Level 1
1) Source Code to Calculated Length without Using strlen() Function
#include<conio.h>
#include<stdio.h>
void main()
{
int l; //Variable used to calculate Lenght
char string[50]; //Declared a String.
clrscr(); //For Clearing the Screen.
printf("Enter the String : "); //For printing
gets(string); //For Input.
for(l=0;string[l]!=NULL;l++) //For loop
{} //it will increment the value of 'l' till the NUll is repoter in string
printf("\nLenght is : %d",i ); //Printing
getch(); //Getting a chracter or waiting for key press.
}
2) C Program to Reverse a String by Passing it to Function
#include<conio.h>#include<stdio.h>
void length(char *a)
{
int i,l;
char temp[50]; //temporary String
for(i=0;a[i]!=NULL;i++) //Calculating Sting length
{}
l=i-1;
for(i=0;i<a[i]!=NULL;i++,l--) //Logic
{temp[l]=a[i];
}
printf("Reverse of String is %s",temp); //Printing Reverse String
}
void main()
{
char string[50];
clrscr(); // Clearing the Screen.
printf("Enter the String to Reverse it :"); //Printing
gets(string); //Input
length(&string); //Calling Function Length
getch();
}
