Hi Guys, my submission 77409380 for this 1181D - Irrigation is getting TLE'd. Can anyone help me in finding my mistake.

Find a pair in an array with maximum bitwise OR? $$$1 \leq n \leq 1e6, 0 \leq a[i] \leq 1e6$$$

Can anyone help me with the solution or finding a blog somewhere.

Hi guys, I never really wrapped my head around floating point precision standards(in the view of competitive programming). Can you guys suggest me a book or course for me to read for a c++ beginner?

Whomever are willing, comment their wannabe color and the time before they are gonna achieve it.

Note: Post the color you are actually practicing for past days. Please don't just spam red.

Is there any plugin that hides number of submissions in contests BUT SORTS THE PROBLEMS BASED ON SUBMISSIONS? During contests If I see number of submissions I either lose confidence or get over confident, so I just want to see the order in which I need to solve.

Can anyone tell me where can I find good list of adhoc competitive programming problems? I want to practice problems which doesn't contain textbook algorithms.

There are approximately 35 mid heroes in dota 2. You are given a matrix winprob[35][35], where winprob[i][j] denotes the probability of ith hero winning against jth hero in midlane (matrix is derived from previously played games).
Problem : What's the minimum cardinal subset of heroes (to learn) such that when the opponent picks a mid hero, we can always pick a hero from our subset and get the probability of winning atleast (60%).

I can only think of bruteforce. Is there any better algorithm?

Are Ladders still consistent with their corresponding ratings?

In this submission for the problem 31660028 the author used if(ans[ni][nj] < ans[v.fi][v.se] + 1) break; condition. Can anyone guide me in proving that this algorithm with the break condition produces shortest paths and its complexity is O(n*m).

Problem Link: https://mirror.codeforces.com/problemset/problem/877/D