Essential Data Structures
Master these for coding interviews and efficient programming.
Common Structures
- Arrays and Strings
- Linked Lists
- Stacks and Queues
- Trees and Graphs
- Hash Tables
Algorithm Categories
Sorting, searching, dynamic programming, etc.
// Binary search implementation
function binarySearch(arr, target) {
let left = 0;
let right = arr.length - 1;
while (left <= right) {
const mid = Math.floor((left + right) / 2);
if (arr[mid] === target) return mid;
if (arr[mid] < target) left = mid + 1;
else right = mid - 1;
}
return -1;
}Practice these algorithms regularly.