K5kC | Code & More
Computer Science
Algorithms
Programming Languages
Database
System Design
Problems
Blind 75
Difficulty: Easy
Difficulty: Medium
Difficulty: Hard
Videos
Projects
Android
Data Science
Computer Vision
Simulations
Tools
UUID Generator
Code Formatter
Search
⌘K
Count the Number of Fair Pairs
Copy title
Copy link
medium
Solve on LeetCode
Related Tags
binary-search
bit-manipulation
bitmask
brainteaser
breadth-first-search
depth-first-search
dynamic-programming
graph
greedy
hash-table
heap-priority-queue
leetcode
math
matrix
prefix-sum
search/binary
segment-tree
shortest-path
simulation
string
tree
two-pointers
union-find
Please enable JavaScript to view the
comments powered by Disqus.