implement simple functions using a string. Read a string from a user and stored

Question

implement simple functions using a string. Read a string from a user and stored it in a 1D character array. Implement a function to calculate the length of a string. Also implement search and replace function where you look for a character (provided

by the user) in the string and if the character is present in the string then replace all the occurrence of the

character by the character '#'.

the sample oytput is:

Enter a string : asdasfsadfsa

Input string is asdasfsadfsa

Length of the string is 12

Enter a character to replace: d

String after the replacement operation is as#asfsa#fsa

Thanks!

Explanation / Answer

#include<stdio.h>

int length1(char str[]){
    int i,count=0;
    for(i=0;str[i]!='';i++){
            count++;
    }
    return count;
}

void main(){
      char *str;
      char ch;
      int count = 0,i;
      printf(" Enter the String: ");
      scanf("%s ",str);
      printf(" Enter the char to replace: ");
      scanf("%c",&ch);
      printf("%c character is : ",ch);
      for(i=0;str[i]!='';i++){
           if(str[i]==ch){
               str[i]='#';
           }
        }
      printf(" The length of the string is %d.",length1(str));
      printf(" The string is %s.",str);
     
}

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