Submission #1000635
Source Code Expand
#include <bits/stdc++.h> #ifdef AZN #include "Azn.cpp" #else #define pln(...) #endif using namespace std; typedef long long ll; typedef double dd; void solve(ll test_num) { (void) test_num; int N; cin >> N; vector<int> arr(N); for (int& a : arr) cin >> a; int xsum = 0; set<int> have; for (int a : arr) { xsum ^= a; have.insert(__builtin_ctz(a)); } int res = 0; for (int bit = 30; bit >= 0; --bit) { if (xsum >> bit & 1) { if (!have.count(bit)) { cout << "-1\n"; return; } ++res; xsum ^= (1 << bit) - 1; } } cout << res << endl; } void init() { } int main() { #ifdef AZN const auto start_time = chrono::system_clock::now(); freopen("/home/azneye/Documents/Stuff/input.txt", "r", stdin); #endif ios::sync_with_stdio(false); cin.tie(nullptr); init(); ll tests = 1; //cin >> tests; for (ll test = 1; test <= tests; ++test) { solve(test); } #ifdef AZN cerr << "Took: " << ((chrono::system_clock::now() - start_time).count() / 1e9) << " s" << endl; #endif return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | azneye |
Language | C++14 (GCC 5.4.1) |
Score | 500 |
Code Size | 1141 Byte |
Status | AC |
Exec Time | 16 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 | 2 ms | 256 KB |
001.txt | AC | 2 ms | 256 KB |
002.txt | AC | 14 ms | 640 KB |
003.txt | AC | 7 ms | 512 KB |
004.txt | AC | 7 ms | 384 KB |
005.txt | AC | 6 ms | 384 KB |
006.txt | AC | 16 ms | 640 KB |
007.txt | AC | 16 ms | 640 KB |
008.txt | AC | 16 ms | 640 KB |
009.txt | AC | 16 ms | 640 KB |
010.txt | AC | 16 ms | 640 KB |
011.txt | AC | 16 ms | 640 KB |
012.txt | AC | 16 ms | 640 KB |
013.txt | AC | 16 ms | 640 KB |
014.txt | AC | 16 ms | 640 KB |
015.txt | AC | 16 ms | 640 KB |
016.txt | AC | 16 ms | 640 KB |
017.txt | AC | 16 ms | 640 KB |
018.txt | AC | 16 ms | 640 KB |
019.txt | AC | 16 ms | 640 KB |
020.txt | AC | 16 ms | 640 KB |
021.txt | AC | 3 ms | 256 KB |
022.txt | AC | 4 ms | 256 KB |
023.txt | AC | 13 ms | 640 KB |
example0.txt | AC | 2 ms | 256 KB |
example1.txt | AC | 2 ms | 256 KB |