Tcs Coding Questions 2021 -

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

return slow.data

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

for char in s: if char_count[char] == 1: return char Tcs Coding Questions 2021

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

Example: Input - [-2, 1, -3, 4, -1, 2, 1, -5, 4], Output - 6

Example: Input - [1, 2, 3, 4, 5], target sum - 7, Output - 2 class Node: def __init__(self, data): self

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

print(count_pairs_with_sum([1, 2, 3, 4, 5], 7)) # Output: 2

for num in arr: complement = target_sum - num if complement in seen: count += 1 seen.add(num) class Node: def __init__(self

Example: Input - "aabbc", Output - "c"

Given a linked list, find the middle element.

return max_sum

print(first_non_repeating_char("aabbc")) # Output: "c"

# Create a sample linked list: 1 -> 2 -> 3 -> 4 -> 5 head = Node(1) head.next = Node(2) head.next.next = Node(3) head.next.next.next = Node(4) head.next.next.next.next = Node(5)