a) Linked List

b) Queue, Stack

c) Binary Search Tree

d) Binary Tree,

e) Binary Search

f) Graph

a) Two Number Sum

b) Three Number Sum

c) Four Number Sum

d) Smallest Difference From Two Given Array Elements

e) Move Element to End

f) Sort Sub Array Problem

g) Largest Range Problem

h) Zig Zag Traverse Problem

a) Closest value problem

a) Bubble Sort

b) Insertion Sort

c) Selection Sort

d) Quick Sort

e) Heap Sort

f) Merge Sort