Submission #432518

#	Time	Username	Problem	Language	Result	Execution time	Memory
432518		rainboy	Poi (IOI09_poi)	C11	100 / 100	493 ms	15928 KiB

poi

#include <stdio.h>

#define N	2000
#define T	2000

int main() {
	static int aa[N][T], kk[T], ss[N], tt[N];
	int n, t, p, i, j, rank;

	scanf("%d%d%d", &n, &t, &p), p--;
	for (i = 0; i < n; i++)
		for (j = 0; j < t; j++) {
			scanf("%d", &aa[i][j]);
			if (aa[i][j])
				kk[j]++;
		}
	for (i = 0; i < n; i++)
		for (j = 0; j < t; j++)
			if (aa[i][j])
				ss[i] += n - kk[j], tt[i]++;
	rank = 0;
	for (i = 0; i < n; i++)
		if (ss[i] > ss[p] || ss[i] == ss[p] && (tt[i] > tt[p] || tt[i] == tt[p] && i <= p))
			rank++;
	printf("%d %d\n", ss[p], rank);
	return 0;
}

Compilation message (stderr)

poi.c: In function 'main':
poi.c:23:75: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   23 |   if (ss[i] > ss[p] || ss[i] == ss[p] && (tt[i] > tt[p] || tt[i] == tt[p] && i <= p))
      |                                                            ~~~~~~~~~~~~~~~^~~~~~~~~
poi.c:23:39: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   23 |   if (ss[i] > ss[p] || ss[i] == ss[p] && (tt[i] > tt[p] || tt[i] == tt[p] && i <= p))
      |                        ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
poi.c:10:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |  scanf("%d%d%d", &n, &t, &p), p--;
      |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
poi.c:13:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |    scanf("%d", &aa[i][j]);
      |    ^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 100 / 100