oj.uz

Submission #865932

# Submission time Handle Problem Language Result Execution time Memory
865932 2023-10-25T04:04:59 Z phoenix0423 Growing Vegetable is Fun 3 (JOI19_ho_t3) C++17
100 / 100
 70 ms 173648 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pll;
#define fastio ios::sync_with_stdio(false), cin.tie(0)
// #pragma GCC optimize("Ofast")
#define pb push_back
#define eb emplace_back
#define f first
#define s second
#define lowbit(x) x&-x
#define ckmin(a, b) a = min(a, b)
#define ckmax(a, b) a = max(a, b)
const int maxn = 400 + 5;
const int INF = 1e9;
int dp[3][maxn][maxn][maxn];
int cnt[3][maxn];

int main(void){
	fastio;
	int n;
	cin>>n;
	string s;
	cin>>s;
	vector<vector<int>> pos(3);
	for(int i = 0; i < n; i++){
		if(i) for(int j = 0; j < 3; j++) cnt[j][i] = cnt[j][i - 1];
		if(s[i] == 'R') pos[0].pb(i), cnt[0][i] ++;
		else if(s[i] == 'Y') pos[1].pb(i), cnt[1][i] ++;
		else pos[2].pb(i), cnt[2][i] ++;
	}
	for(int i = 0; i < 3; i++){
		if(pos[i].size() > (n + 1) / 2){
			cout<<-1<<"\n";
			return 0;
		}
	}
	for(int i = 0; i < 3; i++) for(int j = 0; j <= pos[0].size(); j++) for(int k = 0; k <= pos[1].size(); k++) for(int l = 0; l <= pos[2].size(); l++) dp[i][j][k][l] = INF;
	if(pos[0].size()) dp[0][1][0][0] = pos[0][0];
	if(pos[1].size()) dp[1][0][1][0] = pos[1][0];
	if(pos[2].size()) dp[2][0][0][1] = pos[2][0];
	for(int i = 2; i <= n; i++){
		for(int a = 0; a <= pos[0].size(); a++){
			for(int b = 0; b <= pos[1].size(); b++){
				int c = i - a - b;
				if(c > pos[2].size()) continue;
				for(int lst = 0; lst < 3; lst++) dp[lst][a][b][c] = INF;
				if(a) dp[0][a][b][c] = min(dp[1][a - 1][b][c], dp[2][a - 1][b][c]) + abs(cnt[1][pos[0][a - 1]] - b) + abs(cnt[2][pos[0][a - 1]] - c);
				if(b) dp[1][a][b][c] = min(dp[0][a][b - 1][c], dp[2][a][b - 1][c]) + abs(cnt[0][pos[1][b - 1]] - a) + abs(cnt[2][pos[1][b - 1]] - c);
				if(c) dp[2][a][b][c] = min(dp[0][a][b][c - 1], dp[1][a][b][c - 1]) + abs(cnt[0][pos[2][c - 1]] - a) + abs(cnt[1][pos[2][c - 1]] - b);
			}
		}
	}
	int ans = INF;
	for(int i = 0; i < 3; i++) ans = min(ans, dp[i][pos[0].size()][pos[1].size()][pos[2].size()]);
	cout<<ans / 2<<"\n";
}

Compilation message

joi2019_ho_t3.cpp: In function 'int main()':
joi2019_ho_t3.cpp:33:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   33 |   if(pos[i].size() > (n + 1) / 2){
      |      ~~~~~~~~~~~~~~^~~~~~~~~~~~~
joi2019_ho_t3.cpp:38:46: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 0; i < 3; i++) for(int j = 0; j <= pos[0].size(); j++) for(int k = 0; k <= pos[1].size(); k++) for(int l = 0; l <= pos[2].size(); l++) dp[i][j][k][l] = INF;
      |                                            ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:38:86: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 0; i < 3; i++) for(int j = 0; j <= pos[0].size(); j++) for(int k = 0; k <= pos[1].size(); k++) for(int l = 0; l <= pos[2].size(); l++) dp[i][j][k][l] = INF;
      |                                                                                    ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:38:126: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int i = 0; i < 3; i++) for(int j = 0; j <= pos[0].size(); j++) for(int k = 0; k <= pos[1].size(); k++) for(int l = 0; l <= pos[2].size(); l++) dp[i][j][k][l] = INF;
      |                                                                                                                            ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:43:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |   for(int a = 0; a <= pos[0].size(); a++){
      |                  ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:44:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |    for(int b = 0; b <= pos[1].size(); b++){
      |                   ~~^~~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:46:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |     if(c > pos[2].size()) continue;
      |        ~~^~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 14684 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 2 ms 16848 KB Output is correct
9 Correct 2 ms 16732 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 14684 KB Output is correct
12 Correct 2 ms 14936 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 1 ms 12636 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 460 KB Output is correct

Subtask #2
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 14684 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 2 ms 16848 KB Output is correct
9 Correct 2 ms 16732 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 14684 KB Output is correct
12 Correct 2 ms 14936 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 1 ms 12636 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 460 KB Output is correct
18 Correct 5 ms 49500 KB Output is correct
19 Correct 5 ms 41308 KB Output is correct
20 Correct 6 ms 53852 KB Output is correct
21 Correct 5 ms 43356 KB Output is correct
22 Correct 5 ms 51804 KB Output is correct
23 Correct 4 ms 37216 KB Output is correct
24 Correct 3 ms 25080 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 6 ms 57700 KB Output is correct
28 Correct 5 ms 45576 KB Output is correct
29 Correct 5 ms 47460 KB Output is correct
30 Correct 4 ms 37220 KB Output is correct
31 Correct 4 ms 35176 KB Output is correct
32 Correct 5 ms 39272 KB Output is correct
33 Correct 0 ms 352 KB Output is correct
34 Correct 0 ms 356 KB Output is correct
35 Correct 5 ms 49508 KB Output is correct
36 Correct 5 ms 43364 KB Output is correct
37 Correct 3 ms 31076 KB Output is correct
38 Correct 3 ms 33124 KB Output is correct
39 Correct 4 ms 41316 KB Output is correct
40 Correct 0 ms 356 KB Output is correct
41 Correct 0 ms 472 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 8544 KB Output is correct
2 Correct 12 ms 115784 KB Output is correct
3 Correct 13 ms 113960 KB Output is correct
4 Correct 12 ms 114012 KB Output is correct
5 Correct 12 ms 113752 KB Output is correct
6 Correct 12 ms 113784 KB Output is correct
7 Correct 12 ms 113756 KB Output is correct
8 Correct 12 ms 113752 KB Output is correct
9 Correct 12 ms 113716 KB Output is correct
10 Correct 12 ms 115804 KB Output is correct
11 Correct 12 ms 113756 KB Output is correct
12 Correct 11 ms 113904 KB Output is correct
13 Correct 12 ms 116568 KB Output is correct
14 Correct 11 ms 112988 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #4
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6492 KB Output is correct
2 Correct 1 ms 6492 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 2 ms 10588 KB Output is correct
5 Correct 2 ms 14684 KB Output is correct
6 Correct 2 ms 16732 KB Output is correct
7 Correct 2 ms 18780 KB Output is correct
8 Correct 2 ms 16848 KB Output is correct
9 Correct 2 ms 16732 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2 ms 14684 KB Output is correct
12 Correct 2 ms 14936 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 2 ms 16732 KB Output is correct
15 Correct 1 ms 12636 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 460 KB Output is correct
18 Correct 5 ms 49500 KB Output is correct
19 Correct 5 ms 41308 KB Output is correct
20 Correct 6 ms 53852 KB Output is correct
21 Correct 5 ms 43356 KB Output is correct
22 Correct 5 ms 51804 KB Output is correct
23 Correct 4 ms 37216 KB Output is correct
24 Correct 3 ms 25080 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 6 ms 57700 KB Output is correct
28 Correct 5 ms 45576 KB Output is correct
29 Correct 5 ms 47460 KB Output is correct
30 Correct 4 ms 37220 KB Output is correct
31 Correct 4 ms 35176 KB Output is correct
32 Correct 5 ms 39272 KB Output is correct
33 Correct 0 ms 352 KB Output is correct
34 Correct 0 ms 356 KB Output is correct
35 Correct 5 ms 49508 KB Output is correct
36 Correct 5 ms 43364 KB Output is correct
37 Correct 3 ms 31076 KB Output is correct
38 Correct 3 ms 33124 KB Output is correct
39 Correct 4 ms 41316 KB Output is correct
40 Correct 0 ms 356 KB Output is correct
41 Correct 0 ms 472 KB Output is correct
42 Correct 1 ms 8544 KB Output is correct
43 Correct 12 ms 115784 KB Output is correct
44 Correct 13 ms 113960 KB Output is correct
45 Correct 12 ms 114012 KB Output is correct
46 Correct 12 ms 113752 KB Output is correct
47 Correct 12 ms 113784 KB Output is correct
48 Correct 12 ms 113756 KB Output is correct
49 Correct 12 ms 113752 KB Output is correct
50 Correct 12 ms 113716 KB Output is correct
51 Correct 12 ms 115804 KB Output is correct
52 Correct 12 ms 113756 KB Output is correct
53 Correct 11 ms 113904 KB Output is correct
54 Correct 12 ms 116568 KB Output is correct
55 Correct 11 ms 112988 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 348 KB Output is correct
58 Correct 66 ms 161752 KB Output is correct
59 Correct 65 ms 162392 KB Output is correct
60 Correct 67 ms 165764 KB Output is correct
61 Correct 64 ms 163408 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 19 ms 120872 KB Output is correct
64 Correct 36 ms 136408 KB Output is correct
65 Correct 47 ms 141136 KB Output is correct
66 Correct 63 ms 165136 KB Output is correct
67 Correct 59 ms 148828 KB Output is correct
68 Correct 63 ms 163152 KB Output is correct
69 Correct 65 ms 164168 KB Output is correct
70 Correct 63 ms 160852 KB Output is correct
71 Correct 70 ms 173648 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 0 ms 348 KB Output is correct