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Submission #862260

# Submission time Handle Problem Language Result Execution time Memory
862260 2023-10-17T21:18:38 Z AbdelmagedNour Kamenčići (COCI21_kamencici) C++17
70 / 70
 42 ms 175696 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
using namespace std;
typedef long long ll;
const int N=355;
int n,k,dp[N][N][N],pre[N];

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	memset(dp, -1, sizeof dp);
	cin>>n>>k;
	string str;
	cin>>str;
	str=str;
	for(int i=1;i<=n;i++)pre[i]=pre[i-1]+(str[i-1]=='C');
	for(int l=n;l>=1;l--){
		for(int r=l;r<=n;r++){
			for(int cnt=0;cnt<=n;cnt++){
				if(cnt>=k){
					dp[l][r][cnt]=0;
					continue;
				}
				int cnt2=pre[n]-cnt-(pre[r]-pre[l-1]);
				if(cnt2>=k)dp[l][r][cnt]=1;
				else dp[l][r][cnt]=(!dp[l+1][r][cnt2])||(!dp[l][r-1][cnt2]);
			}
		}
	}
	cout<<(dp[1][n][0]?"DA\n":"NE\n");
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 175308 KB Output is correct
2 Correct 27 ms 175536 KB Output is correct
3 Correct 28 ms 175488 KB Output is correct
4 Correct 27 ms 175388 KB Output is correct
5 Correct 29 ms 175696 KB Output is correct
6 Correct 30 ms 175296 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 175308 KB Output is correct
2 Correct 27 ms 175536 KB Output is correct
3 Correct 28 ms 175488 KB Output is correct
4 Correct 27 ms 175388 KB Output is correct
5 Correct 29 ms 175696 KB Output is correct
6 Correct 30 ms 175296 KB Output is correct
7 Correct 30 ms 175444 KB Output is correct
8 Correct 27 ms 175352 KB Output is correct
9 Correct 27 ms 175444 KB Output is correct
10 Correct 27 ms 175440 KB Output is correct
11 Correct 31 ms 175440 KB Output is correct
12 Correct 30 ms 175452 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 27 ms 175308 KB Output is correct
2 Correct 27 ms 175536 KB Output is correct
3 Correct 28 ms 175488 KB Output is correct
4 Correct 27 ms 175388 KB Output is correct
5 Correct 29 ms 175696 KB Output is correct
6 Correct 30 ms 175296 KB Output is correct
7 Correct 30 ms 175444 KB Output is correct
8 Correct 27 ms 175352 KB Output is correct
9 Correct 27 ms 175444 KB Output is correct
10 Correct 27 ms 175440 KB Output is correct
11 Correct 31 ms 175440 KB Output is correct
12 Correct 30 ms 175452 KB Output is correct
13 Correct 38 ms 175504 KB Output is correct
14 Correct 40 ms 175444 KB Output is correct
15 Correct 36 ms 175448 KB Output is correct
16 Correct 39 ms 175440 KB Output is correct
17 Correct 42 ms 175452 KB Output is correct
18 Correct 38 ms 175452 KB Output is correct