Submission #2528196

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Source Code Expand

package main

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

var (
	reader = bufio.NewReader(os.Stdin)
	writer = bufio.NewWriter(os.Stdout)
)

func main() {
	defer writer.Flush()
	var N int
	fmt.Fscanf(reader, "%d\n", &N)
	l := make([]int, N)
	r := make([]int, N)
	var count int
	for i := 0; i < N; i++ {
		fmt.Fscanf(reader, "%d %d\n", &l[i], &r[i])
		count += r[i] - l[i] + 1
	}

	fmt.Fprintf(writer, "%d\n", count)
}

Submission Info

Judge Result