SDE - 1

Given a point on the perimeter of the circle and an interior point. Find the probability that the rectangle formed with diagonal as the line segment joining these points lies inside the circle.

My wife and I recently attended a party at which there were four other married couples. Various handshakes took place. No one shook hands with oneself, nor with one's spouse, and no one shook hands with the same person more than once. After all the handshakes were over, I asked each person, including my wife, how many hands he (or she) had shaken. To my surprise, each gave a different answer. How many hands did my wife shake?

Design a job scheduler. Tasks will be given as inputs with an extra parameter ‘delay’.That meaning the task has to run after this ‘delay’ time.

Given an integer array(ARR) of size N, the following operations need to be performed:

update(l, r, val) : Add (val + i) to arr[l + i] where, 0 <= i <= r - l.

rangeSum(l, r): return the sum of all elements in the array from index l to r, i.e., the sum of array arr[l...r].

Two type of queries denote these operations:

Type 1: for update(l, r, val) operation.
Type 2: for rangeSum(l, r) operation.

Note: (1 based indexing) for the queries.

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