fork(4) download
copy 
  1. #include <stdlib.h>
  2. #include <stdio.h>
  3. void print_ary(int argc, char *argv[]) {
  4.     int i;
  5.     for (i = 1; i < argc; i++) {
  6.         printf("%s ", argv[i]);
  7.     }
  8.     printf("\n");
  9. }
  10. void f(int argc, char *argv[], char *ary[]) {
  11.     int i, j, n, m;
  12.     n = argc;
  13.     m = n / 2;
  14.     for (i = 1; i < n; i++) {
  15.         j = (i <= m) ? (2 * i) : (n - (2 * (i - m)));
  16.         ary[j] = argv[i];
  17.     }
  18. }
  19. void g(int argc, char *argv[], char *ary[]) {
  20.     int i, j, n;
  21.     n = argc;
  22.     for (i = 1; i < n; i++) {
  23.         j = ((i % 2) == 0) ? (i / 2) : (n - ((i / 2) + 1));
  24.         ary[j] = argv[i];
  25.     }
  26. }
  27. int main_part11_254(int argc, char *argv[]) {
  28.     char **aryf;
  29.     char **aryg;
  30.     printf("[%d]\n", argc);
  31.     if (((argc - 1) % 2) == 0) {
  32.         aryf = malloc(argc * sizeof(char*));
  33.         aryg = malloc(argc * sizeof(char*));
  34.         print_ary(argc, argv);
  35.         f(argc, argv, aryf);
  36.         print_ary(argc, aryf);
  37.         g(argc, aryf, aryg);
  38.         print_ary(argc, aryg);
  39.         free(aryf);
  40.         free(aryg);
  41.     }
  42.     return 0;
  43. }
  44. int main(int argc, char *argv[]) {
  45.     char *argv1[] = {"", "1", "2", "3", "4", "5", "6"};
  46.     char *argv2[] = {"", "a", "b", "c", "d", "e", "f"};
  47.     if (argc <= 1) {
  48.         main_part11_254(sizeof(argv1) / sizeof(char*), argv1);
  49.         main_part11_254(sizeof(argv2) / sizeof(char*), argv2);
  50.     } else {
  51.         main_part11_254(argc, argv);
  52.     }
  53.     return 0;
  54. }
Success #stdin #stdout 0s 4220KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
[7]
1 2 3 4 5 6 
6 1 5 2 4 3 
1 2 3 4 5 6 
[7]
a b c d e f 
f a e b d c 
a b c d e f
https://ideone.com/frCiwG
language:
C (gcc 8.3)
created:
7 years ago
visibility:
secret

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!