dnbaker

// You must have #included <chrono> and <cstdio>

#define TIME_CODE(code, name) do                                                       \
{                                                                                      \
    using namespace std::chrono;                                                                 \
    const auto i(system_clock::now());                                                 \
    { code }                                                                           \
    const auto j(system_clock::now());                                                 \
    std::fprintf(stderr, "Task %s took %lfs\n", name, duration<double>(j - i).count());\
} while(0)

dnbaker

/*
  For any 1<k<=64, let mask=(1<<k)-1. hash_64() is a bijection on [0,1<<k), which means
  hash_64(x, mask)==hash_64(y, mask) if and only if x==y. hash_64i() is the inversion of
  hash_64(): hash_64i(hash_64(x, mask), mask) == hash_64(hash_64i(x, mask), mask) == x.
*/

// Thomas Wang's integer hash functions. See <https://gist.github.com/lh3/59882d6b96166dfc3d8d> for a snapshot.
uint64_t hash_64(uint64_t key, uint64_t mask)
{
	key = (~key + (key << 21)) & mask; // key = (key << 21) - key - 1;

dnbaker

% (C) Mathieu Blondel, July 2010

\documentclass[a4paper,10pt]{article}

\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\usepackage[ansinew]{inputenc}

\usepackage{lmodern}
\usepackage{amsmath}

dnbaker

% (C) Mathieu Blondel, July 2010

\documentclass[a4paper,10pt]{article}

\usepackage[english]{babel}
\usepackage[T1]{fontenc}
\usepackage[ansinew]{inputenc}

\usepackage{lmodern}
\usepackage{amsmath}

dnbaker

It's hard to quarrel with that ancient justification of the free press: "America's right to know." It seems almost cruel to ask, ingeniously, "America's right to know what, please? Science? Mathematics? Economics? Foreign languages?"

None of those things, of course. In fact, one might well suppose that the popular feeling is that Americans are a lot better off without any of that tripe.

There is a cult of ignorance in the United States, and there always has been. The strain of anti-intellectualism has been a constant thread winding its way throughout political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."

Politicians have routinely striven to speak the language of Shakespeare and Milton as ungrammaticaly as possible in order to avoid offending their audiences by appearing to have gone to school. Thus, Adlai Stevenson, who incautiously allowed intelligence and learning and wit to peep out of his speeches, found the American people

dnbaker

#!/usr/bin/env python
import pickle

emoji_dict = {
    '\xf0\x9f\x98\x81': 'grinning face with smiling eyes',
    '\xf0\x9f\x98\x82': 'face with tears of joy',
    '\xf0\x9f\x98\x83': 'smiling face with open mouth',
    '\xf0\x9f\x98\x84': 'smiling face with open mouth and smiling eyes',
    '\xf0\x9f\x98\x85': 'smiling face with open mouth and cold sweat',
    '\xf0\x9f\x98\x86': 'smiling face with open mouth and tightly-closed eyes',

dnbaker

#include <cstdio>
#include <cstring>
#include <string>
#include "unistd.h"
 
#ifndef _BUF_SZ__
#define _BUF_SZ__ 1 << 16
#endif
 
int main(int argc, char *argv[]) {

dnbaker

#ifndef _PRN_VECTOR_H__
#define _PRN_VECTOR_H__

template<typename RNG>
struct UnchangedRNGDistribution {
    auto operator()(RNG &rng) const {return rng();}
    void reset() {} // For interface compatibility with generators with internal state.
};

template<typename RNG=std::mt19937_64, typename Distribution=UnchangedRNGDistribution<RNG>>

dnbaker

#include <cassert>
#include <fstream>

struct cdata {
    uint64_t data;
    unsigned count;
    cdata() {reset();}
    void reset() {data = count = 0;}
    template<typename T>
    void write(T &stream, size_t nbytes=sizeof(data) / sizeof(char)) {

dnbaker

#include <stdio.h>
int main() {
    int i, c;
    while((c = getc_unlocked(stdin)) != EOF)
        for(i = 0; i < 3; fputc("ACGT"[(c >> (i++ << 1)) & 3], stdout));
}