Array Reversal.c

Given an array, of size n, reverse it.

Author: himanshusharma89

Array Reversal.c

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+#include <stdio.h>
+#include <stdlib.h>
+
+int main()
+{
+    int num, *arr, i;
+    scanf("%d", &num);
+    arr = (int*) malloc(num * sizeof(int));
+    for(i = 0; i < num; i++) {
+        scanf("%d", arr + i);
+    }
+    /* Write the logic to reverse the array. */ 
+    int* left_ptr = arr;
+    int* right_ptr;
+    int temp;
+    for(i = 0; i < num; i++) {
+        if(i == num - 1) {
+            right_ptr = (arr + i);
+        }
+    }
+    while(left_ptr < right_ptr) {
+        temp = *right_ptr;
+        *right_ptr = *left_ptr;
+        *left_ptr = temp;
+        right_ptr--;
+        left_ptr++;
+    }
+      
+    for(i = 0; i < num; i++) {
+        printf("%d ", *(arr + i));
+    }
+    free(arr);
+    return 0;
+}