Submission #587241

#	Time	Username	Problem	Language	Result	Execution time	Memory
587241		rainboy	Med (COCI22_med)	C11	50 / 50	1 ms	300 KiB

Main

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

#define N	500
#define L	10
#define S	500

unsigned int X = 12345;

int rand_() {
	return (X *= 3) >> 1;
}

char ss[N][L + 1]; int aa[N], ii[N];

void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;

		while (j < k) {
			int c = aa[ii[j]] != aa[i_] ? aa[i_] - aa[ii[j]] : strcmp(ss[ii[j]], ss[i_]);

			if (c == 0)
				j++;
			else if (c < 0) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		}
		sort(ii, l, i);
		l = k;
	}
}

int main() {
	static int ll[N], rr[N];
	int n, h, i, l, r;

	scanf("%d", &n);
	for (i = 0; i < n; i++) {
		scanf("%s", ss[i]);
		for (h = 0; h < 5; h++) {
			int a;

			scanf("%d", &a);
			aa[i] += a;
		}
		ii[i] = i;
	}
	sort(ii, 0, n);
	for (i = 0, l = 0, r = 0; i < n; i++) {
		while (aa[ii[l]] - aa[ii[i]] > S || aa[ii[l]] - aa[ii[i]] == S && strcmp(ss[ii[l]], ss[ii[i]]) < 0)
			l++;
		while (r < n && (aa[ii[i]] - aa[ii[r]] < S || aa[ii[i]] - aa[ii[r]] == S && strcmp(ss[ii[i]], ss[ii[r]]) > 0))
			r++;
		ll[ii[i]] = l + 1, rr[ii[i]] = r;
	}
	for (i = 0; i < n; i++)
		printf("%d %d\n", ll[i], rr[i]);
	return 0;
}

Compilation message (stderr)

Main.c: In function 'main':
Main.c:55:66: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   55 |   while (aa[ii[l]] - aa[ii[i]] > S || aa[ii[l]] - aa[ii[i]] == S && strcmp(ss[ii[l]], ss[ii[i]]) < 0)
      |                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:57:76: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   57 |   while (r < n && (aa[ii[i]] - aa[ii[r]] < S || aa[ii[i]] - aa[ii[r]] == S && strcmp(ss[ii[i]], ss[ii[r]]) > 0))
      |                                                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:42:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
Main.c:44:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   44 |   scanf("%s", ss[i]);
      |   ^~~~~~~~~~~~~~~~~~
Main.c:48:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |    scanf("%d", &a);
      |    ^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40