Array Reversal Discussions | C | HackerRank
Array Reversal in C - Hacker Rank Solution
Array Reversal
Given an array, of size , reverse it.
Example: If array, , after reversing it, the array should be, .
Input Format The first line contains an integer, ,
denoting the size of the array.
The next line contains spaceseparated integers denoting the elements of the array.
Constraints , where is the element of the array.
Output Format The output is handled by the code given in the editor, which would print the array.
Sample Input 0
6
16 13 7 2 1 12
Sample Output 0
12 1 2 7 13 16
Explanation 0
Given array, = .
After reversing the array, =
Sample Input 1
7
1 13 15 20 12 13 2
Sample Output 1
2 13 12 20 15 13 1
Sample Input 2
8
15 5 16 15 17 11 5 11
Sample Output 2
11 5 11 17 15 16 5 15
#include <stdio.h>
#include <stdlib.h>
int main()
{
int num, *arr,j, i,*temp;
scanf("%d", &num);
arr = (int*) malloc(num * sizeof(int));
for(i = 0; i < num; i++) {
scanf("%d", arr + i);
}
temp=(int*)malloc(num*sizeof(int));
/* Write the logic to reverse the array. */
for(i=num-1,j=0;i>=0;i--,j++)
{
*(temp+j)= *(arr+i);
}
for(i = 0; i < num; i++)
printf("%d ", *(temp + i));
return 0;
}
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