#include<bits/stdc++.h>
#define fi first
#define se second
#define pitem item*
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=400+10;
const int SS=1<<19;
const int INFi=2e9;
const ll INFl=1e13;
const ll mod2=998244353;
const ll mod=1e9+7;
const ll mod3=1000696969;
const ll p=70032301;
const ull p2=913;
const int L=20;
bool dp[N][N][N];
void solve(){
int n,k;
string s;
cin>>n>>k>>s;
s="#"+s;
int il=0;
for(int i=1;i<=n;i++) il+=(s[i]=='C');
for(int i=n;i>=1;i--){
int curr=0;
for(int j=i;j<=n;j++){
curr+=(s[j]=='C');
for(int __curr=0;__curr<min(j-i+1,k);__curr++){
int on=il-curr-__curr;
if(on>=k){
dp[i][j][__curr]=1;
continue;
}
if(__curr+(s[i]=='C')<k and !dp[i+1][j][on]) dp[i][j][__curr]=1;
if(__curr+(s[j]=='C')<k and !dp[i][j-1][on]) dp[i][j][__curr]=1;
}
}
}
cout<<(dp[1][n][0]?"DA":"NE")<<"\n";
}
int main(){
ios_base::sync_with_stdio(0),cin.tie(0);
int tt=1;
while(tt--) solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
0 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
0 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
992 KB |
Output is correct |
8 |
Correct |
1 ms |
852 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
1 ms |
852 KB |
Output is correct |
11 |
Correct |
1 ms |
844 KB |
Output is correct |
12 |
Correct |
1 ms |
852 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
468 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
0 ms |
468 KB |
Output is correct |
7 |
Correct |
1 ms |
992 KB |
Output is correct |
8 |
Correct |
1 ms |
852 KB |
Output is correct |
9 |
Correct |
1 ms |
980 KB |
Output is correct |
10 |
Correct |
1 ms |
852 KB |
Output is correct |
11 |
Correct |
1 ms |
844 KB |
Output is correct |
12 |
Correct |
1 ms |
852 KB |
Output is correct |
13 |
Correct |
12 ms |
26196 KB |
Output is correct |
14 |
Correct |
16 ms |
26128 KB |
Output is correct |
15 |
Correct |
11 ms |
23764 KB |
Output is correct |
16 |
Correct |
19 ms |
25764 KB |
Output is correct |
17 |
Incorrect |
22 ms |
25992 KB |
Output isn't correct |
18 |
Halted |
0 ms |
0 KB |
- |