Submission #1573217

---

Source Code Expand

#include<stdio.h>
#include<math.h>
#include<stdlib.h>

typedef struct
{
	int x;
	int y;
}Point;

int main()
{
	int n, i, j;
	Point *p;
	double max = 0;

	scanf("%d", &n);

	p = (Point *)calloc(n, sizeof(Point));

	for(i = 0; i < n; i++)
		scanf("%d%d", &p[i].x, &p[i].y);

	for(i = 0; i < n - 1; i++)
		for(j = i + 1; j < n; j++)
			max = (max < sqrt(pow(p[i].x - p[j].x, 2) + pow(p[i].y - p[j].y, 2))) ? sqrt(pow(p[i].x - p[j].x, 2) + pow(p[i].y - p[j].y, 2)): max;

	printf("%.6f\n", max);
	
	free(p);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:17:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:22:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &p[i].x, &p[i].y);
                                  ^

Judge Result