Project Euler

Project Euler Problem 83: Path sum: four ways moves Problem 81 and 82 to the next level, now we can go into all directions. ...

In Problem 82: Path sum: three ways we have the same basic task as in the previous problem, we just have to deal with movements in three directions now. ...

In Problem 81: Path sum: two ways we have to find a special path through a 2D lattice. ...

In Project Euler Problem 80: Square Root Digital Expansion we have to compute many digits in a square root. ...

Project Euler Problem 79: Passcode derivation give us three digit samples from a secret passcode. ...

Project Euler Problem 78: Coin partitions throws us back to partitions of integers, but now with a more demanding task. ...

Project Euler Problem 77: Prime summations continues with number partitions, though we now all summands have to be primes. ...

Project Euler Problem 76: Counting summations asks us to find how many different ways an integer can be written as a sum of integers. ...

In Project Euler Problem 75: Singular Integer Right Triangles we take a look at the Pythogorean theorem. ...

Project Euler Problem 74: Digit factorial chains brings us back to playing with digits of numbers. ...