Submission #488523

#	Time	Username	Problem	Language	Result	Execution time	Memory
488523		rainboy	Kamenčići (COCI21_kamencici)	C11	70 / 70	50 ms	85924 KiB

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 (stderr)

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 / 10
• Subtask 2: 20 / 20
• Subtask 3: 40 / 40