【刷题】LeetCode解题技巧

class Solution:
    def run(self):
        pass
    def stdin(self):
        a = int(input())
        array = list(map(int,input().split()))
        self.run()

T = int(input())
ins = Solution()
while T>0:
    ins.stdin()
    T-=1

class Solution:
    def run(self):
        pass
    def stdin(self):
        pass

with open(r"2.in", 'r') as file:
    sys.stdin = file
    s1 = Solution()
    T = int(input())
    while T>0:
        s1.stdin()
        T-=1