Project Euler

[ホーム](https://redmine.noppi.jp) - [[Wiki|Project Euler]]

# [[Problem 6]]

```scheme

#!r6rs

#!chezscheme

(import (chezscheme))

(define answer-6

  (let loop ((n 1) (sum-all 0) (squared-all 0))

    (if (< 100 n)

      (- (expt sum-all 2) squared-all)

      (loop (add1 n) (+ sum-all n) (+ squared-all (expt n 2))))))

(printf "6: ~D~%" answer-6)

```