Tcs Coding — Questions 2021

def max_subarray_sum(arr): max_sum = float('-inf') current_sum = 0

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

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

Example: Input - [1, 2, 3, 4, 5], target sum - 7, Output - 2

Given an array of integers, find the maximum sum of a subarray.

# 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) Output - 6 print(max_subarray_sum([-2

print(find_middle_element(head)) # Output: 3

return None

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

return slow.data

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 target sum - 7

Example: Input - "madam", Output - True