We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
It's just because in the '(rot-1)th' elements of the array you will have negative indexes, causing errors or, even, segmentation error (as in test case 4). So, doing this, you add N to negative indexes to retrive the correct values from the former array, without rotating it at all.
Cookie support is required to access HackerRank
Seems like cookies are disabled on this browser, please enable them to open this website
Circular Array Rotation
You are viewing a single comment's thread. Return to all comments →
It's just because in the '(rot-1)th' elements of the array you will have negative indexes, causing errors or, even, segmentation error (as in test case 4). So, doing this, you add N to negative indexes to retrive the correct values from the former array, without rotating it at all.