/*
This code belongs to Aadit Ambadkar
Date: 2022-02-02 21:55:57
Problem: br
*/
#include <bits/stdc++.h>
using namespace::std;
typedef long long ll;
#define F0R(i, n) for (int i = 0; i < n; i++)
#define R0F(i, n) for (int i = n-1; i >= 0; i--)
#define FOR(i, a, n) for (int i = a; i < n; i++)
#define pb push_back
#define fastio ios::sync_with_stdio(0); cin.tie(0)
#define MOD 1000000007
#define FF first
#define SS second
int bcount(int n) {
int ans = 0;
while (n) {
if (n%2==1) ans++;
n/=2;
}
return ans;
}
int tcount(int n) {
int ans = 0;
while (n) {
if (n%3==1) ans++;
n/=3;
}
return ans;
}
int n;
vector<int> arr;
vector<int> bc;
vector<int> tc;
int main() {
fastio;
cin >> n;
F0R(i, n) {
int x; cin >> x;
arr.pb(x);
bc.pb(bcount(x));
tc.pb(tcount(x));
}
// F0R(i, n) {
// cout << bc[i] << " ";
// }
// cout << "\n";
// F0R(i, n) {
// cout << tc[i] << " ";
// }
// cout << "\n";
vector<int> ord;
F0R(i, n) {
ord.pb(i);
}
int ans = 0;
do {
bool flag = true;
F0R(i, n-1) {
if (bc[ord[i]]!=bc[ord[i+1]] && tc[ord[i]]!=tc[ord[i+1]]) {
flag = false;
break;
}
}
if (flag) {
ans++;
}
} while (next_permutation(ord.begin(), ord.end()));
cout << ans << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
308 KB |
Output is correct |
3 |
Correct |
1 ms |
216 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
25 ms |
312 KB |
Output is correct |
7 |
Correct |
20 ms |
312 KB |
Output is correct |
8 |
Correct |
71 ms |
292 KB |
Output is correct |
9 |
Correct |
23 ms |
204 KB |
Output is correct |
10 |
Correct |
56 ms |
204 KB |
Output is correct |
11 |
Execution timed out |
3039 ms |
204 KB |
Time limit exceeded |
12 |
Halted |
0 ms |
0 KB |
- |