fork(1) download
copy 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <math.h>   
  4.  
  5. typedef struct {
  6.     double x;
  7.     double y;
  8. } Point;
  9.  
  10. Point scan_point(void);
  11. double area_of(Point p1, Point p2);
  12. double circumference_of(Point p1, Point p2);
  13.  
  14. int main(void) {
  15.     Point p1 = scan_point();
  16.     Point p2 = scan_point();
  17.     double area = area_of(p1, p2);
  18.     double circ = circumference_of(p1, p2);
  19.     printf("座標1 (%.2f, %.2f)\n", p1.x, p1.y);
  20.     printf("座標2 (%.2f, %.2f)\n", p2.x, p2.y);
  21.     printf("面積: %.2f\n", area);
  22.     printf("周囲の長さ: %.2f\n", circ);
  23.  
  24.     return 0;
  25. }
  26.  
  27. Point scan_point(void) {
  28.     Point p;
  29.     if (scanf("%lf %lf", &p.x, &p.y) != 2) {
  30.         p.x = p.y = 0.0;
  31.     }
  32.     return p;
  33. }
  34.  
  35. double area_of(Point p1, Point p2) {
  36.     double width  = fabs(p2.x - p1.x);
  37.     double height = fabs(p2.y - p1.y);
  38.     return width * height;
  39. }
  40.  
  41. double circumference_of(Point p1, Point p2) {
  42.     double width  = fabs(p2.x - p1.x);
  43.     double height = fabs(p2.y - p1.y);
  44.     return 2.0 * (width + height);
  45. }
  46.  
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
copy 
1 1
stdout
copy 
座標1 (1.00, 1.00)
座標2 (0.00, 0.00)
面積: 1.00
周囲の長さ: 4.00
https://ideone.com/V9EqOd
language:
C99 (gcc 8.3)
created:
1 day ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!