Submission #2011125
Source Code Expand
#include<cstdio> #include<cstdlib> #include<cmath> #include<climits> #include<iostream> #include<string> #include<stack> #include<queue> #include<vector> #include<map> #include<set> #include<algorithm> #include<numeric> #include<bitset> #define rep(n) for(int i=0;i<n;i++) #define repp(j, n) for(int j=0;j<n;j++) #define reppp(i, m, n) for(int i=m;i<n;i++) #define all(c) c.begin(), c.end() #define rall(c) c.rbegin(), c.rend() #define MOD 1000000007 #define EPS 1e-9 using namespace std; typedef long long ll; typedef pair<ll, ll> Pll; typedef pair<int, int> Pii; struct edge{int from, to; ll cost;}; int main(){ std::ios::sync_with_stdio(0); cin.tie(0); int n; cin >> n; unsigned long a; bitset<32> aa = 0; vector<unsigned long> b; rep(n){ cin >> a; aa ^= bitset<32>(a); b.push_back(a^(a-1)); } sort(rall(b)); unique(all(b)); int i = 31, ans = 0; for(auto b_n : b){ bitset<32> b = bitset<32>(b_n); while(i >= 0 && !aa.test(i)) i--; if(i == -1) break; if(aa.test(i) && b.test(i)){ aa ^= b; ans++; } } if(i != -1) ans = -1; cout << ans << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | Noimin |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1272 Byte |
Status | WA |
Exec Time | 15 ms |
Memory | 1400 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 | 13 ms | 1400 KB |
003.txt | AC | 7 ms | 892 KB |
004.txt | AC | 6 ms | 892 KB |
005.txt | AC | 5 ms | 640 KB |
006.txt | AC | 15 ms | 1400 KB |
007.txt | AC | 15 ms | 1400 KB |
008.txt | AC | 15 ms | 1400 KB |
009.txt | AC | 15 ms | 1400 KB |
010.txt | AC | 15 ms | 1400 KB |
011.txt | AC | 15 ms | 1400 KB |
012.txt | AC | 15 ms | 1400 KB |
013.txt | AC | 15 ms | 1400 KB |
014.txt | AC | 15 ms | 1400 KB |
015.txt | AC | 15 ms | 1400 KB |
016.txt | WA | 15 ms | 1400 KB |
017.txt | WA | 15 ms | 1400 KB |
018.txt | AC | 15 ms | 1400 KB |
019.txt | AC | 15 ms | 1400 KB |
020.txt | WA | 15 ms | 1400 KB |
021.txt | AC | 2 ms | 512 KB |
022.txt | WA | 2 ms | 512 KB |
023.txt | AC | 13 ms | 1400 KB |
example0.txt | WA | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |