Question

How to remove extra spaces from a string in C

Answer 1

#include <stdio.h>
#include <string.h>
   
void remove_extra_spaces(char *s) {
    char *p;
     
    while ((p = strstr(s, "  "))) {
        strcpy(p, p + 1);
    }
    if (s[0] == ' ') strcpy(s, s + 1);
    if (s[strlen(s) - 1] == ' ') s[strlen(s) - 1] = '\0';
}
    
int main() {
    char s[50] = "    c python      c++     java php   ";
  
    remove_extra_spaces(s);
       
    puts(s);
}
    
   
   
    
/*
run:
     
c python c++ java php
   
*/

 

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