Submission #1775019

---

Source Code Expand

#include <stdio.h>

int length_2(int x1, int y1, int x2, int y2) {

  return (x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1);
}

double heihoukon(int a) {

  double x;

  while (1) {
    if (a - x * x < 0.001)
     break;
    x = x + 0.001;
  }

  return x;
}


int main(void) {

  int n, i, x[100] = {0}, y[100] = {0}, j;
  int max_l2 = 0;
  double result;

  scanf("%d", &n);

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

  for (i = 0; i < n; i++) {
    for (j = 0; j < n; j++) {
     if (max_l2 < length_2(x[i], y[i], x[j], y[j]))
       max_l2 = length_2(x[i], y[i], x[j], y[j]);
    }
  }

  result = heihoukon(max_l2);

  printf("%f\n", result);

  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:28:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ^
./Main.c:31:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &x[i], &y[i]);
     ^

Judge Result