package main

 import (

     "fmt"

 )

 func firstMissingPositive(nums []int) int {

     m := make(map[int]int)

     for a := ; a < len(nums); a++ {

         if nums[a] >  {

             _, ok := m[nums[a]]

             if ok == false {

                 m[nums[a]] = nums[a]

             }

         }

     }

     i :=

     _, ok := m[i]

     for ok {

         i = i +

         _, ok := m[i]

         if ok == false {

             break

         }

     }

     return i

 }

 func main() {

     var n []int

     n = append(n, )

     n = append(n, )

     n = append(n, )

     n = append(n, )

     n = append(n, )

     r := firstMissingPositive(n)

     fmt.Println(r)

 }