.txt | AC | 16 ms | 384 KB |
006.txt | WA | 56 ms | 640 KB |
007.txt | WA | 54 ms | 640 KB |
008.txt | WA | 55 ms | 640 KB |
009.txt | WA | 54 ms | 640 KB |
010.txt | WA | 55 ms | 640 KB |
011.txt | WA | 54 ms | 640 KB |
012.txt | WA | 55 ms | 640 KB |
013.txt | WA | 54 ms | 640 KB |
014.txt | WA | 55 ms | 640 KB |
015.txt | WA | 54 ms | 640 KB |
016.txt | AC | 55 ms | 640 KB |
017.txt | AC | 54 ms | 640 KB |
018.txt | WA | 55 ms | 640 KB |
019.txt | WA | 54 ms | 640 KB |
020.txt | AC | 55 ms | 640 KB |
021.txt | AC | 6 ms | 256 KB |
022.txt | AC | 6 ms | 256 KB |
023.txt | AC | 53 ms | 640 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |