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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <string.h>
  4.  
  5. void marquee(int cycle, const char *text, const char *base);
  6.  
  7. int main()
  8. {
  9.     const char *s = "Hello";
  10.     const char t[] = "**********";
  11.     int cycle = 0;
  12.  
  13.     printf("cycle?\n");
  14.     scanf("%d", &cycle);
  15.     if (cycle < 1) { cycle = 1; }
  16.     marquee(cycle, s, t);
  17.  
  18.     return 0;
  19. }
  20.  
  21. static void display(int pos, const char *text, int len_text, const char *base, int len_base);
  22.  
  23. void marquee(int cycle, const char *text, const char *base)
  24. {
  25.     int len_text = (int)strlen(text);
  26.     int len_base = (int)strlen(base);
  27.     int pos = 0;
  28.  
  29.     while (cycle >= 0) {
  30.         display(pos, text, len_text, base, len_base);
  31.  
  32.         pos--;
  33.         if (pos == -1) { cycle--; }
  34.         if (pos <= -len_text) { pos = len_base - 1; }
  35.     }
  36. }
  37.  
  38. static void display(int pos, const char *text, int len_text, const char *base, int len_base)
  39. {
  40.     int i;
  41.     for (i = 0; i < len_base; i++) {
  42.         int j = i - pos;
  43.         putchar(0 <= j && j < len_text ? text[j] : base[i]);
  44.     }
  45.     putchar('\n');
  46. }
  47.  
Success #stdin #stdout 0s 1836KB
comments (?)
stdin 
Standard input is empty
stdout 
cycle?
Hello*****
ello******
llo*******
lo********
o*********
*********H
********He
*******Hel
******Hell
*****Hello
****Hello*
***Hello**
**Hello***
*Hello****
Hello*****
https://ideone.com/jEPHbb
language:
C (gcc 8.3)
created:
11 years ago
visibility:
public

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