Submission #1357230
Source Code Expand
#include <iostream> #include <unordered_map> using namespace std; long long n, a[100000 + 10], result = 0; unordered_map<long long, long long> u; void read() { cin >> n; for(int i = 0; i < n; i++) { cin >> a[i]; result = result ^ a[i]; u[a[i] ^ (a[i] - 1)] = 1; } } long long solve() { long long x = 0; for(int i = 30; i >= 0; i--) { if(result & (1LL << i)) { if(u.find((1LL << (i + 1)) - 1LL) != u.end()) { x++; result = result ^ ((1LL << (i + 1)) - 1LL); } else { return -1; } } } return x; } int main() { read(); cout << solve(); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | Viorel123 |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 751 Byte |
Status | AC |
Exec Time | 45 ms |
Memory | 1152 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 | 1024 KB |
003.txt | AC | 15 ms | 768 KB |
004.txt | AC | 17 ms | 640 KB |
005.txt | AC | 13 ms | 512 KB |
006.txt | AC | 42 ms | 1024 KB |
007.txt | AC | 42 ms | 1024 KB |
008.txt | AC | 42 ms | 1024 KB |
009.txt | AC | 42 ms | 1024 KB |
010.txt | AC | 42 ms | 1024 KB |
011.txt | AC | 42 ms | 1024 KB |
012.txt | AC | 43 ms | 1024 KB |
013.txt | AC | 42 ms | 1024 KB |
014.txt | AC | 42 ms | 1152 KB |
015.txt | AC | 42 ms | 1024 KB |
016.txt | AC | 42 ms | 1024 KB |
017.txt | AC | 42 ms | 1024 KB |
018.txt | AC | 42 ms | 1024 KB |
019.txt | AC | 42 ms | 1024 KB |
020.txt | AC | 42 ms | 1152 KB |
021.txt | AC | 5 ms | 256 KB |
022.txt | AC | 5 ms | 256 KB |
023.txt | AC | 41 ms | 1024 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |