Submission #448532

#	Time	Username	Problem	Language	Result	Execution time	Memory
448532		rainboy	Kas (COCI17_kas)	C11	100 / 100	181 ms	1860 KiB

kas

#include <stdio.h>
#include <string.h>

#define S	100000

int max(int a, int b) { return a > b ? a : b; }

int main() {
	static int dp[S * 2 + 1], dq[S * 2 + 1];
	int n, sum;

	scanf("%d", &n);
	memset(dp, -1, (S * 2 + 1) * sizeof *dp), dp[S] = 0;
	sum = 0;
	while (n--) {
		int c, s;

		scanf("%d", &c);
		sum += c;
		memcpy(dq, dp, (S * 2 + 1) * sizeof *dp);
		for (s = 0; s <= S * 2; s++)
			if (dp[s] != -1)
				dq[s - c] = max(dq[s - c], dp[s] + c), dq[s + c] = max(dq[s + c], dp[s] + c);
		memcpy(dp, dq, (S * 2 + 1) * sizeof *dq);
	}
	printf("%d\n", sum - dp[S] / 2);
	return 0;
}

Compilation message (stderr)

kas.c: In function 'main':
kas.c:12:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
kas.c:18:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |   scanf("%d", &c);
      |   ^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10