Interview

Interview Guide

Coding Problems List

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Data Scientist Career Guide and Interview Preparation

Problems

add-two-numbers

alternating-characters

balanced-binary-tree

balanced-lineup

best-time-to-buy-and-sell-stock-ii

best-time-to-buy-and-sell-stock-iii

best-time-to-buy-and-sell-stock

binary-representation

binary-search-tree-iterator

binary-tree-inorder-traversal

binary-tree-level-order-traversal-ii

binary-tree-level-order-traversal

binary-tree-maximum-path-sum

binary-tree-path-sum

binary-tree-paths

binary-tree-postorder-traversal

binary-tree-preorder-traversal

binary-tree-zigzag-level-order-traversal

chocolate-feast

circular-array-rotation

climbing-stairs

clone-binary-tree

coins-in-a-line

combination-sum-ii

combination-sum-iv

combination-sum

compare-strings

construct-binary-tree-from-inorder-and-postorder-traversal

construct-binary-tree-from-preorder-and-inorder-traversal

container-with-most-water

continuous-subarray-sum

convert-binary-search-tree-to-sorted-doubly-linked-list

convert-sorted-array-to-binary-search-tree-with-minimal-height

convert-sorted-list-to-balanced-bst

copy-list-with-random-pointer

cosine-similarity

count-1-in-binary

data-stream-median

delete-node-in-the-middle-of-singly-linked-list

design-add-and-search-words-data-structure

distinct-subsequences

evaluate-reverse-polish-notation

find-minimum-in-rotated-sorted-array-ii

find-minimum-in-rotated-sorted-array

find-peak-element

find-the-missing-number

first-bad-version

first-missing-positive

first-position-of-target

flatten-binary-tree-to-linked-list

game-of-thrones

generate-parentheses

graph-valid-tree

halloween-party

house-robber-ii

house-robber-iii

implement-queue-by-two-stacks

implement-strstr

implement-trie-prefix-tree

insert-interval

insert-node-in-a-binary-search-tree

insertion-sort-list

integer-to-roman

interleaving-positive-and-negative-numbers

interleaving-string

intersection-of-two-arrays-ii

intersection-of-two-arrays

intersection-of-two-linked-lists

interval-minimum-number

invert-binary-tree

kth-largest-element

kth-smallest-number-in-sorted-matrix

length-of-last-word

letter-combinations-of-a-phone-number

linked-list-cycle-ii

linked-list-cycle

longest-common-prefix

longest-common-subsequence

longest-common-substring

longest-consecutive-sequence

longest-increasing-continuous-subsequence

longest-increasing-subsequence

longest-palindromic-substring

longest-substring-without-repeating-characters

lowest-common-ancestor-of-a-binary-tree

manasa-and-stones

majority-number

majority-number-ii

majority-number-iii

matrix-zigzag-traversal

max-points-on-a-line

maximum-depth-of-binary-tree

maximum-product-subarray

maximum-subarray-difference

maximum-subarray-ii

maximum-subarray

merge-intervals

merge-k-sorted-lists

merge-sorted-array

merge-two-sorted-arrays

merge-two-sorted-lists

minimum-adjustment-cost

minimum-depth-of-binary-tree

minimum-path-sum

minimum-size-subarray-sum

minimum-subarray

mock-hanoi-tower-by-stacks

next-permutation

nth-to-last-node-in-list

number-of-airplanes-in-the-sky

number-of-islands

o1-check-power-of-2

palindrome-linked-list

palindrome-partitioning

partition-array-by-odd-and-even

partition-array

permutation-index

permutation-sequence

permutations-ii

previous-permutation

print-numbers-by-recursion

product-of-array-exclude-itself

recover-rotated-sorted-array

remove-duplicates-from-sorted-array-ii

remove-duplicates-from-sorted-array

remove-duplicates-from-sorted-list-ii

remove-duplicates-from-sorted-list

remove-linked-list-elements

remove-node-in-binary-search-tree

remove-nth-node-from-end-of-list

repeated-dna-sequences

restore-ip-addresses

reverse-integer

reverse-linked-list-ii

reverse-linked-list

reverse-nodes-in-k-group

reverse-words-in-a-string

roman-to-integer

route-between-two-nodes-in-graph

search-a-2d-matrix-ii

search-a-2d-matrix

search-for-a-range

search-in-rotated-sorted-array-ii

search-in-rotated-sorted-array

search-insert-position

search-range-in-binary-search-tree

segment-tree-build-ii

segment-tree-build

segment-tree-modify

segment-tree-query-ii

segment-tree-query

serialize-and-deserialize-binary-tree

set-matrix-zeroes

sherlock-and-gcd

sherlock-and-permutations

sherlock-and-squares

sherlock-and-the-beast

shortest-unique-prefix

single-number-ii

single-number-iii

sort-integers-ii

sort-letters-by-case

space-replacement

spiral-matrix-ii

string-permutation

sum-of-two-integers

super-ugly-number

surrounded-regions

swap-nodes-in-pairs

swap-two-nodes-in-linked-list

the-love-letter-mystery

the-quickest-way-up

the-skyline-problem

the-smallest-difference

topological-sorting

trapping-rain-water

two-strings-are-anagrams

unbounded-knapsack

unique-binary-search-trees-ii

unique-binary-search-trees

unique-characters

unique-paths-ii

valid-palindrome

valid-parentheses

validate-binary-search-tree

word-count-map-reduce

Minimum Path Sum

Problem

Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right which minimizes the sum of all numbers along its path.

Note

You can only move either down or right at any point in time.

Online Judge

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