Submission #2203605

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Source Code Expand

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

#define MAX_NUM_POINTS 100

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

void set_point(Point* p, int x, int y)
{
  p->x = x;
  p->y = y;
}

int square_dist(Point* a, Point* b)
{
  int square_x = (a->x - b->x) * (a->x - b->x);
  int square_y = (a->y - b->y) * (a->y - b->y);
  return square_x + square_y;
}

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

double find_largest_dist(Point* array, size_t size)
{
  int largest_square_dist = 0;
  for(size_t i = 0; i < size; i++) {
    for(size_t k = 0; k < size; k++) {
      if(i == k) {
        continue;
      }
      int dist = square_dist(&array[i], &array[k]);
      largest_square_dist = max(dist, largest_square_dist);
    }
  }
  return sqrt(largest_square_dist);
}

int main()
{
  int n;
  scanf("%d", &n);

  Point point[MAX_NUM_POINTS];
  for(int i = 0; i < n; i++) {
    scanf("%d%d", &point[i].x, &point[i].y);
  }
  printf("%f\n", find_largest_dist(point, n));
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:48:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ^
./Main.c:52:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &point[i].x, &point[i].y);
     ^

Judge Result