Submission #2626365
Source Code Expand
#include <bits/stdc++.h> using namespace std; #define REP(i,a,b) for(int i=a;i<b;i++) #define rep(i,n) REP(i,0,n) typedef long long ll; typedef pair<int, int> pii; typedef vector<int> vi; typedef vector<ll> vl; ll N; ll ans = 0; void solve() { cin >> N; multiset<ll> st; ll cur = 0; rep(i,N) { ll a; cin >> a; st.insert(a); cur ^= a; } for (ll i = 16; i >= 0; --i) { if ((cur >> i) & 1) { if (!st.count(1 << i)) { cout << -1 << endl; return; } cur ^= (1 << i) - 1; auto it = st.find(1 << i); st.erase(it); st.insert((1 << i) - 1); ans++; } } cout << ans << endl; } int main() { cin.tie(0); ios::sync_with_stdio(false); solve(); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | bluenote |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 905 Byte |
Status | WA |
Exec Time | 44 ms |
Memory | 4992 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 | WA | 1 ms | 256 KB |
001.txt | AC | 1 ms | 256 KB |
002.txt | AC | 34 ms | 4992 KB |
003.txt | AC | 23 ms | 3072 KB |
004.txt | AC | 18 ms | 2560 KB |
005.txt | AC | 11 ms | 1664 KB |
006.txt | WA | 43 ms | 4992 KB |
007.txt | WA | 43 ms | 4992 KB |
008.txt | WA | 43 ms | 4992 KB |
009.txt | WA | 43 ms | 4992 KB |
010.txt | WA | 43 ms | 4992 KB |
011.txt | WA | 43 ms | 4992 KB |
012.txt | WA | 43 ms | 4992 KB |
013.txt | WA | 43 ms | 4992 KB |
014.txt | WA | 43 ms | 4992 KB |
015.txt | WA | 43 ms | 4992 KB |
016.txt | AC | 43 ms | 4992 KB |
017.txt | AC | 43 ms | 4992 KB |
018.txt | WA | 44 ms | 4992 KB |
019.txt | WA | 43 ms | 4992 KB |
020.txt | AC | 43 ms | 4992 KB |
021.txt | AC | 4 ms | 640 KB |
022.txt | AC | 4 ms | 640 KB |
023.txt | WA | 37 ms | 4992 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |