1. Write a program that prints the following array’s values in descending order:

Question

1. Write a program that prints the following array’s values in descending order:

                           int a[]={1,5,3,7,9,0,2,6,4,8};

2. A palindrome is a number or text phrase that reads the same backwards as forwards. For example, each of the following five-letter words is a palindrome: abcba, ghihg, bbbbb. Write a program containing a method that determines whether a five-letter word is a palindrome.

                      char ch[] = {'a', 'b', 'c', 'b', 'a'}; // it is a palindrome

                      char ch2[] = {'a', 'b', 'c', 'd', 'e'}; // it is not a palindrome

Explanation / Answer

Question (1)

#include <bits/stdc++.h>

#include <iostream>

using namespace std;

int main() {

int a[]={1,5,3,7,9,0,2,6,4,8};

int size =sizeof(a)/sizeof(a[0]);

sort(a, a+size);

for(int i=size-1;i>=0;i--)

cout<<a[i]<<" ";

return 0;

}

// OUTPUT

Success #stdin #stdout 0s 4504KB

QUESTION (2) :-

#include <bits/stdc++.h>

#include <iostream>

using namespace std;

int main() {

int j=0;

char ch[] = {'a', 'b', 'c', 'b', 'a'};

int size=sizeof(ch)/sizeof(ch[0]);

char ch1[size];

for(int i=size-1;i>=0;i--)

{

ch1[j]=ch[i];

j++;

}

for(int i=0;i<size;i++)

{

if(ch[i]!=ch1[i])

{

cout<<"it is not a palindrome ! ";

exit(0);

}

}

cout<<"it is a palindrome ! ";

return 0;

}

// OUTPUT

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