답안 #935046

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
935046	2024-02-28T13:06:33 Z	kim	Chorus (JOI23_chorus)	C++17	40 / 100	7000 ms	144360 KB

chorus

#include<bits/stdc++.h>
using namespace std;
using ll=long long;

const ll inf=1e18;

int a[5005],b[5005],pos[5005];
ll dp[5005][5005],cost[5005][5005];

int main(){
    ios::sync_with_stdio(false); cin.tie(0);

    int n,K; cin>>n>>K;
    string s; cin>>s;
    for(int i=0,ia=0,ib=0;i<s.length();++i){
        if(s[i]=='A') a[++ia]=i;
        else b[++ib]=i;
    }
    for(int i=1,j=1;i<=n;++i){
        while(j<=n&&b[j]<a[i]) ++j;
        pos[i]=j;
    }
    for(int i=1;i<=n;++i){
        for(int j=i;j<=n;++j){
            cost[i][j]=cost[i][j-1]+max(0,pos[j]-i);
        }
    }
    for(int i=1;i<=n;++i) dp[1][i]=cost[1][i];
    for(int k=2;k<=K;++k){
        for(int i=k;i<=n;++i){
            dp[k][i]=inf;
            for(int j=k-1;j<i;++j){
                dp[k][i]=min(dp[k][i],dp[k-1][j]+cost[j+1][i]);
            }
        }
    }
    cout<<dp[K][n];

    return 0;
}

Compilation message

chorus.cpp: In function 'int main()':
chorus.cpp:15:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for(int i=0,ia=0,ib=0;i<s.length();++i){
      |                           ~^~~~~~~~~~~

Subtask #1

16.0 / 16.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2392 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	2 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct

Subtask #2

24.0 / 24.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2392 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	2 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	3 ms	5212 KB	Output is correct
18	Correct	14 ms	11376 KB	Output is correct
19	Correct	23 ms	17280 KB	Output is correct
20	Correct	2 ms	7260 KB	Output is correct
21	Correct	2 ms	7260 KB	Output is correct
22	Correct	27 ms	27732 KB	Output is correct
23	Correct	26 ms	27740 KB	Output is correct
24	Correct	4 ms	7260 KB	Output is correct
25	Correct	30 ms	27628 KB	Output is correct
26	Correct	26 ms	23660 KB	Output is correct
27	Correct	18 ms	13392 KB	Output is correct
28	Correct	18 ms	13332 KB	Output is correct

Subtask #3

0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2392 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	2 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	3 ms	5212 KB	Output is correct
18	Correct	14 ms	11376 KB	Output is correct
19	Correct	23 ms	17280 KB	Output is correct
20	Correct	2 ms	7260 KB	Output is correct
21	Correct	2 ms	7260 KB	Output is correct
22	Correct	27 ms	27732 KB	Output is correct
23	Correct	26 ms	27740 KB	Output is correct
24	Correct	4 ms	7260 KB	Output is correct
25	Correct	30 ms	27628 KB	Output is correct
26	Correct	26 ms	23660 KB	Output is correct
27	Correct	18 ms	13392 KB	Output is correct
28	Correct	18 ms	13332 KB	Output is correct
29	Execution timed out	7019 ms	144360 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #4

0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2392 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	2 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	3 ms	5212 KB	Output is correct
18	Correct	14 ms	11376 KB	Output is correct
19	Correct	23 ms	17280 KB	Output is correct
20	Correct	2 ms	7260 KB	Output is correct
21	Correct	2 ms	7260 KB	Output is correct
22	Correct	27 ms	27732 KB	Output is correct
23	Correct	26 ms	27740 KB	Output is correct
24	Correct	4 ms	7260 KB	Output is correct
25	Correct	30 ms	27628 KB	Output is correct
26	Correct	26 ms	23660 KB	Output is correct
27	Correct	18 ms	13392 KB	Output is correct
28	Correct	18 ms	13332 KB	Output is correct
29	Execution timed out	7019 ms	144360 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5

0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	2396 KB	Output is correct
2	Correct	1 ms	2396 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	0 ms	2396 KB	Output is correct
6	Correct	0 ms	2396 KB	Output is correct
7	Correct	1 ms	2396 KB	Output is correct
8	Correct	0 ms	2396 KB	Output is correct
9	Correct	1 ms	2396 KB	Output is correct
10	Correct	1 ms	2392 KB	Output is correct
11	Correct	0 ms	2396 KB	Output is correct
12	Correct	1 ms	2396 KB	Output is correct
13	Correct	2 ms	2396 KB	Output is correct
14	Correct	0 ms	2396 KB	Output is correct
15	Correct	0 ms	2396 KB	Output is correct
16	Correct	0 ms	2396 KB	Output is correct
17	Correct	3 ms	5212 KB	Output is correct
18	Correct	14 ms	11376 KB	Output is correct
19	Correct	23 ms	17280 KB	Output is correct
20	Correct	2 ms	7260 KB	Output is correct
21	Correct	2 ms	7260 KB	Output is correct
22	Correct	27 ms	27732 KB	Output is correct
23	Correct	26 ms	27740 KB	Output is correct
24	Correct	4 ms	7260 KB	Output is correct
25	Correct	30 ms	27628 KB	Output is correct
26	Correct	26 ms	23660 KB	Output is correct
27	Correct	18 ms	13392 KB	Output is correct
28	Correct	18 ms	13332 KB	Output is correct
29	Execution timed out	7019 ms	144360 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-