Submission #256337

# Submission time Handle Problem Language Result Execution time Memory
256337 2020-08-02T14:43:00 Z shayan_p Vim (BOI13_vim) C++14
42.5 / 100
362 ms 33052 KB
// And you curse yourself for things you never done

#include<bits/stdc++.h>

#define F first
#define S second
#define PB push_back
#define sz(s) int((s).size())
#define bit(n,k) (((n)>>(k))&1)

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;

const int maxn = 70010, mod = 1e9 + 7, inf = 1e9 + 10;

int nxt[maxn][10], lst[10];

map<pii, int> dp;
vector<int> poses;

int solve(int i, int j){
    if(i >= sz(poses))
	return 0;
    if(dp.count({i, j}))
	return dp[{i, j}];
    if(j >= poses[i])
	return dp[{i, j}] =  j - poses[i] + solve( upper_bound(poses.begin(), poses.end(), j) - poses.begin(), poses[i] );
    int ans = inf;
    int pt = lower_bound(nxt[j], nxt[j] + 10, poses[i]) - nxt[j];
    for(int w = 8 ; w >= 0 && nxt[j][w] != j && w >= pt-1; w--)
	ans = min(ans, 2 + solve(i, nxt[j][w]));
    return dp[{i, j}] = ans;
}

int main(){
    ios_base::sync_with_stdio(false); cin.tie(0); cout.tie();

    int n;
    cin >> n;
    string _s, s;
    cin >> _s;
    int ans = 0;
    for(int i = 0; i < n; i++){
	if(_s[i] == 'e')
	    ans+= 2;
	if(_s[i] == 'e' && _s[i + 1] != 'e')
	    poses.PB(sz(s));
	if(_s[i] != 'e')
	    s+= _s[i];	
    }
    memset(lst, -1, sizeof lst);
    memset(nxt, -1, sizeof nxt);
    n = sz(s);
    for(int i = n-1; i >= 0; i--){
	for(int j = 0; j < 9; j++)
	    nxt[i][j] = (lst[j] == -1 ? i : lst[j]);
	sort(nxt[i], nxt[i] + 9);
	nxt[i][9] = inf;
	int id = (s[i] - 'a') - (s[i] > 'e');
	lst[id] = i;
    }
    ans+= solve(0, 0);
    return cout << ans << "\n", 0;
}
# Verdict Execution time Memory Grader output
1 Correct 3 ms 3200 KB Output is correct
2 Incorrect 3 ms 3200 KB Output isn't correct
3 Incorrect 2 ms 3200 KB Output isn't correct
4 Correct 3 ms 3200 KB Output is correct
5 Correct 4 ms 3328 KB Output is correct
6 Correct 4 ms 3328 KB Output is correct
7 Correct 4 ms 3200 KB Output is correct
8 Correct 2 ms 3072 KB Output is correct
9 Correct 2 ms 3072 KB Output is correct
10 Correct 2 ms 3072 KB Output is correct
11 Correct 2 ms 3072 KB Output is correct
12 Correct 2 ms 3072 KB Output is correct
13 Correct 3 ms 3200 KB Output is correct
14 Incorrect 3 ms 3200 KB Output isn't correct
15 Incorrect 3 ms 3200 KB Output isn't correct
16 Incorrect 3 ms 3200 KB Output isn't correct
17 Correct 3 ms 3200 KB Output is correct
18 Correct 3 ms 3200 KB Output is correct
19 Incorrect 3 ms 3200 KB Output isn't correct
20 Correct 3 ms 3200 KB Output is correct
21 Correct 4 ms 3200 KB Output is correct
22 Correct 4 ms 3200 KB Output is correct
23 Correct 4 ms 3200 KB Output is correct
24 Correct 3 ms 3200 KB Output is correct
25 Correct 3 ms 3200 KB Output is correct
26 Correct 3 ms 3200 KB Output is correct
27 Correct 4 ms 3200 KB Output is correct
28 Correct 5 ms 3200 KB Output is correct
29 Incorrect 4 ms 3200 KB Output isn't correct
30 Incorrect 3 ms 3200 KB Output isn't correct
31 Correct 3 ms 3200 KB Output is correct
32 Incorrect 3 ms 3200 KB Output isn't correct
33 Correct 3 ms 3328 KB Output is correct
34 Correct 4 ms 3200 KB Output is correct
35 Correct 4 ms 3328 KB Output is correct
36 Correct 4 ms 3328 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 19 ms 4736 KB Output is correct
2 Correct 32 ms 5752 KB Output is correct
3 Correct 12 ms 4096 KB Output is correct
4 Correct 19 ms 4736 KB Output is correct
5 Incorrect 30 ms 5496 KB Output isn't correct
6 Incorrect 16 ms 4608 KB Output isn't correct
7 Incorrect 18 ms 4736 KB Output isn't correct
8 Incorrect 20 ms 4736 KB Output isn't correct
9 Correct 31 ms 5752 KB Output is correct
10 Incorrect 25 ms 5248 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Incorrect 196 ms 19704 KB Output isn't correct
2 Incorrect 136 ms 16888 KB Output isn't correct
3 Incorrect 160 ms 17528 KB Output isn't correct
4 Incorrect 210 ms 23032 KB Output isn't correct
5 Incorrect 249 ms 23288 KB Output isn't correct
6 Incorrect 255 ms 23928 KB Output isn't correct
7 Incorrect 338 ms 30840 KB Output isn't correct
8 Incorrect 281 ms 26004 KB Output isn't correct
9 Incorrect 277 ms 25336 KB Output isn't correct
10 Incorrect 279 ms 25976 KB Output isn't correct
11 Incorrect 217 ms 22972 KB Output isn't correct
12 Incorrect 257 ms 23288 KB Output isn't correct
13 Incorrect 210 ms 19320 KB Output isn't correct
14 Incorrect 163 ms 19192 KB Output isn't correct
15 Incorrect 362 ms 33052 KB Output isn't correct
16 Incorrect 141 ms 16120 KB Output isn't correct
17 Incorrect 194 ms 19832 KB Output isn't correct
18 Incorrect 154 ms 17528 KB Output isn't correct
19 Incorrect 142 ms 16888 KB Output isn't correct
20 Incorrect 322 ms 29048 KB Output isn't correct