← All problemsSign in

N Boy and Sum

For Turbo C++ Users : Read the following document before attempting the question : Switching from Turbo to GNU Problem Description First question is easy to set you up with the online judge. You are given a number 'N'. You need to find the sum of first N terms of the series: 1 - 2 + 3 - 4 + 5 - 6 ... Input First line contains T, the number of test cases. Each test case contains the number N on

HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
🔒
L5 Full solution
L5 unlocks only if you insist twice
solution.cppC++17

CodeSearch Tutor

Hints, not spoilers — it won’t hand over the full solution unless you insist.

voice by Sarvam AI

Sign in to chat with the tutor and save your progress.

Sign in to start