#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
#define file(s) if (fopen(s".in", "r")) freopen(s".in", "r", stdin), freopen(s".out", "w", stdout)
#define ios ios_base::sync_with_stdio(0), cin.tie(0)
using namespace std;
typedef long long ll;
const int N = 1e5 + 5;
const int mod = 1e9 + 7;
const int INF = 1e9;
const double PI = acos(-1.0);
vector < int > vec;
int n, a[20], cnt;
void rec(int i, int mx = 1) {
if (i == n + 1) {
++cnt;
for (int i = 0; i < vec.size(); ++i) {
if (vec[i] != a[i + 1])
return;
}
cout << cnt;
exit(0);
}
for (int j = 1; j <= min(i, mx + 1); ++j) {
vec.push_back(j);
rec(i + 1, max(j, mx));
vec.pop_back();
}
}
int main() {
cin >> n;
for (int i = 1; i <= n; ++i) {
cin >> a[i];
}
rec(1);
}
/**
clock() / (double)CLOCKS_PER_SEC < 1.9
*/
Compilation message
teams.cpp: In function 'void rec(int, int)':
teams.cpp:23:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < vec.size(); ++i) {
~~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
384 KB |
Output is correct |
2 |
Correct |
2 ms |
256 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
4 |
Correct |
2 ms |
384 KB |
Output is correct |
5 |
Correct |
2 ms |
428 KB |
Output is correct |
6 |
Correct |
3 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
256 KB |
Output is correct |
2 |
Correct |
3 ms |
384 KB |
Output is correct |
3 |
Correct |
2 ms |
256 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
170 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1084 ms |
256 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
256 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
1052 ms |
256 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
2 ms |
384 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |