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Practice Zone • Computer Mathematics
15 Topics 109 Questions All Difficulty
Topics
All Questions Full list for Computer Mathematics 109 Boolean Algebra & Logic Practice Boolean Algebra & Logic with real questions. 5 Combinatorics Practice Combinatorics with real questions. 10 GCD/LCM & Euclid Practice GCD/LCM & Euclid with real questions. 13 Geometry Practice Geometry with real questions. 2 Graph Theory Basics Practice Graph Theory Basics with real questions. 4 Integers & Divisibility Practice Integers & Divisibility with real questions. 30 Linear Algebra Basics Practice Linear Algebra Basics with real questions. 2 Matrices Practice Matrices with real questions. 3 Modular Arithmetic Practice Modular Arithmetic with real questions. 10 Numerical Precision Practice Numerical Precision with real questions. 1 Primes & Factorization Practice Primes & Factorization with real questions. 12 Probability Practice Probability with real questions. 5 Recurrences Practice Recurrences with real questions. 4 Sets, Relations & Functions Practice Sets, Relations & Functions with real questions. 5 Trees & Counting Practice Trees & Counting with real questions. 3
Questions
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Even Or Odd
Easy
Jan 25, 2026
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Absolute Value
Easy
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Sign Of Number
Easy
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Last Digit
Easy
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Divisible By 3
Easy
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Divisible By 9
Easy
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Divisible By 11
Medium
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Divisible By 4 From Last Two Digits
Medium
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Divisible By 8 From Last Three Digits
Medium
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Divisible By 25
Easy
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Compare Fractions a/b and c/d
Hard
Jan 25, 2026
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Floor And Ceil Division
Hard
Jan 25, 2026
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Remainder Always Positive
Medium
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Round To Nearest Multiple
Hard
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Count Multiples In Range
Medium
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Smallest Multiple >= N
Easy
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Largest Multiple <= N
Easy
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Check Power Of Two
Medium
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Nearest Power Of Two
Medium
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Binary Length
Easy
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Digit Sum Mod 9
Medium
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Digital Root
Medium
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Check Divisible By 6
Easy
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Check Divisible By 12
Medium
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Minimum Steps To Make Divisible
Medium
Jan 25, 2026
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Reduce Ratio
Medium
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Count Divisors Naive
Medium
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Sum Of Divisors Naive
Hard
Jan 25, 2026
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Perfect Number Check
Hard
Jan 25, 2026
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Leap Year Simple
Easy
Jan 25, 2026
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GCD Of Two Numbers
Easy
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LCM Of Two Numbers
Easy
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GCD Of Array
Medium
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LCM Of Array Small
Hard
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Are Coprime
Easy
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Simplify Fraction
Medium
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GCD Of Differences
Hard
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Extended Euclid Coefficients
Hard
Jan 25, 2026
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Mod Inverse When Coprime
Hard
Jan 25, 2026
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LCM Using Prime Exponents
Hard
Jan 25, 2026
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GCD Queries Prefix Suffix
Hard
Jan 25, 2026
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Check If LCM Equals Product
Medium
Jan 25, 2026
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Count Coprime With N (Small)
Hard
Jan 25, 2026
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Euler Totient By Factorization
Hard
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Prime Check
Easy
Jan 25, 2026
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Next Prime
Medium
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Smallest Prime Factor
Easy
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Prime Factorization List
Medium
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Count Primes Up To N
Medium
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Goldbach Pair (Even)
Hard
Jan 25, 2026
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Check Semiprime
Hard
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Count Distinct Prime Factors
Medium
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Squarefree Check
Hard
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Largest Prime Factor
Medium
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Prime Gap Around N
Hard
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Mod Normalize
Easy
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Add Mod M
Easy
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Subtract Mod M
Easy
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Multiply Mod M
Hard
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Fast Power Mod
Medium
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Check Congruent
Easy
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Solve x ≡ a (mod m) Range
Hard
Jan 25, 2026
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Chinese Remainder (Two)
Hard
Jan 25, 2026
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Mod Inverse With Fermat
Medium
Jan 25, 2026
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Count Solutions Of ax ≡ b (mod m)
Hard
Jan 25, 2026
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Combinations nCr Small
Medium
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Permutations nPr
Easy
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Count Binary Strings Without Consecutive 1s
Hard
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Handshake Problem
Easy
Jan 25, 2026
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Choose Team With Captain
Medium
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Stars And Bars
Hard
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Count Subsets Size K
Easy
Jan 25, 2026
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Binomial Identity Check
Medium
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Circular Arrangements
Easy
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Derangements Small
Hard
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Probability Of Head Count
Hard
Jan 25, 2026
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Expected Value Of Dice
Easy
Jan 25, 2026
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At Least One Success
Hard
Jan 25, 2026
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Two Dice Sum Equals S
Medium
Jan 25, 2026
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Conditional Probability Simple
Easy
Jan 25, 2026
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Boolean Evaluate Expression
Medium
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De Morgan Apply
Easy
Jan 25, 2026
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XOR Basics
Easy
Jan 25, 2026
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Truth Table Count
Easy
Jan 25, 2026
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Implication Value
Medium
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Relation Reflexive Check
Medium
Jan 25, 2026
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Set Union Size
Easy
Jan 25, 2026
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Count Functions
Medium
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Injective Functions Count
Hard
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Surjective Functions Small
Hard
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Fibonacci n-th
Easy
Jan 25, 2026
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Arithmetic Progression Term
Easy
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Geometric Progression Term Mod
Medium
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Solve Linear Recurrence
Hard
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Graph Handshaking Lemma
Easy
Jan 25, 2026
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Edges From Degree Sum
Easy
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Tree Edges
Easy
Jan 25, 2026
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Bipartite Complete Edges
Easy
Jan 25, 2026
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Catalan Number Cn
Hard
Jan 25, 2026
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Binary Tree Node Bounds
Medium
Jan 25, 2026
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