reverse
// Iterative C++ program to reverse an array
#include <bits/stdc++.h>
using namespace std;
/* Function to reverse arr[] from start to end*/
void rvereseArray(int arr[], int start, int end)
{
while (start < end)
{
int temp = arr[start];
arr[start] = arr[end];
arr[end] = temp;
start++;
end--;
}
}
/* Utility function to print an array */
void printArray(int arr[], int size)
{
for (int i = 0; i < size; i++)
cout << arr[i] << " ";
cout << endl;
}
/* Driver function to test above functions */
int main()
{
int arr[] = {1, 2, 3, 4, 5, 6};
int n = sizeof(arr) / sizeof(arr[0]);
// To print original array
printArray(arr, n);
// Function calling
rvereseArray(arr, 0, n-1);
cout << "Reversed array is" << endl;
// To print the Reversed array
printArray(arr, n);
return 0;
}
4.4
10
#include<stdio.h>
#include<ctype.h> // to use system defined function islower & toupper
int main()
{
printf("\n\n\t\tStudytonight - Best place to learn\n\n\n");
char alphabet;
printf("Enter an alphabet : ");
putchar('\n'); // to move to next Line
alphabet=getchar();
printf("\n\nReverse case of %c is : ",alphabet);
if(islower(alphabet))
putchar(toupper(alphabet));
else
// must be an uppercase character
printf("%c",tolower(alphabet)) ;
printf("\n\n\t\t\tCoding is Fun !\n\n\n");
return 0;
}
Thank you!
10
0
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