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foreign fn randGen(min: Int, max: Int) Int;

fn abs(x: Int) Int {
    if x < 0 {
        return -x;
    }
    return x;
}

fn fabs(x: Float) Float {
    if x < 0.0 {
        return -x;
    }
    return x;
}

fn max(x: Int, y: Int) Int {
    if x > y {
        return x;
    }
    return y;
}

fn min(x: Int, y: Int) Int {
    if x < y {
        return x;
    }
    return y;
}

fn fmax(x: Float, y: Float) Float {
    if x > y {
        return x;
    }
    return y;
}

fn fmin(x: Float, y: Float) Float {
    if x < y {
        return x;
    }
    return y;
}

fn pow(x: Float, y: Float) Float {
    var power: Float = x;
    while y > 1.0 {
        x = power*x;
	y = y-1.0;
    }
    return x;
}

#fn floor(x: Float) Int {
#    return x - fabs(x % 1);
#}

#fn ceil(x: Float) Int {
#    if x < 0.0 {
#        return floor(x) - 1;
#    }
#    return floor(x) + 1;
#}

#fn round(x: Float) Float {
#    if fabs(x % 1.0) >= 0.5 {
#        return ceil(x);
#    }
#    return floor(x);
#}