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// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

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def number_needed(a, b):
    dictA = {}
    dictB = {}
    
    for c in a:
        if c in dictA:
            dictA[c] += 1
        else:
            dictA[c] = 1
    for c in b:

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# Definition for an interval.
# class Interval(object):
#     def __init__(self, s=0, e=0):
#         self.start = s
#         self.end = e

class Solution(object):
    def merge(self, intervals):
        """
        :type intervals: List[Interval]

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#!/bin/python

import sys



def isCavity(grid, coordinate):
    (r, c) = coordinate
    value = grid[r][c]
    maxRow = len(grid) - 1

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Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

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render() { // render method of component
//...
<div className="column-icons">
    { canHideColumns && renderHideColumnsTrigger() }
    { canSort && renderSortingIndicator() } // shows the sort icon
    { canSearch && renderSearchTrigger() } // shows the filter icon
    { canRemoveColumns && <RemoveColumnButton /> }
    { canAddColumns && <AddColumnButton }
</div>
//...

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// (contents of stylus)
ColumnIconsMargin = 6
ColumnIconsSize = 26
TotalColumnIconsWidth = 5 * (ColumnIconsSize + ColumnIconsMargin)
.column-icons
    // ...
    width TotalColumnIconsWidth
    // ...

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render() {
// ...
    <div
        className={
            classNames(
                "column-name-text",
                { "column-name-pointer": canRenameColumns }
            )
        }
        style={{ maxWidth: `${maxWidth}px` }}

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//(contents of the React component, simplified)
render() { // render method of component
// ...
// count the number of truthy booleans
const numberOfButtons = [canAddColumns, canHideColumns, canRemoveColumns, canSearch, canSort].reduce(
        (acc, showButton) => showButton ? acc+1 : acc,
        0
    )
<div className={
    classNames(

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render() { // render method of component
// ...
<div className={`column-icons-${numberOfButtons}`}
    { canHideColumns && renderHideColumnsTrigger() }
    { canSort && renderSortingIndicator() }
    { canSearch && renderSearchTrigger() }
    { canRemoveColumns && <RemoveColumnButton /> }
    { canAddColumns && <AddColumnButton }
</div>
// ...