Submission #950497

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
950497	2024-03-20T11:12:27 Z	andrei_boaca	Chorus (JOI23_chorus)	C++17	40 / 100	7000 ms	57904 KB

chorus

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
const ll INF=1e17;
ll n,k,lga,lgb,makegood;
ll A[1000005],B[1000005];
ll dp[5005][5005];
string str;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>k;
    cin>>str;
    for(int i=0;i<str.size();i++)
    {
        if(str[i]=='A')
            A[++lga]=i+1;
        else
            B[++lgb]=i+1;
    }
    for(int i=1;i<=n;i++)
        if(A[i]>B[i])
        {
            ll x=A[i];
            A[i]=B[i];
            for(int j=i;j<=n;j++)
            {
                if(B[j]<x)
                {
                    B[j]++;
                    makegood++;
                }
                else
                    break;
            }
        }
    for(int i=n;i>=1;i--)
    {
        dp[i][0]=INF;
        for(int cnt=1;cnt<=k;cnt++)
        {
            ll suma=0;
            ll cost=0;
            int ind=i;
            dp[i][cnt]=INF;
            for(int j=i;j<=n;j++)
            {
                while(ind<=n&&B[ind]<A[j])
                {
                    suma++;
                    ind++;
                }
                cost+=suma;
                dp[i][cnt]=min(dp[i][cnt],cost+dp[j+1][cnt-1]);
            }
        }
    }
    cout<<dp[1][k]+makegood;
    return 0;
}

Compilation message

chorus.cpp: In function 'int main()':
chorus.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i=0;i<str.size();i++)
      |                 ~^~~~~~~~~~~

Subtask #1
16.0 / 16.0

#	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	1 ms	6492 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6616 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6488 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct

Subtask #2
24.0 / 24.0

#	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	1 ms	6492 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6616 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6488 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	4 ms	12636 KB	Output is correct
18	Correct	31 ms	25072 KB	Output is correct
19	Correct	83 ms	25052 KB	Output is correct
20	Correct	4 ms	24920 KB	Output is correct
21	Correct	4 ms	24924 KB	Output is correct
22	Correct	148 ms	25048 KB	Output is correct
23	Correct	108 ms	24916 KB	Output is correct
24	Correct	6 ms	24924 KB	Output is correct
25	Correct	129 ms	25060 KB	Output is correct
26	Correct	89 ms	24912 KB	Output is correct
27	Correct	48 ms	25320 KB	Output is correct
28	Correct	41 ms	25072 KB	Output is correct

Subtask #3
0 / 21.0

#	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	1 ms	6492 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6616 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6488 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	4 ms	12636 KB	Output is correct
18	Correct	31 ms	25072 KB	Output is correct
19	Correct	83 ms	25052 KB	Output is correct
20	Correct	4 ms	24920 KB	Output is correct
21	Correct	4 ms	24924 KB	Output is correct
22	Correct	148 ms	25048 KB	Output is correct
23	Correct	108 ms	24916 KB	Output is correct
24	Correct	6 ms	24924 KB	Output is correct
25	Correct	129 ms	25060 KB	Output is correct
26	Correct	89 ms	24912 KB	Output is correct
27	Correct	48 ms	25320 KB	Output is correct
28	Correct	41 ms	25072 KB	Output is correct
29	Execution timed out	7093 ms	57904 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #4
0 / 26.0

#	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	1 ms	6492 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6616 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6488 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	4 ms	12636 KB	Output is correct
18	Correct	31 ms	25072 KB	Output is correct
19	Correct	83 ms	25052 KB	Output is correct
20	Correct	4 ms	24920 KB	Output is correct
21	Correct	4 ms	24924 KB	Output is correct
22	Correct	148 ms	25048 KB	Output is correct
23	Correct	108 ms	24916 KB	Output is correct
24	Correct	6 ms	24924 KB	Output is correct
25	Correct	129 ms	25060 KB	Output is correct
26	Correct	89 ms	24912 KB	Output is correct
27	Correct	48 ms	25320 KB	Output is correct
28	Correct	41 ms	25072 KB	Output is correct
29	Execution timed out	7093 ms	57904 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Subtask #5
0 / 13.0

#	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	1 ms	6492 KB	Output is correct
5	Correct	1 ms	4444 KB	Output is correct
6	Correct	1 ms	6492 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6616 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6488 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	4 ms	12636 KB	Output is correct
18	Correct	31 ms	25072 KB	Output is correct
19	Correct	83 ms	25052 KB	Output is correct
20	Correct	4 ms	24920 KB	Output is correct
21	Correct	4 ms	24924 KB	Output is correct
22	Correct	148 ms	25048 KB	Output is correct
23	Correct	108 ms	24916 KB	Output is correct
24	Correct	6 ms	24924 KB	Output is correct
25	Correct	129 ms	25060 KB	Output is correct
26	Correct	89 ms	24912 KB	Output is correct
27	Correct	48 ms	25320 KB	Output is correct
28	Correct	41 ms	25072 KB	Output is correct
29	Execution timed out	7093 ms	57904 KB	Time limit exceeded
30	Halted	0 ms	0 KB	-

Submission #950497

Compilation message

Subtask #1 16.0 / 16.0

Subtask #2 24.0 / 24.0

Subtask #3 0 / 21.0

Subtask #4 0 / 26.0

Subtask #5 0 / 13.0

Subtask #1
16.0 / 16.0

Subtask #2
24.0 / 24.0

Subtask #3
0 / 21.0

Subtask #4
0 / 26.0

Subtask #5
0 / 13.0