For problem statement at 1000-1999/1100-1199/1130-1139/1136/problemA.txt this is a correct solution, but verifier at 1000-1999/1100-1199/1130-1139/1136/verifierA.go ends with All tests passed can you fix the verifier? package main

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

func main() {
	in := bufio.NewReader(os.Stdin)

	var n int
	fmt.Fscan(in, &n)

	ans := 0
	r := make([]int, n)

	for i := 0; i < n; i++ {
		var l int
		fmt.Fscan(in, &l, &r[i])
	}

	var k int
	fmt.Fscan(in, &k)

	for i := 0; i < n; i++ {
		if r[i] >= k {
			ans = n - i
			break
		}
	}

	fmt.Println(ans)
}