Submission #2092267
Source Code Expand
#include <iostream> #include <vector> #include <set> #include <map> #include <queue> #include <deque> #include <algorithm> using namespace std; using ll = long long; int main() { int N; cin >> N; int xsum = 0; set<int> masks; for (int i = 0; i < N; i++) { int a; cin >> a; xsum ^= a; masks.insert(a ^ (a - 1)); } int res = 0; for (auto it = masks.rbegin(); it != masks.rend(); it++) { if ((xsum ^ *it) < xsum) { xsum ^= *it; ++res; } } cout << (xsum == 0 ? res : -1) << endl; return 0; }
Submission Info
Submission Time | |
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Task | C - Cheating Nim |
User | kroton |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 578 Byte |
Status | AC |
Exec Time | 44 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 | 15 ms | 256 KB |
004.txt | AC | 16 ms | 256 KB |
005.txt | AC | 13 ms | 256 KB |
006.txt | AC | 43 ms | 256 KB |
007.txt | AC | 43 ms | 256 KB |
008.txt | AC | 43 ms | 256 KB |
009.txt | AC | 43 ms | 256 KB |
010.txt | AC | 43 ms | 256 KB |
011.txt | AC | 43 ms | 256 KB |
012.txt | AC | 43 ms | 256 KB |
013.txt | AC | 43 ms | 256 KB |
014.txt | AC | 43 ms | 256 KB |
015.txt | AC | 43 ms | 256 KB |
016.txt | AC | 44 ms | 256 KB |
017.txt | AC | 43 ms | 256 KB |
018.txt | AC | 43 ms | 256 KB |
019.txt | AC | 43 ms | 256 KB |
020.txt | AC | 43 ms | 256 KB |
021.txt | AC | 5 ms | 256 KB |
022.txt | AC | 5 ms | 256 KB |
023.txt | AC | 40 ms | 256 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |