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v.erase(std::remove_if(v.begin(), v.end(), predicate), v.end());

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bool is_zero(int i)
{
  return i == 0;
}

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v.erase(std::remove_if(v.begin(), v.end(), is_zero), v.end());

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struct HASH {
  size_t operator()(const std::pair<int,int> &p) const {
    return ~p.first ^ p.second; // the first is negated to differentiate between mirrored pairs
  }
};

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std::unordered_map< std::pair<int,int>, int, HASH > hash_table;

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Fixes for errors encountered when running games in linux

This is a rolling gist. If you want to contribute please add your error and fix in the comments.

libfreetype error

Error message

error while loading shared libraries: libfreetype.so.6: cannot open shared object file: No such file or directory

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AlgoExpert

Arrays

Two Number Sum

https://leetcode.com/problems/two-sum/

Binary Search Trees

Closest Value in BST

https://leetcode.com/problems/closest-binary-search-tree-value/

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GSoC 2021 Final Report

Utilize second order derivatives from Clad in ROOT

Student: Baidyanath Kundu

Mentors: Vassil Vassilev, Ioana Ifrim

Organisation: CERN-HSF

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#!/usr/bin/env python3
from math import exp
import jax.numpy as jnp
import jax.random as jrn
import jax.profiler as jpr
import random
from jax import grad, vmap
from typing import List

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1. Disable Secure Boot.

2. Assuming that you have a bootable USB stick with PopOS, boot from it and install PopOS. I 've installed PopOS on the external drive.

3. Install reEFInd.

sudo add-apt-repository ppa:rodsmith/refind