Submission #488523

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
488523	2021-11-19T12:57:01 Z	rainboy	Kamenčići (COCI21_kamencici)	C	70 / 70	50 ms	85924 KB

Main

#include <stdio.h>

#define N	350

int main() {
	static char cc[N + 1];
	static int pp[N], dp[N][N + 1][N];
	int n, k_, i, j, k;

	scanf("%d%d%s", &n, &k_, cc);
	for (i = 0; i < n; i++)
		pp[i] = cc[i] == 'C' ? 1 : 0;
	for (i = 1; i < n; i++)
		pp[i] += pp[i - 1];
	for (i = n - 1; i >= 0; i--)
		for (j = i; j <= n; j++) {
			int c = (i == 0 ? 0 : pp[i - 1]) + pp[n - 1] - (j == 0 ? 0 : pp[j - 1]);

			for (k = 0; k < k_; k++)
				dp[i][j][k] = c - k >= k_ ? 1 : !(dp[i + 1][j][c - k] && dp[i][j - 1][c - k]);
		}
	printf(dp[0][n][0] ? "DA\n" : "NE\n");
	return 0;
}

Compilation message

Main.c: In function 'main':
Main.c:10:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d%d%s", &n, &k_, cc);
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	588 KB	Output is correct
2	Correct	0 ms	588 KB	Output is correct
3	Correct	0 ms	588 KB	Output is correct
4	Correct	0 ms	588 KB	Output is correct
5	Correct	1 ms	588 KB	Output is correct
6	Correct	0 ms	588 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	588 KB	Output is correct
2	Correct	0 ms	588 KB	Output is correct
3	Correct	0 ms	588 KB	Output is correct
4	Correct	0 ms	588 KB	Output is correct
5	Correct	1 ms	588 KB	Output is correct
6	Correct	0 ms	588 KB	Output is correct
7	Correct	1 ms	2252 KB	Output is correct
8	Correct	1 ms	1868 KB	Output is correct
9	Correct	1 ms	2200 KB	Output is correct
10	Correct	1 ms	1868 KB	Output is correct
11	Correct	1 ms	1868 KB	Output is correct
12	Correct	2 ms	2052 KB	Output is correct

Subtask #3

40.0 / 40.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	588 KB	Output is correct
2	Correct	0 ms	588 KB	Output is correct
3	Correct	0 ms	588 KB	Output is correct
4	Correct	0 ms	588 KB	Output is correct
5	Correct	1 ms	588 KB	Output is correct
6	Correct	0 ms	588 KB	Output is correct
7	Correct	1 ms	2252 KB	Output is correct
8	Correct	1 ms	1868 KB	Output is correct
9	Correct	1 ms	2200 KB	Output is correct
10	Correct	1 ms	1868 KB	Output is correct
11	Correct	1 ms	1868 KB	Output is correct
12	Correct	2 ms	2052 KB	Output is correct
13	Correct	39 ms	85924 KB	Output is correct
14	Correct	47 ms	85452 KB	Output is correct
15	Correct	33 ms	77548 KB	Output is correct
16	Correct	42 ms	84628 KB	Output is correct
17	Correct	50 ms	85156 KB	Output is correct
18	Correct	39 ms	84628 KB	Output is correct