[Go] BOJ / 2444번 / 별 찍기 - 7

💻 문제

2444번: 별 찍기 - 7

 

📜 풀이

package main

import (
	"bufio"
	"fmt"
	"os"
)

func main() {
	var a int

	r := bufio.NewReader(os.Stdin)
	w := bufio.NewWriter(os.Stdout)

	defer w.Flush()

	fmt.Fscanln(r, &a)

	for i := 1; i <= 2*a-1; i++ {
		star := '*'
		blank := ' '
		if i <= a {
			for j := 0; j < a-i; j++ {
				fmt.Fprint(w, string(blank))
			}
			for j := 0; j < 2*i-1; j++ {
				fmt.Fprint(w, string(star))
			}
			fmt.Fprintln(w, "")
		} else {
			for j := 0; j < i-a; j++ {
				fmt.Fprint(w, string(blank))
			}
			for j := 0; j < 4*a-2*i-1; j++ {
				fmt.Fprint(w, string(star))
			}
			fmt.Fprintln(w, "")
		}
	}
}