// "Say:He is the Most Merciful,We have believed in him and upon him we have relied" [67:29]
#include<bits/stdc++.h>
using namespace std;
vector<int>who[21];
int n;
int ans = 0;
void f(int i){
if(i == n+1){
for(int i=1; i<=n; i++){
int sz = who[i].size();
if(sz == i){
ans++;
break;
}
}
return ;
}
for(int j=1; j<=n; j++){
who[j].push_back(i);
f(i+1);
who[j].pop_back();
}
}
int main(){
cin >> n;
f(1);
cout << ans << '\n';
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
9 ms |
284 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
9 ms |
284 KB |
Output is correct |
6 |
Execution timed out |
1063 ms |
204 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
1 ms |
204 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
9 ms |
284 KB |
Output is correct |
6 |
Execution timed out |
1063 ms |
204 KB |
Time limit exceeded |
7 |
Halted |
0 ms |
0 KB |
- |