Submission #11616167

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Source Code Expand

package main

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

func out(x ...interface{}) {
	fmt.Println(x...)
}

var sc = bufio.NewScanner(os.Stdin)

func getInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func getString() string {
	sc.Scan()
	return sc.Text()
}

// min, max, asub, absなど基本関数
func max(a, b int) int {
	if a > b {
		return a
	}
	return b
}

func min(a, b int) int {
	if a < b {
		return a
	}
	return b
}

func asub(a, b int) int {
	if a > b {
		return a - b
	}
	return b - a
}

func abs(a int) int {
	if a >= 0 {
		return a
	}
	return -a
}

func main() {
	sc.Split(bufio.ScanWords)
	sc.Buffer([]byte{}, 1000000)

	s := getString()
	n := len(s) - 1
	a1 := 0
	a2 := 0
	for i, v := range s {
		// out(i)
		x := 0
		y := 0
		if v == 'U' {
			x += n - i
			y += i
		} else {
			y += n - i
			x += i
		}
		a1 += x
		a2 += y
		// out(x, y, a1, a2)
	}
	out(a1 + a2*2)
}

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