largest-series-product

Largest Series Product

Welcome to Largest Series Product on Exercism's Rust Track. If you need help running the tests or submitting your code, check out HELP.md.

Instructions

Given a string of digits, calculate the largest product for a contiguous substring of digits of length n.

For example, for the input '1027839564', the largest product for a series of 3 digits is 270 (9 * 5 * 6), and the largest product for a series of 5 digits is 7560 (7 * 8 * 3 * 9 * 5).

Note that these series are only required to occupy adjacent positions in the input; the digits need not be numerically consecutive.

For the input '73167176531330624919225119674426574742355349194934', the largest product for a series of 6 digits is 23520.

These iterators may be useful, depending on your approach

• Windows
• Product

Source

Created by

• @IanWhitney

Contributed to by

• @coriolinus
• @cwhakes
• @eddyp
• @efx
• @ErikSchierboom
• @lutostag
• @mkantor
• @nfiles
• @petertseng
• @rofrol
• @stringparser
• @xakon
• @ZapAnton

Based on

A variation on Problem 8 at Project Euler - http://projecteuler.net/problem=8