oj.uz

Submission #935046

# Submission time Handle Problem Language Result Execution time Memory
935046 2024-02-28T13:06:33 Z kim Chorus (JOI23_chorus) C++17
40 / 100
 7000 ms 144360 KB 
#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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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

# Verdict Execution time Memory 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 -