fork download
copy 
  1. #include <stdio.h>
  2. #include <math.h>  
  3.  
  4. typedef struct {
  5.     double x;
  6.     double y;
  7. } Point;
  8.  
  9. Point scan_point();
  10. double area_of(Point p1, Point p2);
  11. double circumference_of(Point p1, Point p2);
  12.  
  13. int main() {
  14.     Point p1, p2;
  15.     double area, circum;
  16.  
  17.     printf("左上隅と右下隅の座標を入力してください。\n");
  18.     printf("左上隅：");
  19.     p1 = scan_point();
  20. 	printf("(%.2lf,",p1.x);
  21. 	printf("%.2lf)",p1.y);
  22.  	printf("右下隅：");
  23.     p2 = scan_point();
  24. 	printf("(%.2lf,",p2.x);
  25. 	printf("%.2lf)",p2.y);
  26.     area = area_of(p1, p2);
  27.     circum = circumference_of(p1, p2);
  28.  
  29.     printf("面積 = %.2f\n", area);
  30.     printf("周囲の長さ = %.2f\n", circum);
  31.  
  32.     return 0;
  33. }
  34.  
  35. Point scan_point() {
  36.     Point p;
  37.     scanf("%lf %lf", &p.x, &p.y);
  38.     return p;
  39. }
  40.  
  41. double area_of(Point p1, Point p2) {
  42.     double a= fabs(p2.x - p1.x);
  43.     double b= fabs(p2.y - p1.y);
  44.     return a* b;
  45. }
  46.  
  47. double circumference_of(Point p1, Point p2) {
  48.     double a= fabs(p2.x - p1.x);
  49.     double b= fabs(p2.y - p1.y);
  50.     return 2 * (a+ b);
  51. }
Success #stdin #stdout 0.01s 5312KB
comments (?)
stdin
copy 
0 0 1 1
stdout
copy 
左上隅と右下隅の座標を入力してください。
左上隅：(0.00,0.00)右下隅：(1.00,1.00)面積 = 1.00
周囲の長さ = 4.00
https://ideone.com/x3h4bM
language:
C (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!