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Regular expressions (Easy)#3181

Абдан жеңил · Strings · Dynamic programming

Regular expressions (Hard)#3182

Татаал · Strings · Dynamic programming

Join#3183

Орточо · Sorting · Binary Search · Hashing

Boards (Easy)#3184

Жеңил · Dynamic programming

Boards (Hard)#3185

Абдан жеңил · Dynamic programming

Invisible point#3186

Абдан жеңил · Binary Search

Calculator#3187

Татаал · Implementation

Miles and kilometers#3188

Абдан жеңил · Dynamic programming

The Triangle#3189

Орточо · Dynamic programming

The Primes#3191

Жеңил · Brute force · Math · Implementation

The Balance#3195

Татаал · Number theory · Math

Make a Sequence#3196

Орточо · Brute force

Leaky Cryptography#3197

Татаал · Bitwise Operations · Math · Constructive Algorithms

Pathological Paths#3198

Орточо · Trees · Strings

Confusing Login Names#3199

Орточо · Dynamic programming · Strings

Dice Puzzle#3200

Жеңил · Brute force · Implementation

Color the Map#3201

Орточо · Graphs

Inherit the Spheres#3202

Абдан татаал · Geometry · Depth-first Search · Sorting · Graphs

Crossing Prisms#3203

Орточо · Geometry

Array games#3204

Абдан татаал · Dynamic programming

Birthday#3205

Татаал · Brute force · Sorting

The Safest Path#3206

Орточо · Graphs · Shortest paths

Double Necklace#3207

Абдан татаал · Combinatorics · Math

Rabbit Olympics#3208

Абдан жеңил · Greedy algorithms · Sorting

Palindrome#3209

Абдан жеңил · Strings

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