oj.uz

Submission #208506

# Submission time Handle Problem Language Result Execution time Memory
208506 2020-03-11T11:17:56 Z Siberian Growing Vegetable is Fun 3 (JOI19_ho_t3) C++14
100 / 100
 278 ms 134776 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using ld = long double;
using ull = unsigned long long;
#define all(x) x.begin(), x.end()

template <typename T1, typename T2> inline void chkmin(T1 &x, const T2 & y) {if (x > y) x = y;}
template <typename T1, typename T2> inline void chkmax(T1 &x, const T2 & y) {if (x < y) x = y;}

const int MAXN = 410;

int n;
int a[MAXN];
int pos[MAXN][3];
int cnt[MAXN][3];

void read() {
	cin >> n;
	for (int i = 1; i <= n; i++) {
		char x;
		cin >> x;
		if (x == 'R') a[i] = 0;
		else if (x == 'G') a[i] = 1;
		else a[i] = 2;
		for (int j = 0; j < 3; j++)
			cnt[i][j] = cnt[i - 1][j];
		cnt[i][a[i]]++;
		pos[cnt[i][a[i]]][a[i]] = i;
	}
}

const int INF = 1e9 + 10;
vector<vector<vector<vector<int>>>> dp;

void build() {
	dp.assign(cnt[n][0] + 1, vector<vector<vector<int>>> (cnt[n][1] + 1, vector<vector<int>> (cnt[n][2] + 1, vector<int> (3, INF))));
	dp[0][0][0][0] = dp[0][0][0][1] = dp[0][0][0][2] = 0;
}

void calc() {
	for (int i = 0; i <= cnt[n][0]; i++) {
		for (int j = 0; j <= cnt[n][1]; j++) {
			for (int k = 0; k <= cnt[n][2]; k++) {
				for (int ch = 0; ch < 3; ch++) {
					if (ch != 0 && i + 1 <= cnt[n][0]) {
						int p = pos[i + 1][0];
						chkmin(dp[i + 1][j][k][0], dp[i][j][k][ch] + max(0, cnt[p][1] - j) + max(0, cnt[p][2] - k));
					}
					if (ch != 1 && j + 1 <= cnt[n][1]) {
						int p = pos[j + 1][1];
						chkmin(dp[i][j + 1][k][1], dp[i][j][k][ch] + max(0, cnt[p][0] - i) + max(0, cnt[p][2] - k));
					}
					if (ch != 2 && k + 1 <= cnt[n][2]) {
						int p = pos[k + 1][2];
						chkmin(dp[i][j][k + 1][2], dp[i][j][k][ch] + max(0, cnt[p][0] - i) + max(0, cnt[p][1] - j));
					}
				}
			}
		}
	}
}

int ans;

void make_ans() {
	ans = INF;
	for (int i = 0; i < 3; i++) {
		chkmin(ans, dp[cnt[n][0]][cnt[n][1]][cnt[n][2]][i]);
	}
	if (ans == INF) ans = -1;
}

void run() {
	build();
	calc();
	make_ans();
}

void write() {
	cout << ans << endl;
}

signed main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	read();
	run();
	write();
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 380 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 504 KB Output is correct
17 Correct 5 ms 376 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 380 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 504 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 6 ms 888 KB Output is correct
19 Correct 6 ms 888 KB Output is correct
20 Correct 6 ms 888 KB Output is correct
21 Correct 6 ms 888 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 6 ms 888 KB Output is correct
24 Correct 5 ms 760 KB Output is correct
25 Correct 5 ms 504 KB Output is correct
26 Correct 5 ms 504 KB Output is correct
27 Correct 6 ms 756 KB Output is correct
28 Correct 6 ms 888 KB Output is correct
29 Correct 7 ms 888 KB Output is correct
30 Correct 7 ms 888 KB Output is correct
31 Correct 6 ms 888 KB Output is correct
32 Correct 5 ms 888 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 5 ms 632 KB Output is correct
35 Correct 6 ms 760 KB Output is correct
36 Correct 6 ms 888 KB Output is correct
37 Correct 6 ms 760 KB Output is correct
38 Correct 6 ms 888 KB Output is correct
39 Correct 6 ms 888 KB Output is correct
40 Correct 6 ms 376 KB Output is correct
41 Correct 5 ms 632 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 11 ms 3832 KB Output is correct
3 Correct 10 ms 3832 KB Output is correct
4 Correct 11 ms 3832 KB Output is correct
5 Correct 10 ms 3832 KB Output is correct
6 Correct 14 ms 3832 KB Output is correct
7 Correct 13 ms 3832 KB Output is correct
8 Correct 11 ms 3832 KB Output is correct
9 Correct 10 ms 3836 KB Output is correct
10 Correct 10 ms 3832 KB Output is correct
11 Correct 10 ms 3832 KB Output is correct
12 Correct 6 ms 1276 KB Output is correct
13 Correct 7 ms 2040 KB Output is correct
14 Correct 8 ms 2680 KB Output is correct
15 Correct 12 ms 3832 KB Output is correct
16 Correct 10 ms 3832 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 380 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 504 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 6 ms 888 KB Output is correct
19 Correct 6 ms 888 KB Output is correct
20 Correct 6 ms 888 KB Output is correct
21 Correct 6 ms 888 KB Output is correct
22 Correct 5 ms 760 KB Output is correct
23 Correct 6 ms 888 KB Output is correct
24 Correct 5 ms 760 KB Output is correct
25 Correct 5 ms 504 KB Output is correct
26 Correct 5 ms 504 KB Output is correct
27 Correct 6 ms 756 KB Output is correct
28 Correct 6 ms 888 KB Output is correct
29 Correct 7 ms 888 KB Output is correct
30 Correct 7 ms 888 KB Output is correct
31 Correct 6 ms 888 KB Output is correct
32 Correct 5 ms 888 KB Output is correct
33 Correct 5 ms 504 KB Output is correct
34 Correct 5 ms 632 KB Output is correct
35 Correct 6 ms 760 KB Output is correct
36 Correct 6 ms 888 KB Output is correct
37 Correct 6 ms 760 KB Output is correct
38 Correct 6 ms 888 KB Output is correct
39 Correct 6 ms 888 KB Output is correct
40 Correct 6 ms 376 KB Output is correct
41 Correct 5 ms 632 KB Output is correct
42 Correct 5 ms 376 KB Output is correct
43 Correct 11 ms 3832 KB Output is correct
44 Correct 10 ms 3832 KB Output is correct
45 Correct 11 ms 3832 KB Output is correct
46 Correct 10 ms 3832 KB Output is correct
47 Correct 14 ms 3832 KB Output is correct
48 Correct 13 ms 3832 KB Output is correct
49 Correct 11 ms 3832 KB Output is correct
50 Correct 10 ms 3836 KB Output is correct
51 Correct 10 ms 3832 KB Output is correct
52 Correct 10 ms 3832 KB Output is correct
53 Correct 6 ms 1276 KB Output is correct
54 Correct 7 ms 2040 KB Output is correct
55 Correct 8 ms 2680 KB Output is correct
56 Correct 12 ms 3832 KB Output is correct
57 Correct 10 ms 3832 KB Output is correct
58 Correct 235 ms 133240 KB Output is correct
59 Correct 278 ms 133244 KB Output is correct
60 Correct 239 ms 132396 KB Output is correct
61 Correct 236 ms 133880 KB Output is correct
62 Correct 25 ms 12412 KB Output is correct
63 Correct 37 ms 20728 KB Output is correct
64 Correct 118 ms 66680 KB Output is correct
65 Correct 164 ms 95608 KB Output is correct
66 Correct 223 ms 131832 KB Output is correct
67 Correct 230 ms 131832 KB Output is correct
68 Correct 244 ms 133880 KB Output is correct
69 Correct 237 ms 134776 KB Output is correct
70 Correct 233 ms 134136 KB Output is correct
71 Correct 234 ms 131064 KB Output is correct
72 Correct 60 ms 34168 KB Output is correct
73 Correct 20 ms 10616 KB Output is correct