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  1. #include <stdio.h>
  2.  
  3. #define MAXLINE 1000
  4.  
  5. int max;
  6. char line[MAXLINE];
  7. char longest[MAXLINE];
  8.  
  9.  
  10. int getline(void);
  11. void copy(void);
  12.  
  13. int main() {
  14.     int len;
  15.     extern int max;
  16.     extern char longest[];
  17.     max = 0;
  18.  
  19.     while ((len = getline()) > 0)
  20.     if (len > max) {
  21.         max = len;
  22.         copy();
  23.     }
  24.     if (max > 0) 
  25.         printf("%s", longest);
  26.     return 0;
  27. }
  28.  
  29.  
  30. int getline (void) {
  31.     int c, i; 
  32.     extern char line[];
  33.     for (i = 0; i < MAXLINE-1 && (c = getchar()) != EOF && c != '\n'; ++i)
  34.         line[i] = c;
  35.     if (c == '\n') {
  36.         line[i] = c;
  37.         ++i;
  38.     }
  39.     line[i] = '\0';
  40.  
  41.     return i;
  42. }
  43.  
  44. void copy(void) {
  45.     int i;
  46.     extern char line[], longest[];
  47.  
  48.     i = 0;
  49.     while ((longest[i] = line[i]) != '\0' ) ++i;
  50. }
Success #stdin #stdout 0s 9424KB
comments (?)
stdin
copy 
a
abc
this is the longest line
aaaaaaaa
aaaa
aa
stdout
copy 
this is the longest line
https://ideone.com/p8UA21
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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