Tcs Coding Questions 2021 -

Example: Input - 1 -> 2 -> 3 -> 4 -> 5, Output - 3

Given an array of integers and a target sum, count the number of pairs with that sum.

print(first_non_repeating_char("aabbc")) # Output: "c" Tcs Coding Questions 2021

class Node: def __init__(self, data): self.data = data self.next = None

print(max_subarray_sum([-2, 1, -3, 4, -1, 2, 1, -5, 4])) # Output: 6 Example: Input - 1 -> 2 -> 3

def count_pairs_with_sum(arr, target_sum): count = 0 seen = set()

Example: Input - "madam", Output - True

def first_non_repeating_char(s): char_count = {} for char in s: if char in char_count: char_count[char] += 1 else: char_count[char] = 1

return None

Given a string, find the first non-repeating character in it.