README.md

Project Euler Solutions

C++ codes for project euler problems. If some problems are tricky I will try to provide an explanation for them or link to some resource explaining it.

Goal is to find a solution but it may not be the most efficient one!

Progress ⌛

no	Problem name	status	Project Euler link
1	Multiples of 3 or 5	✅	link
2	Even Fibonacci Numbers		link
3	Largest Prime Factor		link
4	Largest Palindrome Product		link
5	Smallest Multiple		link
6	Sum Square Difference	✅	link
7	10001st Prime	✅	link
8	Largest Product in a Series		link
9	Special Pythagorean Triplet		link
10	Summation of Primes		link
11	Largest Product in a Grid		link
12	Highly Divisible Triangular Number		link
13	Large Sum		link
14	Longest Collatz Sequence		link
15	Lattice Paths		link
16	Power Digit Sum		link
17	Number Letter Counts		link
18	Maximum Path Sum I		link
19	Counting Sundays		link
20	Factorial Digit Sum		link
21	Amicable Numbers		link
22	Names Scores		link
23	Non-Abundant Sums		link
24	Lexicographic Permutations		link
25	$1000$-digit Fibonacci Number		link
26	Reciprocal Cycles		link
27	Quadratic Primes		link
28	Number Spiral Diagonals		link
29	Distinct Powers		link
30	Digit Fifth Powers		link
31	Coin Sums		link
32	Pandigital Products		link
33	Digit Cancelling Fractions		link
34	Digit Factorials		link
35	Circular Primes		link
36	Double-base Palindromes		link
37	Truncatable Primes		link
38	Pandigital Multiples		link
39	Integer Right Triangles		link
40	Champernowne's Constant		link
41	Pandigital Prime		link
42	Coded Triangle Numbers		link
43	Sub-string Divisibility		link
44	Pentagon Numbers		link
45	Triangular, Pentagonal, and Hexagonal		link
46	Goldbach's Other Conjecture		link
47	Distinct Primes Factors		link
48	Self Powers		link
49	Prime Permutations		link
50	Consecutive Prime Sum		link
51	Prime Digit Replacements		link
52	Permuted Multiples		link
53	Combinatoric Selections		link
54	Poker Hands		link
55	Lychrel Numbers		link
56	Powerful Digit Sum		link
57	Square Root Convergents		link
58	Spiral Primes		link
59	XOR Decryption		link
60	Prime Pair Sets		link
61	Cyclical Figurate Numbers		link
62	Cubic Permutations		link
63	Powerful Digit Counts		link
64	Odd Period Square Roots		link
65	Convergents of $e$		link
66	Diophantine Equation		link
67	Maximum Path Sum II		link
68	Magic 5-gon Ring		link
69	Totient Maximum		link
70	Totient Permutation		link
71	Ordered Fractions		link
72	Counting Fractions		link
73	Counting Fractions in a Range		link
74	Digit Factorial Chains		link
75	Singular Integer Right Triangles		link
76	Counting Summations		link
77	Prime Summations		link
78	Coin Partitions		link
79	Passcode Derivation		link
80	Square Root Digital Expansion		link
81	Path Sum: Two Ways		link
82	Path Sum: Three Ways		link
83	Path Sum: Four Ways		link
84	Monopoly Odds		link
85	Counting Rectangles		link
86	Cuboid Route		link
87	Prime Power Triples		link
88	Product-sum Numbers		link
89	Roman Numerals		link
90	Cube Digit Pairs		link
91	Right Triangles with Integer Coordinates		link
92	Square Digit Chains		link
93	Arithmetic Expressions		link
94	Almost Equilateral Triangles		link
95	Amicable Chains		link
96	Su Doku		link
97	Large Non-Mersenne Prime		link
98	Anagramic Squares		link
99	Largest Exponential		link
100	Arranged Probability		link

Script to generate table 👆

Refer to this README file for instructions on how to generate this table using a script for as many problems as you want!