Submission #1839714
Source Code Expand
#include<bits/stdc++.h> #define range(i,a,b) for(int i = (a); i < (b); i++) #define rep(i,b) for(int i = 0; i < (b); i++) #define all(a) (a).begin(), (a).end() #define show(x) cerr << #x << " = " << (x) << endl; //const int INF = 1e8; using namespace std; int main(){ int n; cin >> n; vector<int> a(n); map<int,int> m; int s = 0; rep(i,n){ cin >> a[i]; m[ a[i] ]++; s ^= a[i]; } bitset<30> b(s); int ans = 0; for(int i = 30 - 1; i >= 0; i--){ //show(s) if(b[i]){ int tmp = 1 << i; //show(tmp) if(m[tmp] > 0){ m[tmp]--; s ^= tmp; tmp--; s ^= tmp; ans++; } } b = bitset<30>(s); } for(auto i : m){ if(i.second > 0 && i.first % 2 == 1){ ans++; s ^= 1; } } cout << (s == 0 ? ans : -1) << endl; }
Submission Info
Submission Time | |
---|---|
Task | C - Cheating Nim |
User | noy72 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 818 Byte |
Status | WA |
Exec Time | 66 ms |
Memory | 3584 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 | 44 ms | 640 KB |
003.txt | WA | 18 ms | 512 KB |
004.txt | AC | 30 ms | 2560 KB |
005.txt | AC | 24 ms | 1792 KB |
006.txt | WA | 64 ms | 3328 KB |
007.txt | WA | 64 ms | 3328 KB |
008.txt | WA | 64 ms | 3328 KB |
009.txt | WA | 64 ms | 3328 KB |
010.txt | WA | 64 ms | 3328 KB |
011.txt | WA | 64 ms | 3328 KB |
012.txt | WA | 64 ms | 3328 KB |
013.txt | WA | 64 ms | 3328 KB |
014.txt | WA | 66 ms | 3328 KB |
015.txt | WA | 64 ms | 3328 KB |
016.txt | AC | 63 ms | 3328 KB |
017.txt | AC | 64 ms | 3328 KB |
018.txt | WA | 66 ms | 3584 KB |
019.txt | WA | 63 ms | 3328 KB |
020.txt | AC | 63 ms | 3328 KB |
021.txt | AC | 6 ms | 640 KB |
022.txt | AC | 6 ms | 512 KB |
023.txt | AC | 45 ms | 640 KB |
example0.txt | AC | 1 ms | 256 KB |
example1.txt | AC | 1 ms | 256 KB |