Practice with Project Euler Roadmap

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1 Getting Started & Familiarization (1-25)

Problem 1: Multiples of 3 or 5
Problem 2: Even Fibonacci numbers
Problem 3: Largest prime factor
Problem 5: Smallest multiple
Problem 10: Summation of primes

2 Basic Number Theory (26-50)

Problem 27: Quadratic primes
Problem 31: Coin sums
Problem 35: Circular primes
Problem 41: Pandigital prime
Problem 48: Self powers

3 Combinatorics & Probability (51-75)

Problem 53: Combinatoric selections
Problem 65: Convergents of e
Problem 71: Ordered fractions
Problem 72: Counting fractions

4 Advanced Number Theory (76-100)

Problem 76: Counting summations
Problem 81: Path sum: two ways
Problem 87: Prime power triples
Problem 97: Large non-Mersenne prime
Problem 100: Arranged probability

5 Algorithms & Data Structures (101-125)

Problem 102: Triangle containment
Problem 107: Minimal network
Problem 112: Bouncy numbers
Problem 119: Digit power sum

6 Cryptography & Congruences (126-150)

Problem 129: Repunit divisibility
Problem 132: Large repunit factors
Problem 134: Prime pair connection
Problem 145: Reversible numbers

7 Geometry & Pathfinding

Problem 153: Gaussian Integers
Problem 162: Hexadecimal numbers
Problem 82: Path sum: three ways

8 Advanced Combinatorics (176-200)

Problem 179: Consecutive positive divisors
Problem 187: Semiprimes
Problem 191: Prize Strings
Problem 200: Prime-proof sqube

9 Game Theory

Problem 301: Nim
Problem 299: Three similar triangles
Problem 238: Ponderous Paths

10 Big Number Handling

Problem 20: Factorial digit sum
Problem 25: 1000-digit Fibonacci number
Problem 55: Lychrel numbers
Problem 56: Powerful digit sum

11 Optimization & Search

Problem 114: Counting block combinations I
Problem 115: Counting block combinations II
Problem 103: Special subset sums: optimum
Problem 166: Criss Cross

12 Thử thách đỉnh cao (201+)

Problem 205: Dice Game
Problem 206: Concealed Square
Problem 357: Prime generating integers
Problem 203: Squarefree Binomial Coefficients

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