In Python, lambda functions allow for more concise and readable code by defining simple, one-time-use functions without the need for a full def statement.

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import sys

input = lambda: sys.stdin.readline().rstrip("\r\n")

sint = lambda: int(input())

mint = lambda: map(int, input().split())

aint = lambda: list(map(int, input().split()))

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Here’s what each does:

input: reads input and removes extra characters. sint: reads a string and converts it into an integer. mint: returns an iterator with integers from the input string. aint: returns a list of integers. These concise functions save time, simplify code, and are especially useful in programming competitions.