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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#309573 | #7932. AND-OR closure | nvujica | WA | 1ms | 3868kb | C++14 | 1.4kb | 2024-01-20 18:27:54 | 2024-01-20 18:27:55 |
Judging History
answer
#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
using namespace std;
const int maxn = 2e5 + 10, LOG = 40;
int n, m;
ll ost;
ll a[maxn];
ll b[LOG];
vector <ll> v;
//void ispis(ll x){
// for(int i = 0; i < LOG; i++){
// if(x & (1LL << i)) cout << 1;
// else cout << 0;
// }
// cout << endl;
//}
ll rek(){
ll sol = 0;
sort(v.begin(), v.end());
vector <ll> v2;
for(int i = 0; i < v.size(); i++){
if(i && v[i] == v[i - 1]) continue;
if(v[i] == 0) continue;
v2.push_back(v[i]);
// ispis(v[i]);
}
// cout << endl;
if(v.empty()) return 1;
v = v2;
int naj = 0;
for(int i = 0; i < v.size(); i++){
if(__builtin_popcountll(v[i]) > __builtin_popcount(v[naj])) naj = i;
}
if(__builtin_popcount(v[naj]) == 1) return (1LL << v.size());
// cout << naj << endl;
v.clear();
for(int i = 0; i < v2.size(); i++){
if((v2[naj] | v2[i]) == v2[naj]) continue;
v.push_back(v2[i]);
}
sol += rek();
v = v2;
v.erase(v.begin() + naj);
sol += rek();
v = v2;
return sol;
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n;
for(int i = 0; i < n; i++){
cin >> a[i];
}
for(int i = 0; i < LOG; i++){
ll x = (1LL << 42) - 1;
for(int j = 0; j < n; j++){
if(a[j] & (1LL << i)) x &= a[j];
}
if(x != (1LL << 42) - 1) v.push_back(x);
}
cout << rek();
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3624kb
input:
4 0 1 3 5
output:
5
result:
ok 1 number(s): "5"
Test #2:
score: 0
Accepted
time: 0ms
memory: 3868kb
input:
5 0 1 2 3 4
output:
8
result:
ok 1 number(s): "8"
Test #3:
score: -100
Wrong Answer
time: 1ms
memory: 3616kb
input:
49 1097363587067 1096810445814 275012137504 1096739142630 1096809921522 1087071335264 829364908576 949625500192 1087142638448 1096200190829 1097292808175 1095750860656 1087144145776 1097346808827 1095734082416 1096755396578 829230678048 1095663303524 1087072842592 1096216444777 949623992864 10962714...
output:
53
result:
wrong answer 1st numbers differ - expected: '52', found: '53'