카타 8급 Multiply

1 Bash

#!/bin/bash -e
a=$1
b=$2
expr $a \* $b

#!/bin/bash -e
a=$1
b=$2
echo $((a*b))

2 C

int multiply(int a, int b) {
  return a * b;
}

3 C++

int multiply(int a, int b)
{
    return a * b;
}

4 Go

package multiply

func Multiply(a, b int) int {
  return a * b
}

6 Kotlin

fun multiply(x: Double, y: Double) = x * y

fun multiply(x: Double, y: Double): Double = x * y

fun multiply(x: Double, y: Double): Double {
    return x * y
}

7 PHP

function multiply($a, $b) {
  return $a * $b;
}

8 R

mul <- function(a, b) {
  a * b
}

mul <- function(a, b) {
  return(a * b);
}

mul <- `*`

mul = `*`