Helpful code snippets in GoLang for competitive coding

code_snip.go

package main

import (
  "fmt"
  "index/suffixarray"
)

func main() {
  //readn_arr()
  suffixarray_usage()
}

func suffixarray_usage() {
  index:= suffixarray.New([]byte("HelloIamRupalIamiam"))
  
  fmt.Println("search for Hell")
  items:= index.Lookup([]byte("Hell"), 1) //n means num of occurances to find
                                          // -1 means all
  for i, v:= range items {
    fmt.Println(i, v)
  }
  
  fmt.Println("search for Rupal")
  items= index.Lookup([]byte("Rupal"), -1)
  for i, v:= range items {
    fmt.Println(i, v)
  }
  
  fmt.Println("search for Iam")
  items= index.Lookup([]byte("Iam"), -1)
  for i, v:= range items {
    fmt.Println(i, v)
  }
  
  //get original string we made the index of
  fmt.Println("Index:", string(index.Bytes())) //return []byte
}

func readn_arr() {
  var n int
  fmt.Scanf("%d", &n)
  a:= make([]int, n)
  for i:=0; i<n; i++ {
    fmt.Scanf("%d", &a[i])
  }
  fmt.Println(a)
}