package main


func a() bool {
    s := []int{8,8}
    s[1] -= 9
    k := s[1] == -1
    return k
}

func f2() {
    var j int
    var s = []int{10, 20}
    var s2 = []int{100, 200}
    for _, v := range s {
        j += v
        for _, v2 := range s2{
            j += v2
            for _, v := range s {
                j += v
            }
        }
    }
    assert(j == 750)
}


func slice_slice() {
    s := []int{1,2,3,4}
    s1 := s[:1]
    assert(len(s1) == 1)
    assert(cap(s1) == 4)

    s2 := s[1:]
    assert(len(s2) == 3)
    assert(cap(s2) == 3)

    s3 := s[1:2:2]
    assert(s3[0] == 2)
    assert(len(s3) == 1)
    assert(cap(s3) == 1)
}



func main() {
    var s1 = [][]int{{0},{99},{2}}
    var s2 = []int{0,100,2}
    i := s1[1][0] + s2[1] - 1
    s2[0] = 8
    j := s2[0]
    assert(i == 198)
    assert(j == 8)
    assert(a())

    f2()

    slice_slice()
}