Make sieve much faster

Dependencies

• [2] 7OFUWNAI Add prime searching functions

Change contents

• edit in snippets/primes/primes_test.go at line 29
  [2.569]

  [2.569]
  + {10, []bool{false, false, false, false, true, false, true, false, true, true, true}},
• replacement in snippets/primes/primes.go at line 56
  [2.2696]→[2.2696:2727](∅→∅)
  − for p := 2; p <= limit; p++ {
  [2.2696]

  [2.2727]
  + for p := 2; p*p <= limit; p += 2 {
• edit in snippets/primes/primes.go at line 61
  [2.2809]

  [2.2809]
  + if p == 2 {

  + p--

  + }