Replace character in string c++

 Replace character in string c++

Given an input string S and two characters c1 and c2, you need to replace every occurrence of character c1 with character c2 in the given string.

Input Format :

Line 1 : Input String S
Line 2 : Character c1 and c2 (separated by space)

Output Format :

Updated string

Constraints :

1 <= Length of String S <= 10^6

Sample Input :

abacd
a x

Sample Output :

xbxcd

c++ code:

void replaceCharacter(char input[], char c1, char c2) {
    /* Don't write main().
     * Don't read input, it is passed as function argument.
     * No need to print or return the output. 
     * Change in the given input string itself.
     * Taking input and printing output is handled automatically.
     */
  if(input==nullptr) return;
  for(int i=0; input[i] !='\0'; i++)
  {
    if(input[i]==c1)
    {
      input[i]=c2;
    }
  }
}




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Milan Tomic

Hi. I’m Designer of Blog Magic. I’m CEO/Founder of ThemeXpose. I’m Creative Art Director, Web Designer, UI/UX Designer, Interaction Designer, Industrial Designer, Web Developer, Business Enthusiast, StartUp Enthusiast, Speaker, Writer and Photographer. Inspired to make things looks better.

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