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Functional backtracking: eight queens

A Pen by Sergiu Buciuc on CodePen.

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Functional backtracking: coin combinations amounting to sum

A Pen by Sergiu Buciuc on CodePen.

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Backtracking engine using ES6 generators

A Pen by Sergiu Buciuc on CodePen.

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import React from 'react'
import ReactDOM from 'react-dom'
import d3 from 'd3'

class Chart extends React.Component {
  render() {
    let style = {width: this.props.width, height: this.props.height}
    return <svg style={style}>
      {this.props.children}
    </svg>

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atom

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package main

import (
    "fmt"
    "sync"
)

type Fetcher interface {
    // Fetch returns the body of URL and
    // a slice of URLs found on that page.

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package main

import (
    "code.google.com/p/go-tour/tree"
    "fmt"
)

// Walk walks the tree t sending all values
// from the tree to the channel ch.
func Walk(t *tree.Tree, ch chan int) {

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package main

import (
    "fmt"
    "sync"
    "time"
)

func main() {
  var wg sync.WaitGroup

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var Lazy = require("lazy"),
    Q = require("q"),
    fs  = require("fs");

// elevationsFileName is the name of a file containing one float value per line
var readElevations = function(elevationsFileName) {
    var deferred = Q.defer(),
        elevations = [];

    new Lazy(fs.createReadStream(elevationsFileName))