Submission #883061

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
883061	2023-12-04T13:10:57 Z	vjudge1	Growing Vegetable is Fun 3 (JOI19_ho_t3)	C++17	15 / 100	1 ms	2140 KB

joi2019_ho_t3

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int inf = 1e9 + 7;
inline int eval(int x , int y){
	return max(0ll , x-y);
}
inline void ckmin(int &x , int y){
	x = min(x,y);
}
void solve(){
	int n;
	cin >> n;
	string str;
	cin >> str;
	vector < int > ind[3];
	for(int i = 0;i<n;i++){
		if(str[i] == 'R')ind[0].push_back(i);
		else if(str[i] == 'G')ind[1].push_back(i);
		else if(str[i] == 'Y')ind[2].push_back(i);
		else assert(false);
	}
	int dp[ind[0].size()+2][ind[1].size()+2][ind[2].size()+2][3];
	for(int i = 0;i<=ind[0].size();i++){
		for(int j = 0;j<=ind[1].size();j++){
			for(int k = 0;k<=ind[2].size();k++){
				dp[i][j][k][0] = dp[i][j][k][1] = dp[i][j][k][2] = inf;
			}
		}
	}
	dp[0][0][0][0] = 0;
	dp[0][0][0][1] = 0;
	dp[0][0][0][2] = 0;
	for(int cnt0 = 0;cnt0 <= (int)ind[0].size();cnt0++){
		for(int cnt1 = 0;cnt1 <= (int)ind[1].size();cnt1++){
			for(int cnt2 = 0;cnt2 <= (int)ind[2].size();cnt2++){
				if(cnt0 != (int)ind[0].size()){
					ckmin(dp[cnt0+1][cnt1][cnt2][0] , dp[cnt0][cnt1][cnt2][1] + eval(ind[0][cnt0] , cnt0+cnt1+cnt2));
					ckmin(dp[cnt0+1][cnt1][cnt2][0] , dp[cnt0][cnt1][cnt2][2] + eval(ind[0][cnt0] , cnt0+cnt1+cnt2));
				}
				if(cnt1 != (int)ind[1].size()){
					ckmin(dp[cnt0][cnt1+1][cnt2][1] , dp[cnt0][cnt1][cnt2][0] + eval(ind[1][cnt1] , cnt0+cnt1+cnt2));
					ckmin(dp[cnt0][cnt1+1][cnt2][1] , dp[cnt0][cnt1][cnt2][2] + eval(ind[1][cnt1] , cnt0+cnt1+cnt2));
				}
				if(cnt2 != (int)ind[2].size()){
					ckmin(dp[cnt0][cnt1][cnt2+1][2] , dp[cnt0][cnt1][cnt2][0] + eval(ind[2][cnt2] , cnt0+cnt1+cnt2));
					ckmin(dp[cnt0][cnt1][cnt2+1][2] , dp[cnt0][cnt1][cnt2][1] + eval(ind[2][cnt2] , cnt0+cnt1+cnt2));
				}
			}
		}
	}
	int ans = inf;
	for(int i = 0;i<3;i++){
		ans = min(ans , dp[ind[0].size()][ind[1].size()][ind[2].size()][i]);
	}
	cout << (ans == inf ? -1 : ans) << endl;
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
}

Compilation message

joi2019_ho_t3.cpp: In function 'void solve()':
joi2019_ho_t3.cpp:24:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |  for(int i = 0;i<=ind[0].size();i++){
      |                ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:25:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |   for(int j = 0;j<=ind[1].size();j++){
      |                 ~^~~~~~~~~~~~~~~
joi2019_ho_t3.cpp:26:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |    for(int k = 0;k<=ind[2].size();k++){
      |                  ~^~~~~~~~~~~~~~~

Subtask #1

0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Incorrect	0 ms	348 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #2

0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Incorrect	0 ms	348 KB	Output isn't correct
12	Halted	0 ms	0 KB	-

Subtask #3

15.0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	2140 KB	Output is correct
3	Correct	1 ms	2140 KB	Output is correct
4	Correct	1 ms	2140 KB	Output is correct
5	Correct	1 ms	2140 KB	Output is correct
6	Correct	1 ms	2140 KB	Output is correct
7	Correct	1 ms	2140 KB	Output is correct
8	Correct	1 ms	2140 KB	Output is correct
9	Correct	1 ms	2140 KB	Output is correct
10	Correct	1 ms	2140 KB	Output is correct
11	Correct	1 ms	2140 KB	Output is correct
12	Correct	1 ms	860 KB	Output is correct
13	Correct	1 ms	1116 KB	Output is correct
14	Correct	1 ms	1628 KB	Output is correct
15	Correct	1 ms	2140 KB	Output is correct
16	Correct	1 ms	2136 KB	Output is correct

Subtask #4

0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	344 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Incorrect	0 ms	348 KB	Output isn't correct
12	Halted	0 ms	0 KB	-