fork download
copy 
  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <ctype.h>
  4. #include <stdbool.h>
  5.  
  6. int main() {
  7.     char input[99999];
  8.     char output[99999];
  9.     scanf(" %[^\n]", input); 
  10.  
  11.     int in_len = strlen(input);
  12.     int out_len = 0;
  13.     int start = 0;
  14.  
  15.     while(input[start] == ' ') start++;
  16.  
  17.     if(start >= in_len){
  18.         printf("No words!");
  19.         return 0;
  20.     }
  21.  
  22.     bool space = false;    
  23.     bool isWord = false;
  24.  
  25.     for(int i = start; i < in_len; i++){
  26.         if(input[i] == ' '){
  27.             if(space){
  28.                 continue;
  29.             }
  30.             else{
  31.                 space = true;
  32.                 output[out_len++] = input[i];
  33.             }
  34.         }
  35.         else {
  36.             output[out_len++] = input[i];
  37.             isWord = true;
  38.             space = false;
  39.         }
  40.     }
  41.  
  42.     while(out_len > 0 && output[out_len - 1] == ' '){
  43.         out_len--;
  44.     }
  45.  
  46.     output[out_len] = '\0'; 
  47.  
  48.     if(isWord){
  49.         printf("%s", output);
  50.     }
  51.     else{
  52.         printf("No words!");
  53.     }
  54.  
  55.     return 0;
  56. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy
stdout
copy 
No words!
https://ideone.com/VEPyVP
language:
C (gcc 8.3)
created:
15 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!