#include<iostream>
#include<vector>
using namespace std;
#define forn(i, n) for(int i=0; i<(int)n; ++i)
#define dforn(i, n) for(int i=0; i<(int)n; ++i)
#define forsn(i, s, n) for(int i=s; i<(int)n; ++i)
#define PB push_back
const int MAXN=5010, INF=1e7;
int n, K, pos[MAXN], cost[MAXN][MAXN], dp[MAXN][MAXN];
char str[MAXN];
vector<bool> imp;
int main(){
scanf("%d %d", &n, &K);
scanf("%s", str);
forn(i, n){
int cnA=0, cnB=0, cn=0;
forn(j, 2*n){
if(str[j]=='A'){
cnA++;
if(cnA>i) imp.PB(0);
}
else{
cnB++;
if(cnB>i) imp.PB(1);
}
}
forn(j, 2*(n-i)) if(!imp[j]) pos[cn++]=j;
forsn(j, 1, cn+1) cost[i][j]=cost[i][j-1]+pos[j-1]-j+1;
imp.clear();
}
forn(i, n) dp[0][i]=INF;
forsn(i, 1, K+1) dp[i][n]=INF;
forsn(i, 1, K+1) dforn(j, n){
dp[i][j]=INF;
forsn(k, 1, n-j+1) dp[i][j]=min(dp[i][j], dp[i-1][j+k] + cost[j][k]);
}
printf("%d\n", dp[K][0]);
}
Compilation message
chorus.cpp: In function 'int main()':
chorus.cpp:15:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
15 | scanf("%d %d", &n, &K);
| ~~~~~^~~~~~~~~~~~~~~~~
chorus.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
16 | scanf("%s", str);
| ~~~~~^~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 18 |
Correct |
22 ms |
3332 KB |
Output is correct |
| 19 |
Correct |
51 ms |
4428 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
76 ms |
5804 KB |
Output is correct |
| 23 |
Correct |
76 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
74 ms |
5740 KB |
Output is correct |
| 26 |
Correct |
69 ms |
5236 KB |
Output is correct |
| 27 |
Correct |
27 ms |
3764 KB |
Output is correct |
| 28 |
Correct |
27 ms |
3700 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 18 |
Correct |
22 ms |
3332 KB |
Output is correct |
| 19 |
Correct |
51 ms |
4428 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
76 ms |
5804 KB |
Output is correct |
| 23 |
Correct |
76 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
74 ms |
5740 KB |
Output is correct |
| 26 |
Correct |
69 ms |
5236 KB |
Output is correct |
| 27 |
Correct |
27 ms |
3764 KB |
Output is correct |
| 28 |
Correct |
27 ms |
3700 KB |
Output is correct |
| 29 |
Execution timed out |
7048 ms |
81396 KB |
Time limit exceeded |
| 30 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 18 |
Correct |
22 ms |
3332 KB |
Output is correct |
| 19 |
Correct |
51 ms |
4428 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
76 ms |
5804 KB |
Output is correct |
| 23 |
Correct |
76 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
74 ms |
5740 KB |
Output is correct |
| 26 |
Correct |
69 ms |
5236 KB |
Output is correct |
| 27 |
Correct |
27 ms |
3764 KB |
Output is correct |
| 28 |
Correct |
27 ms |
3700 KB |
Output is correct |
| 29 |
Execution timed out |
7048 ms |
81396 KB |
Time limit exceeded |
| 30 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
0 ms |
340 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
340 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
340 KB |
Output is correct |
| 8 |
Correct |
0 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
340 KB |
Output is correct |
| 11 |
Correct |
0 ms |
340 KB |
Output is correct |
| 12 |
Correct |
0 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
0 ms |
340 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
2 ms |
1364 KB |
Output is correct |
| 18 |
Correct |
22 ms |
3332 KB |
Output is correct |
| 19 |
Correct |
51 ms |
4428 KB |
Output is correct |
| 20 |
Correct |
3 ms |
2772 KB |
Output is correct |
| 21 |
Correct |
4 ms |
2772 KB |
Output is correct |
| 22 |
Correct |
76 ms |
5804 KB |
Output is correct |
| 23 |
Correct |
76 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
2772 KB |
Output is correct |
| 25 |
Correct |
74 ms |
5740 KB |
Output is correct |
| 26 |
Correct |
69 ms |
5236 KB |
Output is correct |
| 27 |
Correct |
27 ms |
3764 KB |
Output is correct |
| 28 |
Correct |
27 ms |
3700 KB |
Output is correct |
| 29 |
Execution timed out |
7048 ms |
81396 KB |
Time limit exceeded |
| 30 |
Halted |
0 ms |
0 KB |
- |
