답안 #941885

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
941885	2024-03-09T15:59:26 Z	Litusiano	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	55 ms	22736 KB

ho_t2

#include<bits/stdc++.h>
using namespace std;
#define int long long

signed main(){
	int n; cin>>n;
	int k; cin>>k;
	string s; cin>>s;
	vector<vector<int>> pre(n+1, vector<int>(3,0));
	vector<vector<int>> dp(n+1, vector<int> (3,-1));
	vector<char> c = {'J','O','I'};
	for(int i = 0; i<n; i++){
		for(int j = 0; j<3; j++){
			pre[i+1][j] = pre[i][j] + (s[i] == c[j]);
		}
	}
	for(int i = 0; i<n; i++){
		for(int j = 0; j < 3; j++){
			int l = i; int r = n+1;
			while(r > l+1){
				int m = (l+r)/2;
				if(pre[m][j] - pre[i][j] >= k) r = m;
				else l = m;
			}	
			// cerr<<i<<" "<<j<<" "<<r<<" "<<r-i<<endl;
			if(r == n+1) dp[i][j] = -1;
			else dp[i][j] = r-i;
		}
	}
	int ans = LLONG_MAX;
	for(int i = 0; i<n; i++){
			bool ok = 1;
			if(s[i] != 'J') continue;
			int cur = i;
			for(int j = 0; j<3; j++){
				if(dp[cur][j] == -1){
					ok =0; break;
				}
				cur+=dp[cur][j];
			}
			if(ok)ans = min(ans,cur-i - 3*k);
	}
	if(ans == LLONG_MAX) ans = -1;
	cout<<ans<<endl;

}

Subtask #1
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct

Subtask #2
12.0 / 12.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	604 KB	Output is correct
16	Correct	1 ms	696 KB	Output is correct
17	Correct	1 ms	600 KB	Output is correct
18	Correct	1 ms	440 KB	Output is correct
19	Correct	1 ms	604 KB	Output is correct
20	Correct	1 ms	604 KB	Output is correct
21	Correct	1 ms	604 KB	Output is correct
22	Correct	1 ms	600 KB	Output is correct
23	Correct	1 ms	604 KB	Output is correct
24	Correct	1 ms	600 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	604 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	604 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	604 KB	Output is correct
33	Correct	1 ms	604 KB	Output is correct
34	Correct	1 ms	604 KB	Output is correct
35	Correct	1 ms	604 KB	Output is correct

Subtask #3
87.0 / 87.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	0 ms	344 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	436 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	344 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	604 KB	Output is correct
16	Correct	1 ms	696 KB	Output is correct
17	Correct	1 ms	600 KB	Output is correct
18	Correct	1 ms	440 KB	Output is correct
19	Correct	1 ms	604 KB	Output is correct
20	Correct	1 ms	604 KB	Output is correct
21	Correct	1 ms	604 KB	Output is correct
22	Correct	1 ms	600 KB	Output is correct
23	Correct	1 ms	604 KB	Output is correct
24	Correct	1 ms	600 KB	Output is correct
25	Correct	1 ms	604 KB	Output is correct
26	Correct	1 ms	604 KB	Output is correct
27	Correct	1 ms	604 KB	Output is correct
28	Correct	1 ms	604 KB	Output is correct
29	Correct	1 ms	604 KB	Output is correct
30	Correct	1 ms	604 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	604 KB	Output is correct
33	Correct	1 ms	604 KB	Output is correct
34	Correct	1 ms	604 KB	Output is correct
35	Correct	1 ms	604 KB	Output is correct
36	Correct	34 ms	20972 KB	Output is correct
37	Correct	36 ms	22508 KB	Output is correct
38	Correct	38 ms	22508 KB	Output is correct
39	Correct	54 ms	22508 KB	Output is correct
40	Correct	55 ms	22496 KB	Output is correct
41	Correct	54 ms	22508 KB	Output is correct
42	Correct	54 ms	22500 KB	Output is correct
43	Correct	31 ms	14320 KB	Output is correct
44	Correct	39 ms	17724 KB	Output is correct
45	Correct	50 ms	22736 KB	Output is correct
46	Correct	50 ms	22508 KB	Output is correct
47	Correct	51 ms	22736 KB	Output is correct
48	Correct	51 ms	22508 KB	Output is correct
49	Correct	37 ms	15084 KB	Output is correct
50	Correct	51 ms	22728 KB	Output is correct
51	Correct	50 ms	22728 KB	Output is correct
52	Correct	45 ms	21728 KB	Output is correct
53	Correct	43 ms	22508 KB	Output is correct
54	Correct	43 ms	22724 KB	Output is correct
55	Correct	43 ms	22496 KB	Output is correct
56	Correct	42 ms	22504 KB	Output is correct

답안 #941885

Compilation message

Subtask #1 1.0 / 1.0

Subtask #2 12.0 / 12.0

Subtask #3 87.0 / 87.0

Subtask #1
1.0 / 1.0

Subtask #2
12.0 / 12.0

Subtask #3
87.0 / 87.0