<doocs>1893.Check if All the Integers in a Range Are Covered_1.py
def isCovered( ranges: List[List[int]], left: int, right: int) -> bool:
    diff = [0] * 52
    for l, r in ranges:
        diff[l] += 1
        diff[r + 1] -= 1
    cur = 0
    for i, df in enumerate(diff):
        cur += df
        if left <= i <= right and cur == 0:
            return False
    return True
def sample_funcname ( var_0 : List [ List [ int ] ] , var_3 : int , var_4 : int ) -> bool :
    var_8 = [ 0 ] * 52
    for var_9 , var_10 in var_0 :
        var_8 [ var_9 ] += 1
        var_8 [ var_10 + 1 ] -= 1
    var_12 = 0
    for var_14 , var_15 in enumerate ( var_8 ) :
        var_12 += var_15
        if var_3 <= var_14 <= var_4 and var_12 == 0 :
            return False
    return True
