REPLACE 1ST OCCURRENCE OF STRING

• Problem Description

  
  How to replace first occurrence of a character with another character in a string using loop in C programming. 
  
  Input:
  1. The String character
  2. The Character that needs to be replaced in the given string
  3. The Character to be replaced in the string

• CODING ARENA

• #include <stdio.h>

  #include <string.h>

  int main()

  {

    char str[100],o,n;

    int i;

    scanf("%s",str);

    scanf("%s",&o);

    scanf("%s",&n);

    for(i=0;str[i]!='\0';i++)

    {

      if(str[i]==o)

      {

        str[i]=n;

        break;

      }

    }

    printf("%s",str);

    

    return 0;

  }

• 
  

• Test Case 1

  
  Input (stdin)

  srmunaversitylearningcentre
  
  a
  
  i
  
  

  Expected Output

  srmuniversitylearningcentre

• Test Case 2

  
  Input (stdin)

  SRASRASRA
  
  A
  
  M
  
  

  Expected Output

  SRMSRASRA