#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const int inf = 1e9;
signed main() {
cin.tie(0)->sync_with_stdio(0);
int n;
string s;
cin >> n >> s;
vector memo(n, vector(n, -1));
auto dp = [&](auto& dp, int l, int ne)->int {
if (ne == n) return 0;
if (memo[l][ne] !=-1) return memo[l][ne];
vector seen(10, 0);
int res = inf;
int cnt = 0;
for (int r = l+1; r < n; r++) {
if (s[r] == 'e') {
if (r >= ne) cnt++;
continue;
}
if (seen[s[r] % 10]) continue;
seen[s[r] % 10] = 1;
if (cnt == 0) res = min(res, dp(dp, r, ne) + 2);
else {
int nne = r+1;
while (nne <n && s[nne] != 'e') nne++;
int cn = 0;
for (int i = ne; i < n; i++)
if (s[i] == 'e') cn++;
else break;
res = min(res, dp(dp, ne, nne) + 2 + (r - (ne + cn-1)) + cnt*2 - cn);
}
}
return memo[l][ne] = res;
};
int ne = find(s.begin(), s.end(), 'e') - s.begin();
cout << dp(dp, 0, ne)-1;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
4 ms |
1364 KB |
Output isn't correct |
| 2 |
Incorrect |
3 ms |
1088 KB |
Output isn't correct |
| 3 |
Incorrect |
3 ms |
980 KB |
Output isn't correct |
| 4 |
Incorrect |
4 ms |
980 KB |
Output isn't correct |
| 5 |
Incorrect |
4 ms |
980 KB |
Output isn't correct |
| 6 |
Incorrect |
5 ms |
1364 KB |
Output isn't correct |
| 7 |
Incorrect |
5 ms |
1340 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 9 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 10 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 11 |
Correct |
0 ms |
316 KB |
Output is correct |
| 12 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
| 13 |
Incorrect |
4 ms |
1376 KB |
Output isn't correct |
| 14 |
Incorrect |
3 ms |
1108 KB |
Output isn't correct |
| 15 |
Incorrect |
3 ms |
980 KB |
Output isn't correct |
| 16 |
Incorrect |
3 ms |
1108 KB |
Output isn't correct |
| 17 |
Incorrect |
4 ms |
1236 KB |
Output isn't correct |
| 18 |
Incorrect |
3 ms |
956 KB |
Output isn't correct |
| 19 |
Incorrect |
3 ms |
852 KB |
Output isn't correct |
| 20 |
Incorrect |
3 ms |
852 KB |
Output isn't correct |
| 21 |
Incorrect |
4 ms |
980 KB |
Output isn't correct |
| 22 |
Incorrect |
4 ms |
980 KB |
Output isn't correct |
| 23 |
Incorrect |
3 ms |
1352 KB |
Output isn't correct |
| 24 |
Incorrect |
3 ms |
1108 KB |
Output isn't correct |
| 25 |
Incorrect |
3 ms |
1088 KB |
Output isn't correct |
| 26 |
Incorrect |
3 ms |
1236 KB |
Output isn't correct |
| 27 |
Incorrect |
5 ms |
1236 KB |
Output isn't correct |
| 28 |
Incorrect |
5 ms |
1304 KB |
Output isn't correct |
| 29 |
Incorrect |
4 ms |
1364 KB |
Output isn't correct |
| 30 |
Incorrect |
3 ms |
1236 KB |
Output isn't correct |
| 31 |
Incorrect |
3 ms |
1108 KB |
Output isn't correct |
| 32 |
Incorrect |
4 ms |
1216 KB |
Output isn't correct |
| 33 |
Incorrect |
3 ms |
1216 KB |
Output isn't correct |
| 34 |
Incorrect |
4 ms |
1088 KB |
Output isn't correct |
| 35 |
Incorrect |
5 ms |
1108 KB |
Output isn't correct |
| 36 |
Incorrect |
5 ms |
1364 KB |
Output isn't correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
429 ms |
96528 KB |
Output isn't correct |
| 2 |
Incorrect |
386 ms |
99196 KB |
Output isn't correct |
| 3 |
Incorrect |
133 ms |
31564 KB |
Output isn't correct |
| 4 |
Incorrect |
414 ms |
96404 KB |
Output isn't correct |
| 5 |
Incorrect |
413 ms |
96652 KB |
Output isn't correct |
| 6 |
Incorrect |
374 ms |
98756 KB |
Output isn't correct |
| 7 |
Incorrect |
415 ms |
97652 KB |
Output isn't correct |
| 8 |
Incorrect |
424 ms |
95240 KB |
Output isn't correct |
| 9 |
Incorrect |
386 ms |
99196 KB |
Output isn't correct |
| 10 |
Incorrect |
392 ms |
99192 KB |
Output isn't correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Runtime error |
237 ms |
524288 KB |
Execution killed with signal 9 |
| 2 |
Runtime error |
217 ms |
524288 KB |
Execution killed with signal 9 |
| 3 |
Runtime error |
207 ms |
524288 KB |
Execution killed with signal 9 |
| 4 |
Runtime error |
203 ms |
524288 KB |
Execution killed with signal 9 |
| 5 |
Runtime error |
209 ms |
524288 KB |
Execution killed with signal 9 |
| 6 |
Runtime error |
226 ms |
524288 KB |
Execution killed with signal 9 |
| 7 |
Runtime error |
213 ms |
524288 KB |
Execution killed with signal 9 |
| 8 |
Runtime error |
220 ms |
524288 KB |
Execution killed with signal 9 |
| 9 |
Runtime error |
215 ms |
524288 KB |
Execution killed with signal 9 |
| 10 |
Runtime error |
210 ms |
524288 KB |
Execution killed with signal 9 |
| 11 |
Runtime error |
210 ms |
524288 KB |
Execution killed with signal 9 |
| 12 |
Runtime error |
211 ms |
524288 KB |
Execution killed with signal 9 |
| 13 |
Runtime error |
206 ms |
524288 KB |
Execution killed with signal 9 |
| 14 |
Runtime error |
211 ms |
524288 KB |
Execution killed with signal 9 |
| 15 |
Runtime error |
212 ms |
524288 KB |
Execution killed with signal 9 |
| 16 |
Runtime error |
214 ms |
524288 KB |
Execution killed with signal 9 |
| 17 |
Runtime error |
210 ms |
524288 KB |
Execution killed with signal 9 |
| 18 |
Runtime error |
207 ms |
524288 KB |
Execution killed with signal 9 |
| 19 |
Runtime error |
216 ms |
524288 KB |
Execution killed with signal 9 |
| 20 |
Runtime error |
199 ms |
524288 KB |
Execution killed with signal 9 |
