Question

Lab 7.9 LAB Write a C++ program to check if elements of an array are same or not when you it read from front or back, example 1 2|3|3|2|1

Answer 1

The C++ code for the program is :

#include <iostream>

using namespace std ;

int main() {

int a[100]; // the array to be considered

int i,j,n;

int flag = 0;

cout << "enter the size of the array \n";

cin >> n ;

cout << " enter the array \n";

for(i=0;i<n;i++)

{

cin >> a[i];

}

for ( i=0,j=n-1; i < n/2; i++, j--) // run the loop from both the end to compare each element

{

if(a[i]!=a[j]) // check for mismatch

{

flag = 1; // if mismatch found, flag becomes 1

break;

}

}

if(flag == 0)

{

cout << " the elements of the array are same when read from front or back \n";

}

else

{

cout << " the elements of the array are not same when read from front or back \n";

}

}

Screenshot of the program

#include <iostream> using namespace std; int main() { int a[100]; // the array to be considered int i,j,n; int flag = 0; cout << "enter the size of the array \n"; cin >>n; cout << " enter the array \n"; for(i=0;i<n;i++) cin >> a[i]; for (i=0,j-n-1; i<n/2; i++, j--) // run the loop from both the end to compare each element if(a[i]!=a[j]) // check for mismatch flag = 1; // if mismatch found, flag becomes 1 break; if(flag == 0) cout << " the elements of the array are same when read from front or back \n"; else cout << " the elements of the array are not same when read from front or back \n";

Screenshot of the output :