fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int N, i;
  5.     double x, sum;
  6.  
  7.     printf("Сума ряду x^2 / (2i)\n");
  8.     printf("Введіть N: ");
  9.     scanf("%d", &N);
  10.     printf("Введіть x: ");
  11.     scanf("%lf", &x);
  12.  
  13.     // Цикл for
  14.     sum = 0;
  15.     for (i = 1; i <= N; i++) {
  16.         sum += (x * x) / (2 * i);
  17.     }
  18.     printf("Сума (for): %.6lf\n", sum);
  19.  
  20.     // Цикл while
  21.     sum = 0;
  22.     i = 1;
  23.     while (i <= N) {
  24.         sum += (x * x) / (2 * i);
  25.         i++;
  26.     }
  27.     printf("Сума (while): %.6lf\n", sum);
  28.  
  29.     // Цикл do-while
  30.     sum = 0;
  31.     i = 1;
  32.     do {
  33.         sum += (x * x) / (2 * i);
  34.         i++;
  35.     } while (i <= N);
  36.     printf("Сума (do-while): %.6lf\n", sum);
  37.  
  38.     return 0;
  39. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
21
7
stdout
copy 
Сума ряду x^2 / (2i)
Введіть N: Введіть x: Сума (for): 89.311288
Сума (while): 89.311288
Сума (do-while): 89.311288
https://ideone.com/72VM2j
language:
C (gcc 8.3)
created:
5 days 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!