#include <iostream.h>
#include <conio.h>
#include <string.h>

void main()
{
clrscr();
int slength;
char x[81]; //Allowing the user to input a maximum of 80 characters.
cout << “Enter the string : ” << endl;
cin>>x;
slength=strlen(x);
cout << “The length of the string ” << x << ” is ” << slength << “.” << endl;
getch();
}

This program takes in a string x as a screen input from the user.
It then determines the length of the string using the ‘strlen’ function.
This length is finally outputted using the ‘cout’ command.

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