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Number Theory

Problems with tag Number Theory

62 found, showing 1 to 30

1

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Add Digits ->

Easy, #258, 4 solutions

Apply Operations to Make String Empty ->

Medium, #3039, 2 solutions

Apply Operations to Maximize Score ->

Hard, #2818, 2 solutions

Check If It Is a Good Array ->

Hard, #1250, 2 solutions

Check if Point Is Reachable ->

Hard, #2543, 2 solutions

Closest Prime Numbers in Range ->

Medium, #2523, 2 solutions

Count Array Pairs Divisible by K ->

Hard, #2183, 2 solutions

Count Beautiful Substrings I ->

Medium, #2947, 2 solutions

Count Beautiful Substrings II ->

Hard, #2949, 2 solutions

Count Primes ->

Medium, #204, 4 solutions

Count the Number of Ideal Arrays ->

Hard, #2338, 2 solutions

Count the Number of Square-Free Subsets ->

Medium, #2572, 2 solutions

Count Valid Paths in a Tree ->

Hard, #2867, 2 solutions

Count Ways to Make Array With Product ->

Hard, #1735, 2 solutions

Distinct Prime Factors of Product of Array ->

Medium, #2521, 2 solutions

Find Greatest Common Divisor of Array ->

Easy, #1979, 2 solutions

Find the Number of Good Pairs I ->

Easy, #3162, 2 solutions

Find the Number of Good Pairs II ->

Medium, #3164, 2 solutions

GCD Sort of an Array ->

Hard, #1998, 2 solutions

Graph Connectivity With Threshold ->

Hard, #1627, 2 solutions

Greatest Common Divisor Traversal ->

Hard, #2709, 2 solutions

Insert Greatest Common Divisors in Linked List ->

Medium, #2807, 2 solutions

Kth Smallest Amount With Single Denomination Combination ->

Hard, #3116, 2 solutions

Largest Component Size by Common Factor ->

Hard, #952, 3 solutions

Make K-Subarray Sums Equal ->

Medium, #2607, 2 solutions

Maximize Score After N Operations ->

Hard, #1799, 3 solutions

Maximum Element-Sum of a Complete Subset of Indices ->

Hard, #2862, 2 solutions

Maximum GCD-Sum of a Subarray ->

Hard, #2941, 2 solutions

Maximum Prime Difference ->

Medium, #3115, 2 solutions

Minimize Length of Array Using Operations ->

Medium, #3012, 2 solutions