SDE - 1

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

A. 120 metres
B. 180 metres
C. 324 metres
D. 150 metres

The sum of ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?

A. 4 years
B. 8 years
C. 10 years
D. None of these

Statements: The old order changed yielding place to new.

Conclusions:

Change is the law of nature.
Discard old ideas because they are old.
A. Only conclusion I follows
B. Only conclusion II follows
C. Either I or II follows
D. Neither I nor II follows
E. Both I and II follow

Given a string input of length n, find the length of the longest substring without repeating characters i.e return a substring that does not have any repeating characters.

Substring is the continuous sub-part of the string formed by removing zero or more characters from both ends.

There are two friends Ranbir and Alia. Ranbir gave a question to Alia that you are given ‘Q’ queries in the form [N, P].

For each query, Alia has to count how many arrays consisting of positive integers of size ‘N’ she could build such that the product of all the array elements is equal to ‘P’.

Since the answer could be large, return the answer to each query modulo 10^9 + 7.

You are given an array 'ARR' consisting of 'N' integers. You need to rearrange the array elements such that all negative numbers appear before all positive numbers.

Note:

The order of elements in the resulting array is not important.

Example:

Let the array be [1, 2, -3, 4, -4, -5]. On rearranging the array such that all negative numbers appear before all positive numbers we get the resulting array [-3, -5, -4, 2, 4, 1].

He asked general questions from python like "difference between sets and lists"

You are given an array/list ‘BINARYNUMS’ that consists of ‘N’ distinct strings which represent all integers from 0 to N in binary representation except one integer. This integer between 0 to ‘N’ whose binary representation is not present in list ‘BINARYNUMS’ is called ‘Missing Integer’.

Your task is to find the binary representation of that ‘Missing Integer’. You should return a string that represents this ‘Missing Integer’ in binary without leading zeros.

Note

1. There will be no leading zeros in any string in the list ‘BINARYNUMS’.

Example:

Consider N = 5 and the list ‘binaryNums’=  [“0”, “01”, “010”, “100”, “101”].  This list consists of the binary representation of numbers [0, 1, 2, 4, 5]. Clearly, the missing number is 3 and its binary representation will be “11”. So you should return string “11”.

It was just like a normal conversation between two professionals.
She asked me to introduce myself.
What i aspire to become in future?
She asked my 5 characteristics .