Submission #256370

# Submission time Handle Problem Language Result Execution time Memory
256370 2020-08-02T15:35:28 Z Saboon Vim (BOI13_vim) C++14
33.3333 / 100
38 ms 1440 KB
#include <bits/stdc++.h>
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef long long ll;
 
const int maxn = 500 + 10;

int nex[maxn][12];
int dp[maxn][maxn];

int main(){
	ios_base::sync_with_stdio(false);
	int n;
	string s;
	cin >> n >> s;
	for (int i = 0; i < 10; i++){
		int last = -1;
		for (int j = n-1; j >= 0; j--){
			if (last == -1)
				nex[j][i] = j;
			else
				nex[j][i] = last;
			if ((int)(s[j] - 'a') == i and s[j] != 'e')
				last = j;
		}
	}
	vector<int> e;
	for (int i = 0; i < n; i++)
		if (s[i] == 'e')
			e.push_back(i);
	if (e.empty())
		return cout << 0 << endl, 0;
	int laste = e.back();
	int m = e.size();
	memset(dp, 63, sizeof dp);
	dp[0][0] = 0;
	for (int i = 0; i < m; i++){
		for (int j = 0; j <= i; j++){
			int idx = 0;
			if (j > 0){
				idx = e[j-1];
				while (s[idx] == 'e')
					idx ++;
			}
			int cnt = 0;
			while (idx < laste){
				int mxm = idx;
				cnt += 2;
				for (int c = 0; c < 10; c++){
					if (nex[idx][c] == idx)
						continue;
					mxm = max(mxm, nex[idx][c]);
					int it = lower_bound(e.begin(), e.end(), nex[idx][c]) - e.begin();
					if (it == i)
						continue;
					dp[it][i+1] = min(dp[it][i+1], dp[i][j] + cnt + (nex[idx][c]-e[i]) + (it-i));
				}
				idx = mxm;
			}
		}
	}
	int answer = 4*n;
	for (int i = 1; i <= m; i++)
		answer = min(answer, dp[m][i]);
	cout << answer << endl;
}
# Verdict Execution time Memory Grader output
1 Correct 15 ms 1408 KB Output is correct
2 Incorrect 9 ms 1408 KB Output isn't correct
3 Incorrect 5 ms 1408 KB Output isn't correct
4 Correct 12 ms 1408 KB Output is correct
5 Correct 5 ms 1408 KB Output is correct
6 Correct 38 ms 1408 KB Output is correct
7 Correct 20 ms 1408 KB Output is correct
8 Correct 1 ms 1408 KB Output is correct
9 Correct 1 ms 1408 KB Output is correct
10 Correct 2 ms 1408 KB Output is correct
11 Correct 1 ms 1408 KB Output is correct
12 Correct 1 ms 1408 KB Output is correct
13 Correct 15 ms 1408 KB Output is correct
14 Incorrect 11 ms 1408 KB Output isn't correct
15 Incorrect 5 ms 1408 KB Output isn't correct
16 Correct 17 ms 1408 KB Output is correct
17 Incorrect 10 ms 1408 KB Output isn't correct
18 Correct 11 ms 1408 KB Output is correct
19 Correct 7 ms 1408 KB Output is correct
20 Correct 9 ms 1408 KB Output is correct
21 Correct 12 ms 1408 KB Output is correct
22 Correct 4 ms 1408 KB Output is correct
23 Incorrect 2 ms 1408 KB Output isn't correct
24 Incorrect 4 ms 1408 KB Output isn't correct
25 Incorrect 5 ms 1408 KB Output isn't correct
26 Correct 16 ms 1408 KB Output is correct
27 Correct 29 ms 1408 KB Output is correct
28 Correct 37 ms 1408 KB Output is correct
29 Correct 23 ms 1408 KB Output is correct
30 Incorrect 8 ms 1408 KB Output isn't correct
31 Incorrect 8 ms 1408 KB Output isn't correct
32 Incorrect 7 ms 1408 KB Output isn't correct
33 Incorrect 16 ms 1408 KB Output isn't correct
34 Correct 19 ms 1440 KB Output is correct
35 Correct 25 ms 1408 KB Output is correct
36 Correct 23 ms 1408 KB Output is correct
# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 1 ms 512 KB Execution killed with signal 11 (could be triggered by violating memory limits)
# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
2 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
3 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Runtime error 2 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Runtime error 2 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
6 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
10 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
11 Runtime error 2 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
12 Runtime error 1 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
13 Runtime error 1 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
14 Runtime error 1 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Runtime error 1 ms 896 KB Execution killed with signal 11 (could be triggered by violating memory limits)
16 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
17 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
18 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
19 Runtime error 1 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)
20 Runtime error 2 ms 768 KB Execution killed with signal 11 (could be triggered by violating memory limits)