みんなが楽しいパーティー

gistfile1.go

package main

import (
    "math"
)

func main() {
    first   := []string {"f", "g", "s", "f"}
    second  := []string {"h", "f", "f", "b"}
    println(bestInvitation(first, second))
}

func bestInvitation(first, second []string) int {
    var ans int = 0

    for i := 0; i < len(first); i++ {
        f := 0
        s := 0
        for j := 0; j < len(first); j++ {
            if first[i] == first[j] { f++ }
            if first[i] == second[j] { f++ }
            if second[i] == second[j] { s++ }
            if second[i] == second[j] { s++ }
        }
        ans = int(math.Max(float64(f), float64(ans)))
        ans = int(math.Max(float64(s), float64(ans)))
    }
    return ans
}