String functions in C

1. C Program to Find the Frequency of Characters in a String 2. C Program to Reverse a String by Passing it to Function Source Code 1: #include <stdio.h> int main(){ char c[1000],ch; int i,count=0; printf("Enter a string: "); gets(c); printf("Enter a characeter to find frequency: "); scanf("%c",&ch); for(i=0;c[i]!='\0';++i) { if(ch==c[i]) ++count; } printf("Frequency of %c = %d", ch, count); return 0; } Output Enter a string: md. ahsan arif Enter a frequency to find frequency: a Frequency of a = 3   2:  #include<stdio.h> #include<string.h> void Reverse(char str[]); int main(){ char str[100]; printf("Enter a string to reverse: "); gets(str); Reverse(str); printf("Reversed string: "); puts(str); return 0; } void Reverse(char str[]){ int i,j; char temp[100]; for(i=strlen(str)-1,j=0; i+1!=0; --i,++j) { temp[j]=str[i]; } temp[j]='\0'; strcpy(str,temp); }   Output Enter a string to reverse: fira Reversed string: arif