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Submission #370375

# Submission time Handle Problem Language Result Execution time Memory
370375 2021-02-23T21:55:17 Z shivensinha4 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 451 ms 757612 KB 
#pragma GCC optimize ("unroll-loops")
#include "bits/stdc++.h"
using namespace std;
#define for_(i, s, e) for (int i = s; i < (int) e; i++)
#define for__(i, s, e) for (ll i = s; i < e; i++)
typedef long long ll;
typedef vector<int> vi;
typedef array<int, 2> ii;
#define endl '\n'

int main() {
#ifdef mlocal
	freopen("test.in", "r", stdin);
#endif
	
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	
	int n; string s; cin >> n >> s;
	
	vi cpos[3];
	int nums[n], dp[n+1][n+1][n+1][3], t[3], ct[3], cost[3], pref[n][3];
	memset(dp, 0x3f, sizeof(dp)); memset(pref, 0, sizeof(pref));
	
	for_(i, 0, n) {
		if (s[i] == 'G') nums[i] = 1;
		else if (s[i] == 'Y') nums[i] = 2;
		else nums[i] = 0;
		
		cpos[nums[i]].push_back(i);
		pref[i][nums[i]]++;
	}
	
	for_(i, 1, n) for_(j, 0, 3) pref[i][j] += pref[i-1][j];
	
	const int INF = 1e9;
	for_(i, 0, 3) ct[i] = cpos[i].size();
	
	int ans, pos;
	for (int i = n; i >= 0; i--) for (t[0] = 0; t[0] <= min(ct[0], i); t[0]++) for (t[1] = 0; t[1] <= min(ct[1], i-t[0]); t[1]++) {
		t[2] = i-t[0]-t[1];
		if (t[2] > ct[2]) continue;
		for_(c, 0, 3) {
			if (t[c] < ct[c]) {
				pos = cpos[c][t[c]];
				cost[c] = pos - (pos > 0 ? min(pref[pos-1][0], t[0]) + min(pref[pos-1][1], t[1]) + min(pref[pos-1][2], t[2]) : 0);
			} else cost[c] = -1;
		}
		
		for_(last, 0, 3) {
			ans = INF;
			if (i == n) ans = (t[0] == ct[0] and t[1] == ct[1] and t[2] == ct[2]) ? 0 : INF;
			else for_(c, 0, 3) if (c != last and ct[c] > t[c]) {
				ans = min(ans, dp[i+1][t[0]+(c==0)][t[1]+(c==1)][c] + cost[c]);
			}
			
			dp[i][t[0]][t[1]][last] = ans;
		}
	}
	
	ans = min({dp[0][0][0][1], dp[0][0][0][0]});
	
	cout << (ans >= INF ? -1 : ans) << endl;
	
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 2 ms 2924 KB Output is correct
19 Correct 2 ms 2924 KB Output is correct
20 Correct 2 ms 2924 KB Output is correct
21 Correct 2 ms 2924 KB Output is correct
22 Correct 2 ms 2924 KB Output is correct
23 Correct 2 ms 2924 KB Output is correct
24 Correct 2 ms 2924 KB Output is correct
25 Correct 3 ms 2924 KB Output is correct
26 Correct 2 ms 2924 KB Output is correct
27 Correct 2 ms 2924 KB Output is correct
28 Correct 2 ms 3072 KB Output is correct
29 Correct 2 ms 2924 KB Output is correct
30 Correct 2 ms 2924 KB Output is correct
31 Correct 2 ms 2924 KB Output is correct
32 Correct 2 ms 2924 KB Output is correct
33 Correct 2 ms 2796 KB Output is correct
34 Correct 2 ms 2796 KB Output is correct
35 Correct 2 ms 2796 KB Output is correct
36 Correct 2 ms 3072 KB Output is correct
37 Correct 2 ms 2668 KB Output is correct
38 Correct 2 ms 2924 KB Output is correct
39 Correct 2 ms 2924 KB Output is correct
40 Correct 2 ms 2796 KB Output is correct
41 Correct 2 ms 2924 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 392 ms 757496 KB Output is correct
3 Correct 388 ms 752100 KB Output is correct
4 Correct 393 ms 757484 KB Output is correct
5 Correct 397 ms 757500 KB Output is correct
6 Correct 417 ms 757484 KB Output is correct
7 Correct 396 ms 751852 KB Output is correct
8 Correct 394 ms 751784 KB Output is correct
9 Correct 391 ms 746208 KB Output is correct
10 Correct 391 ms 757484 KB Output is correct
11 Correct 414 ms 757484 KB Output is correct
12 Correct 59 ms 104428 KB Output is correct
13 Correct 135 ms 244588 KB Output is correct
14 Correct 227 ms 426092 KB Output is correct
15 Correct 392 ms 757484 KB Output is correct
16 Correct 394 ms 757612 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 512 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 2 ms 2924 KB Output is correct
19 Correct 2 ms 2924 KB Output is correct
20 Correct 2 ms 2924 KB Output is correct
21 Correct 2 ms 2924 KB Output is correct
22 Correct 2 ms 2924 KB Output is correct
23 Correct 2 ms 2924 KB Output is correct
24 Correct 2 ms 2924 KB Output is correct
25 Correct 3 ms 2924 KB Output is correct
26 Correct 2 ms 2924 KB Output is correct
27 Correct 2 ms 2924 KB Output is correct
28 Correct 2 ms 3072 KB Output is correct
29 Correct 2 ms 2924 KB Output is correct
30 Correct 2 ms 2924 KB Output is correct
31 Correct 2 ms 2924 KB Output is correct
32 Correct 2 ms 2924 KB Output is correct
33 Correct 2 ms 2796 KB Output is correct
34 Correct 2 ms 2796 KB Output is correct
35 Correct 2 ms 2796 KB Output is correct
36 Correct 2 ms 3072 KB Output is correct
37 Correct 2 ms 2668 KB Output is correct
38 Correct 2 ms 2924 KB Output is correct
39 Correct 2 ms 2924 KB Output is correct
40 Correct 2 ms 2796 KB Output is correct
41 Correct 2 ms 2924 KB Output is correct
42 Correct 1 ms 364 KB Output is correct
43 Correct 392 ms 757496 KB Output is correct
44 Correct 388 ms 752100 KB Output is correct
45 Correct 393 ms 757484 KB Output is correct
46 Correct 397 ms 757500 KB Output is correct
47 Correct 417 ms 757484 KB Output is correct
48 Correct 396 ms 751852 KB Output is correct
49 Correct 394 ms 751784 KB Output is correct
50 Correct 391 ms 746208 KB Output is correct
51 Correct 391 ms 757484 KB Output is correct
52 Correct 414 ms 757484 KB Output is correct
53 Correct 59 ms 104428 KB Output is correct
54 Correct 135 ms 244588 KB Output is correct
55 Correct 227 ms 426092 KB Output is correct
56 Correct 392 ms 757484 KB Output is correct
57 Correct 394 ms 757612 KB Output is correct
58 Correct 436 ms 757484 KB Output is correct
59 Correct 433 ms 757484 KB Output is correct
60 Correct 444 ms 746348 KB Output is correct
61 Correct 443 ms 751776 KB Output is correct
62 Correct 417 ms 757484 KB Output is correct
63 Correct 410 ms 757612 KB Output is correct
64 Correct 430 ms 757484 KB Output is correct
65 Correct 421 ms 751980 KB Output is correct
66 Correct 434 ms 740716 KB Output is correct
67 Correct 438 ms 757432 KB Output is correct
68 Correct 433 ms 751852 KB Output is correct
69 Correct 436 ms 757484 KB Output is correct
70 Correct 436 ms 757612 KB Output is correct
71 Correct 451 ms 751852 KB Output is correct
72 Correct 391 ms 751852 KB Output is correct
73 Correct 389 ms 757612 KB Output is correct