count-of-range-sum_test.go

package problem0327

import (
	"fmt"
	"testing"

	"github.com/stretchr/testify/assert"
)

// tcs is testcase slice
var tcs = []struct {
	nums  []int
	lower int
	upper int
	ans   int
}{

	{[]int{13, 6, 13, 4, 27, -14, -13, 15, -4, 13, -15, 21, -23, 19, 3, -14, -27, -17, -4, 15, 1, -27, -17, -12, -26, 12, 11, -24, 9, -18, 18, 26, -5, -25, -29, -26, 17, -24, -22, 27, -2, 16, -7, -17, 15, -10, -24, -14, -19, -22, -1, -9, -30, -11, 20, -14, -5, 4, 20, 7, -2, 20, 26, 16, -13, -10, 3, -29, 13, 26, 14, -2, -13, 18, 28, 9, -11, 17, -28, -4, -23, -23, -7, -22, 11, 2, -24, -4, -11, 9, -23, 29, 9, -10, -17, -16, -11, 2, -28, 3, 12, -8, -16, -16, -25, 27, 21, -17, -5, 17, -17, -30, 2, -13, -14, -2, -15, -26, -12, 9, 12, -26, 19, 21, 10, -10, 9, -15, 5, -1, -14, 19, -18, -30, 15, -9, -19, -11, -20, 14, -9, 18, -19, -9, -18, 29, 14, -29, 11, -9, -7, -21, 12, -17, -11, -23, -8, 1, -1, -5, -22, -26, -18, 27, 6, -24, -27, 21, -25, -22, 17, 18, 28, 20, -7, 19, 6, -11, 14, 10, 6, -22, -4, 13, 5, 5, 3, -10, 0, -6, -29, 2, -22, 10, -26, 3, -23, 29, 28, 4, 0, -26, 13, -1, 4, -13, 25, 23, 27, -30, 5, -21, 26, -12, 4, 4, 23, 4, -27, 15, 5, 15, 11, -1, 0, -28, 8, -26, -22, 27, -3, 6, -19, -28, 27, 8, -13, -30, 3, 25, -9, 2, -5, 26, -2, 7, 11, -22, 26, -6, 8, 22, 24, 7, 8, 8, 28, -22, -12, 5, -2, 1, -8, -30, -20, 4, -17, 22, -6, -25, -4, 27, 20, 25, 8, 14, -26, 20, 3, 1, 18, -27, 3, 4, -20, 9, -30, 3, -26, -21, 0, -24, -20, -18, -28, -28, -18, -25, -14, -3, -15, 25, 3, -16, -24, -13, 13, -12, 27, -26, 9, 15, 23, 17, -14, -20, -2, 15, 0, 3, 6, 9, 26, 18, -11, 27, 19, 16, 3, 9, 7, -12, 15, 7, 26, 28, 1, -3, -19, 27, -27, -29, 8, 22, 9, -15, -3, -17, 25, 15, -16, 20, -28, 28, 22, 28, 16, -27, -21, -17, -17, 24, -10, -16, -27, -18, -25, -13, 25, 11, 28, -7, 7, 6, 23, -27, -19, 13, 25, -23, -14, -21, 4, -10, 0, -24, 26, 5, -6, 6, -27, 23, -30, 10, 19, -12, 10, 15, -5, -15, -2, 7, -1, -17, -14, 10, 29, -24, -7, 2, 21, -19, -8, -27, -3, 22, -5, -6, 8, 26, 10, -17, 12, -6, 9, 3, 7, -26, -26, 4, 6, 2, 23, 7, 13, -20, -19, 5, 3, 0, -10, -21, 25, -20, -20, -22, 6, -18, 19, 22, -13, -21, 17, 4, -22, 19, 6, 5, 25, -17, 6, 18, 19, 11, 23, 3, 6, 22, 24, -15, -27, -5, -12, -27, 14, -22, 26, -26, -11, -20, -7, 18, 19, 23, -25, 17, -27, 22, 22, -13, -23, -6, -18, 25, 7, -13, -24, -6, -1, 18, 13, -12, 3, 11, -20, 10, -13, 18, 25, -7, -8, -17, 17, -3, 5, 16, 23, 17, -18, 27, 26, -10, 20, 5, -11, 5, -29, 18, 29, 12, 2, -21, -11, -4, 12, -5, 24, 5, -20, 25, 9, 3, -8, 2, 19, 20, 24, -1, -3, -2, -27, 19, 24, 28, 13, 17, 16, 13, -12, -8, 5, -14, 21, -2, -25, 6, 9, -13, 1, -12, 26, -13, 15, -21, 13, 4, 16, 5, -24, 15, -14, 15, 14, -28, 21, 1, -8, 21, -25, -5, -23, -15, -18, -25, -24, 7, 25, -18, -22, 15, 4, -25, -17, -9, -1, 15, 6, 26, 22, 15, 17, -22, -2, 15, -28, -16, -14, -20, 17, -18, -4, 6, 17, -19, 7, 0, -3, -26, 15, 12, -5, -25, -21, 26, 17, 14, -28, 13, 13, 29, 2, 7, -12, 1, 28, -1, -20, -30, -15, 5, 25, -20, -18, -15, -25, -23, 24, 16, -2, -26, -22, 16, -20, -5, -20, 18, -28, -24, 7, -17, -12, -22, 17, 29, -8, 11, 25, -4, -26, -18, 20, -23, -29, 27, 27, 17, 20, 7, -11, -9, -26, -5, 5, -6, -16, -4, 13, 11, -6, -20, 19, -9, 8, 12, -15, 3, 25, -23, 0, -24, 6, -24, -23, -1, -5, 22, -29, 7, -20, -7, 18, -18, -18, 15, 17, -7, -12, 29, -12, -28, -11, -25, 28, 19, -16, -25, 23, -25, 8, -13, -18, -28, -17, -15, 6, -5, -27, 18, 15, -11, -30, 6, 23, 8, -4, 4, -14, -29, 12, 18, 11, 1, 12, 4, 24, 5, -14, -29, -4, -11, 4, 16, -30, -16, 23, -21, -19, 6, 26, 22, 19, -8, 27, -14, -8, -6, -30, -26, 27, -26, -28, -25, 8, 10, -4, -15, 0, 22, -20, -20, 10, -17, -11, 13, 9, 8, 24, -16, -16, -8, 25, 3, 22, -8, 24, -6, 9, -29, 20, -9, 24, -8, 23, -8, 22, -4, 15, 0, 19, 10, 27, 26, 23, 20, 15, 18, -22, 4, -18, -18, -30, 7, -21, 5, -12, 25, -9, -4, -30, -4, 20, -19, 22, 3, 18, 17, 8, -13, -17, 9, 7, 25, 11, -10, -27, -3, -17, 10, -30, -24, -29, -21, -2, -3, 2, -25, 26, -9, -12, 18, -17, 15, 20, 9, 21, -24, 5, 7, -28, 18, 8, -11, 16, -26, 3, 3, 6, -16, -12, 18, 4, -17, -19, 10, 22, -6, 20, 6, 28, 2, -15, 7, -20, 11, 3, -22, -20, -25, 28, 5, -11, -23, 20, 16, 23, -5, 5, 8, -23, 25, 6, 26, -7, -13, -2, -8, 29, 17, 20, -14, -15, 17, -20, -14, -27, 21, 29, -11, -20, 8, 19, -18, -1, 29, 5, 14, 23, 15, 7, 11, -15, 15, 10, 9, 16, 26, -8, -29, 7, 6, -9, -30, -6, 18, -2, -10, 18, -29, -1, -23, 24, 23, -15, -4, -3, -19, 22, 18, -27, -11, 14, 8, 4, -6, 10, -12, -10, 21, 7, -15, -21, 2, 12, 3, -30, -9, -25, 8, 19, 5, 12, -12, -15, -12, -9, 19, -7, 17, 0, 5, 17, -1, 22, 13, -27, 15, -28, -29, 23, -19, 13, -8, 23, 12, -13, -15, -18, -26, -22, -3, -7, 2, -4, 24, 2, 11, 21, -27, 26, 14, 13, 14, -30, 19, -22, -29, -1, -27, -4, 25, -14, -12, 4, -6, -18, -11, -8, -5, 29, 9, -11, 22, -10, 10, -8, 5, 12, -21, 27, -1, 28, -21, 15, 26, -16, 10, -17, 7, -24, 0, -20, -13, 3, 15, -19, -18, -8, -12, 20, 10, -8, 25, 26, -11, 23, 14, -1, -7, -22, -22, -16, -2, 19, -27, 5, 17, 28, 20, 17, -12, -13, -7, 22, 17, -8, -2, 28, 5, 29, -27, -15, -2, 26, -30, -6, -4, 16, 25, 5, -19, 1, -14, -6, 29, -13, 27, 20, 7, 10, 21, 12, 10, -12, -21, -10, -2, -18, -11, -15, 1, -11, 21, 6, 26, 20, -24, 29, 6, 26, -5, -18, -12, -16, -11, 11, -24, 4, 13, 15, -9, -3, 17, -16, 5, -17, -25, -30, -21, 15, -16, 27, -5, -4, -25, 28, 7, 17, 27, -18, -20, -9, 13, 3, -12, -16, -23, 19, -9, 10, 0, -22, -23, 10, -20, -4, 25, 28, -8, -20, 7, -1, -26, -12, 8, -22, 24, 21, -15, -26, -5, 10, 24, -27, -5, -1, -30, 29, 23, 28, -10, -27, -16, 13, -1, 12, -10, 13, 14, -30, -5, -25, 19, -19, 13, 26, 27, 3, 3, 28, 3, -9, 8, 6, 23, -2, -9, -26, 22, -2, 19, 12, -19, -15, 15, 9, -29, -24, 27, -1, -15, -17, 11, 11, -1, 14, -29, -19, 24, -29, -4, -15, -26, -21, 9, -1, -22, -17, -9, -28, -1, -29, 9, 25, 13, 14, -29, -23, -22, 1, -14, 26, -27, -14, 12, 13, 11, 1, 14, -1, 11, -14, -16, -3, 5, 2, -8, -12, 0, 17, -5, -6, -6, 25, -19, 21, 25, 12, 4, 21, -9, 8, -11, -30, 26, 19, 15, 20, 18, -13, 0, -30, 8, -16, -2, -17, 2, 17, -21, -25, 5, 26, 26, 23, -6, -28, 11, -16, 1, -5, 13, -14, 7, 0, -10, -30, -16, -29, -25, 12, -15, -9, -2, 15, 4, -18, 27, 19, -26, 4, -17, 18, -15, -24, 24, -17, -16, 19, -30, -20, 13, 20, 18, -14, -26, -22, 10, 23, 27, -28, 5, -6, -21, 26, -3, 10, 1, 26, -18, 9, 16, -6, 13, -29, 8, 6, -30, -1, 20, -30, 0, 23, 1, -23, 20, -25, -29, 29, 29, 21, -13, -5, 3, -16, -18, 24, 7, 27, -27, -11, -21, 14, 10, 0, 15, 26, -9, 23, -13, -6, 22, -9, -9, -6, -7, -25, 6, -7, 19, 22, -24, 28, 29, 4, 16, 28, 23, 0, -3, 21, -1, 3, -25, -19, -19, 17, -22, 9, 28, -11, 28, -4, -3, -25, 21, -23, -30, 10, 25, -18, 10, 17, -15, 27, 19, 3, 18, -30, 29, 6, -26, 10, 27, 21, 1, -26, -20, -10, -6, 26, -3, -13, 0, -2, 22, 4, -28, -8, -26, -29, 8, -12, -13, 29, 4, 3, 3, -12, -7, 28, 26, -29, 28, -20, -15, -19, 26, 26, -27, 14, -5, -6, 21, -28, 15, -30, -20, -26, -7, -26, 27, 24, -9, -10, -21, 26, -5, -16, 0, 23, -3, -20, -5, 15, -10, -4, -2, 16, 17, -17, -3, -22, -27, 25, 28, -26, -6, -14, -8, -19, -24, -8, 12, -26, -13, -7, 10, 29, -7, -10, -30, 13, 15, 21, -1, 5, 7, 1, 8, 7, -2, -13, 15, -19, 15, 23, 10, 20, 28, 22, -2, -1, 25, -22, 9, -22, 3, -8, -5, 10, 18, -7, 2, 4, -1, -4, -17, 29, 29, 29, -27, -16, -18, -14, -3, -12, 19, -9, -1, -2, -14, 16, -15, 7, -4, 24, -5, -14, -29, -21, -21, 12, 17, 20, -10, -3, -16, 19, 7, -28, -22, -30, -28, -3, -23, 11, 8, 14, 11, 19, 24, -12, -25, 10, 2, -13, 9, 10, -12, -8, 20, -14, 14, 8, 24, -28, 0, 1, 14, -28, 2, -6, 4, -19, -19, -28, 21, -3, 15, -28, 25, -27, 8, 25, -29, -17, 9, -21, -20, -21, 6, -22, -6, -30, -13, -27, 25, 21, 26, 6, -19, -1, 29, -30, -23, 29, 12, -5, -8, -25, 19, 18, -1, 25, -9, 3, 15, 0, -2, 28, -19, -24, -17, 26, -12, 17, 23, 7, 21, -25, 2, 6, 10, 18, -4, 21, -14, -8, -27, 24, 26, -2, 20, -29, -14, 13, 16, 21, -26, -9, -20, 9, -5, -7, 13, -26, 2, -30, 13, -12, 12, -27, 27, -9, -19, 7, -9, -2, -5, -16, 29, 25, 26, 0, 6, 27, -22, -1, -22, -1, 13, -10, 15, -29, 24, 14, 27, -28, -16, 10, 3, 9, -22, -8, -22, -25, -7, -3, 5, 26, -28, 14, 15, 28, 4, 4, 20, -5, -13, 20, -30, 5, -25, -23, -11, -14, -14, 14, 21, 3, -25, -21, 19, -19, 11, -28, 9, -4, -30, -3, -18, -8, -15, -6, -10, -17, -23, -2, 22, -1, -11, 28, 9, 3, -20, -6, 8, 5, 14, 26, 24, -22, -17, -24, -15, -10, 19, 13, -10, -8, 21, -7, 12, -19, 25, 16, 4, -7, 28, 23, -30, -2, 4, 27, 8, 13, -23, 3, 24, -15, -20, 10, 2, 11, 7, 21, -2, 20, -30, 19, 11, 5, 5, -29, 21, 28, -18, 19, -28, 29, 9, -18, -26, -12, 12, -15, -6, -13, 29, 23, 7, -23, -19, -30, -11, -11, -25, 19, -26, -28, -28, 25, -2, 29, 6, 3, -19, -18, 27, 20, 23, 25, -27, 27, -30, -25, 28, 13, -25, -30, 1, -14, -9, -15, 27, 2, 28, 28, -20, 8, 1, -19, -8, -4, 6, 10, -11, 27, -18, -9, 27, 7, -1, -12, -16, 3, -28, -8, -22, 20, -5, -16, 16, 17, 20, -29, 22, -3, -1, -5, -11, 18, 2, -12, 8, 4, 15, -14, 5, 25, 17, -18, -17, -12, -10, 18, -7, 8, -30, -22, -28, -10, -30, 14, -5, -9, 16, -24, -16, 0, 2, 4, -14, 9, -2, 1, -6, -7, 10, -20, -1, 0, 25, 27, -24, 3, -10, 27, -8, 12, 8, 6, 16, -14, -24, 4, 5, 12, -7, -9, 8, 3, 9, 10, -8, 24, 12, -13, 8, 10, -23, 4, 10, 16, 20, 7, 8, -29, -11, -29, 21, 23, 20, 23, 12, -26, -14, 10, -2, 21, -29, 5, 18, 10, -27, -11, -22, -25, 1, 14, -12, 1, -26, -11, -13, -2, 7, 10, -24, -15, -26, 1, 13, 23, 8, -26, 29, 8, -13, -11, -21, 5, -25, 13, -7, 20, 28, 5, 25, 22, -23, 7, -21, 4, -8, 9, -24, 13, 22, 19, 24, -27, 2, 23, 28, -22, 0, 14, 3, -27, -1, -17, 27, 12, -19, 13, 3, 23, 0, -26, 28, -15, 0, 2, -11, 4, -26, 3, 8, -15, -12, 2, -12, -25, 15, 4, 4, 11, -18, 9, 6, 5, 26, -11, -22, 6, 17, -23, -14, -7, -24, -28, -25, -3, -15, 18, 10, -20, 15, -17, -16, 11, 22, 13, 4, 6, -10, -12, 28, 15, 0, 19, -30, -5, 8, 16, -23, 4, -18, 10, -1, -25, -8, -21, -13, 5, -19, -8, -6, 6, 0, 13, 7, 17, 12, -3, -17, -21, 16, -17, -3, 13, 10, -27, -1, -16, 9, 18, -1, 5, -19, 11, 14, -12, -3, -1, -16, 22, -9, 19, -11, 28, -14, -19, 2, 22, 9, 9, 23, 22, 0, 1, 21, 5, -3, 10, -3, -8, -6, 13, 25, -19, 26, 9, -29, -26, 13, -28, 20, -2, 20, 12, 6, 3, 22, -13, -29, -5, -22, -2, -14, -17, -2, 7, 24, 27, 17, -21, 7, -21, 9, 19, 26, -28, 8, -20, -26, -9, 22, -2, 1, -9, -28, 26, 15, -13, -29, -25, -11, -23, 2, 15, 6, -14, -18, -9, -4, -17, -30, -12, 7, -19, -8, 14, -29, -17, 0, -5, -29, 4, 14, 25, -29, 4, -6, 18, 10, 7, 0, -19, 21, 29, 2, 21, 17, -26, 16, 22, -24, 18, 19, -4, 19, 29, -6, 0, 23, -23, 17, 18, -30, 4, 23, 17, 17, 14, -5, -9, -19, 4, 23, 9, -14, 23, 18, 19, 4, 20, 17, 24, 13, 11, -3, -16, 29, 9, 11, 23, 26, -18, 24, 7, 19, 13, -20, 14, 11, -4, 19, 6, 22, -2, 8, -5, -15, 29, 14, 23, -8, 16, -21, 29, 5, 15, 16, 3, 15, -25, 27, -23, -11, 15, 17, -29, -27, 13, 13, -11, 6, 18, 9, -2, 26, -11, -15, 11, 5, 17, -3, 25, 11, 6, -20, -19, 8, -7, -9, -27, 22, -21, -25, -28, -5, -17, -24, -28, 26, -3, 11, -28, 21, -16, -18, 4, -15, 29, 7, 5, -26, 22, -12, 14, 14, 21, -25, 29, -27, -4, -29, 24, 10, 27, 29, -5, 21, -22, -4, -6, -28, 1, -24, -4, 25, 11, -26, 16, -13, -11, 19, -15, 17, -4, 10, -11, 16, -18, -8, -21, -8, -13, -9, 5, -5, -7, -29, -7, 22, -23, -26, 12, 13, 17, -18, 14, 1, 25, 28, 17, 20, 15, -12, 11, 5, -28, -28, 3, 11, 17, 23, -20, 1, 23, -4, 23, 13, -26, 0, -12, 22, 18, -19, -1, -29, -12, -4, -8, 9, -27, -11, -9, 4, -11, 2, -8, -17, -27, -10, 0, 18, -14, 21, -11, -18, 22, -18, -13, 12, -22, 28, 27, -30, 23, -22, -2, -17, -16, -2, -21, 2, -4, 9, 23, -13, -25, -7, 6, -22, 7, -29, -21, 28, 1, -4, -12, -12, -25, -11, -8, 19, -27, -5, -14, -15, -24, 1, -30, 29, 3, 24, 8, -25, -8, 7, 5, 4, -13, 1, 2, -30, -6, 9, 17, -13, -11, -26, 11, -15, -5, -4, 12, -28, -10, -6, -16, 8, 23, 5, 27, 29, 5, 6, -23, 8, 16, 16, 0, -23, 11, 27, 25, 4, 15, 17, -19, -27, -17, -18, 24, 8, 16, 11, 3, -27, -5, -29, -21, 2, -22, -13, -17, 19, -20, 24, -28, -30, 0, 0, 9, -16, 12, -11, 9, 7, -7, 10, -21, -28, -13, 20, -7, 22, -4, -24, 14, 12, -2, 0, -10, -21, 12, -1, 13, 10, -14, -17, 3, -19, 13, -10, 3, -13, 10, 13, 7, -8, -12, -30, 12, -18, -11, 24, -12, -6, -2, -19, -16, 19, 3, -12, -19, 20, 6, -28, 27, 28, 12, -30, 0, 28, -30, -21, -17, -8, 25, 10, 16, -10, -11, 10, -24, 4, 13, -30, 3, -28, 23, -5, -18, -25, 12, -1, 16, 12, -14, 3, 29, 8, -30, 21, 5, -29, -21, -25, -28, -8, 20, 12, -22, -27, 11, -11, 14, 22, 2, 7, -16, 21, -2, -23, 20, -28, 3, 29, -5, -20, -22, 20, -16, -7, 24, -16, 20, 18, 0, -15, -29, -17, 5, -21, 7, -30, 22, 28, -29, 28, 21, 10, -19, -7, 27, 4, 1, -2, 5, -26, -14, 15, 26, -13, 20, -20, -23, -5, 0, 18, 2, 2, 19, 29, 22, -20, -27, 20, -14, -13, -5, -10, 26, -10, -7, -22, -6, -12, 29, 9, -14, -1, -7, 25, 8, -25, 12, -14, -1, 22, 24, -29, -16, -3, 9, 26, 28, 29, -10, 24, -28, 9, 16, -29, -16, 13, 7, 6, 0, -12, -3, -27, -30, 18, 4, -13, -14, -12, 20, 1, 12, -10, -6, -4, -22, 11, -24, -26, 22, -4, 4, 21, -17, 27, 5, 5, 5, 14, -23, -7, 24, -19, 17, -6, 0, 17, 15, -28, 7, 28, -30, -30, 24, 10, 1, -3, 1, 20, 5, 12, 26, 12, -3, 19, 7, 1, -24, -5, 7, -2, 10, -26, -26, 7, 16, 4, 2, 27, -2, 17, -9, 13, -5, -15, -23, 5, -8, 15, 24, -12, -5, 2, -6, -23, -24, -25, 29, 22, -15, -16, -21, 3, 5, -7, 10, -3, -13, -26, -10, 24, 9, 9, -17, -5, 5, -26, 13, -15, 5, -3, -5, 10, 3, 23, 3, -21, 4, 25, 19, -25, -15, -15, -15, 3, 8, -5, 25, -4, -23, 10, 29, 24, 1, 24, 6, -17, 4, 17, 5, -14, -13, -1, -30, -5, 21, -2, -28, 10, -9, 7, -25, 15, 12, 3, 0, 16, 22, 19, 2, -4, -21, -22, -2, -12, 28, 15, 12, -27, 27, -11, 29, -10, 22, 26, -26, -30, 16, 0, 7, -5, 4, 7, -19, -24, -3, 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10, -10, -9, -19, -26, 27, 3, -5, -12, 11, -5, 18, -2, 4, 18, 12, -19, 7, -15, -10, 7, 26, -10, -10, -24, 14, 11, -12, -15, -19, -30, -29, 12, -6, 2, -16, -19, 0, -16, 16, -21, -14, 23, -1, -5, -4, 22, 22, 24, 19, 5, 2, 29, -13, 19, 3, -29, 14, 12, 27, 24, 21, 9, 25, -26, -9, 13, 22, -5, -6, 15, -17, 3, 27, -18, 29, -8, -10, -22, -7, -14, -6, 0, 24, 24, 3, -22, -1, -15, 21, 0, 25, 4, -18, -9, 10, -16, 17, -16, 21, 12, -30, -22, 6, -8, -18, -27, -27, 28, -9, -2, -30, 21, 5, 1, 5, 11, -25, 9, -6, -17, 17, 8, -29, 10, 0, -25, 19, -30, -3, -12, -4, 27, -29, -1, 22, 23, -21, 10, 29, 28, 2, -6, 12, -9, 22, -12, -5, -17, -25, -11, 28, 3, -15, -21, 20, 13, -10, -12, 1, 28, 25, -16, -5, -7, -22, 15, 26, -14, -10, -24, 27, -24, -24, 14, -11, 7, -6, -10, 8, 4, -2, -26, -7, 7, 20, -7, -12, 11, -7, 0, 1, 19, -2, -15, 19, -10, 23, 10, -4, 3, 7, 0, 23, -20, -7, -14, 3, 9, -6, -2, 28, 26, 29, 8, 4, 25, 4, 23, -24, 17, 0, -15, -6, 29, 25, -6, 19, -15, -11, -20, -6, 13, -9, 17, 7, -9, 4, 18, -25, 25, -20, -3, 5, 0, 3, 7, -14, 23, 0, 9, -26, -30, 28, 24, -10, 0, -28, -21, -13, 23, -28, -3, -19, -12, -20, -24, 9, 21, 21, -26, 29, 12, 21, -18, -19, 7, 1, -1, -21, 4, -12, 22, 24, 20, 12, 9, 7, 11, -16, -27, 11, -16, -7, 12, -19, -16, -29, 28, 24, -4, 9, 21, 8, -16, -2, 18, -9, -22, -2, 24, -1, 17, 15, -18, 26, -16, -27, 24, -9, 26, 18, 3, -12, -21, -20, -13, 25, -3, 16, -3, -7, 18, -4, 25, -22, -9, 25, -21, -9, -18, -13, 1, 17, 20, 19, 25, -22, 9, -10, 1, 2, 13, -12, 1, -3, -3, 16, 28, 15, 0, -4, -12, -30, 8, 1, -24, 5, 28, 24, -20, -2, 3, -1, 0, -22, 14, 27, 8, 2, -12, -28, 12, -18, 17, 0, 16, -14, -10, 22, -19, 1, -13, -7, -12, 25, 13, 21, -13, -6, -5, -19, 18, -13, -28, -1, -13, 22, 20, 7, -9, -15, -11, -17, -27, 5, 21, 28, 20, 12, 25, 25, 4, -12, 28, 17, -14, -2, -6, -25, 15, 29, 8, -10, -5, 6, -9, -29, -29, 25, 9, -17, 1, -4, -29, 18, 23, 4, -20, 14, 4, 18, -13, 6, -13, 19, -6, 10, 21, -17, -5, -16, 26, -27, 3, 21, -21, 28, 25, -26, -28, 23, -11, 15, 10, -27, 19, -27, -12, -17, 0, -24, 8, 8, -24, 0, 12, 4, -27, -3, -7, -26, 15, -29, -27, -25, 25, 20, 5, -29, -23, 0, 27, 23, 0, -1, -2, 6, -7, 13, 6, 10, 28, 24, 8, -14, -9, -8, 24, -3, -11, -1, 27, 6, -29, 17, 0, 19, 9, -11, -7, -26, -27, 10, 26, -6, -10, -1, -14, 19, 28, 22, 19, 8, 20, -3, 5, 13, 21, -7, -21, -25, 2, -26, -17, 28, 7, 25, -1, 9, -14, -6, -24, 26, -30, 4, 26, -4, 20, -21, -22, 6, 17, -17, 21, -25, -23, 18, -13, 16, 29, 8, -27, -26, 9, -16, 15, -30, -2, -16, -7, 29, -2, 2, -3, 5, -21, 13, 10, 5, 4, 15, -19, 9, -24, 28, 17, 9, 21, -19, -3, -1, 17, 24, 5, -14, -23, -8, -19, -10, -7, 25, 4, -6, 24, -12, -19, 17, -11, 26, 8, -16, 28, -29, 27, 15, 20, 22, 15, 11, 26, 9, -21, 3, -6, -22, -23, 14, 2}, -52, 2, 289392},
	{[]int{-2, 5, -1}, -2, 2, 3},
	{[]int{}, -2, 2, 0},
	// 可以有多个 testcase
}

func Test_countRangeSum(t *testing.T) {
	ast := assert.New(t)

	for _, tc := range tcs {
		fmt.Printf("~~%v~~\n", tc)
		ast.Equal(tc.ans, countRangeSum(tc.nums, tc.lower, tc.upper), "输入:%v", tc)
	}
}

func Benchmark_countRangeSum(b *testing.B) {
	for i := 0; i < b.N; i++ {
		for _, tc := range tcs {
			countRangeSum(tc.nums, tc.lower, tc.upper)
		}
	}
}