Program to Replace a Character in a String.

/*Write a function strreplace(s,chr,repl_chr) which will replace each occurrences of character chr with the character repl_chr in the string s. The function returns the number of replacements.*/

int strreplace(char [],char,char);
main()
{
 char s[160],c,r;
 int i;
 clrscr();
 printf("Enter any string \(word or sentence\).\n");

 gets(s);
 printf("\nYou enter the following string:\n");
 puts(s);
 printf("\nEnter the character you want to replace. -> ");
 c=getche();
 printf("\nEnter the character you want to insert. -> ");
 r=getche();
 printf("\nYou entered \"%c\" to replace with \"%c\".",c,r);
 i=strreplace(s,c,r);
 printf("\nAfter replacement, new string is :\n");
 puts(s);
 printf("\nThe total number of replacements is %d.",i);
 getch();
}
int strreplace(char s[],char chr,char repl_chr)
{
 int c=0,i;
 for(i=0;s[i]!='\0';i++)
 {
  if(s[i]==chr)
  {
   s[i]=repl_chr;
   c++;
  }
 }
 return c;
}

Output:

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