#include <bits/stdc++.h>
using namespace std;
using ll = long long int;
const int maxn = 4e2;
const int oo = 1e9 + 7;
const ll inf = 1e18;
int n, k, tol = 0;
int pre[maxn], dp[maxn][maxn][maxn];
int recursive(int l, int r, int m) {
if (m >= k) {
dp[l][r][m] = 0;
return 0;
}
int h = tol - m - (pre[r] - pre[l - 1]);
if (h >= k) {
dp[l][r][m] = 1;
return 1;
}
dp[l][r][m] = (!recursive(l + 1, r, h) | !recursive(l, r - 1, h));
return dp[l][r][m];
}
int main() {
// #ifndef ONLINE_JUDGE
// freopen("TASK.inp", "r", stdin);
// freopen("TASK.out", "w", stdout);
// #endif
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
cin >> n >> k;
string s;
cin >> s;
s = ' ' + s;
for (int i = 1; i <= n; i++) {
pre[i] = pre[i - 1] + (s[i] == 'C');
if (s[i] == 'C')
tol++;
}
if (recursive(1, n, 0))
cout << "DA";
else
cout << "NE";
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
3 ms |
10756 KB |
Output is correct |
3 |
Correct |
1 ms |
4432 KB |
Output is correct |
4 |
Correct |
3 ms |
12624 KB |
Output is correct |
5 |
Correct |
2 ms |
8528 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
3 ms |
10756 KB |
Output is correct |
3 |
Correct |
1 ms |
4432 KB |
Output is correct |
4 |
Correct |
3 ms |
12624 KB |
Output is correct |
5 |
Correct |
2 ms |
8528 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
18 ms |
14672 KB |
Output is correct |
8 |
Correct |
11 ms |
6480 KB |
Output is correct |
9 |
Execution timed out |
1080 ms |
16872 KB |
Time limit exceeded |
10 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4432 KB |
Output is correct |
2 |
Correct |
3 ms |
10756 KB |
Output is correct |
3 |
Correct |
1 ms |
4432 KB |
Output is correct |
4 |
Correct |
3 ms |
12624 KB |
Output is correct |
5 |
Correct |
2 ms |
8528 KB |
Output is correct |
6 |
Correct |
2 ms |
6480 KB |
Output is correct |
7 |
Correct |
18 ms |
14672 KB |
Output is correct |
8 |
Correct |
11 ms |
6480 KB |
Output is correct |
9 |
Execution timed out |
1080 ms |
16872 KB |
Time limit exceeded |
10 |
Halted |
0 ms |
0 KB |
- |