phamtm

#include <iostream>
#include <algorithm>
using namespace std;

/* print the fractions of denominator <= n between n1/d1 and n2/d2 */
void genfrac(int n, int n1, int d1, int n2, int d2) {
	if (d1 + d2 > n) return;
	genfrac(n, n1, d1, n1 + n2, d1 + d2);
	cout << n1 + n2 << "/" << d1 + d2 << "\n";
	genfrac(n, n1 + n2, d1 + d2, n2, d2);

phamtm

# Bash colors #
###############
txtblk='\e[0;30m' # Black - Regular
txtred='\e[0;31m' # Red
txtgrn='\e[0;32m' # Green
txtylw='\e[0;33m' # Yellow
txtblu='\e[0;34m' # Blue
txtpur='\e[0;35m' # Purple
txtcyn='\e[0;36m' # Cyan
txtwht='\e[0;37m' # White

phamtm

public class SudokuSolver {
  int[] board = new int[81];
  char[] in = null;

  boolean[][] findLimits() {
    boolean[][] ok = new boolean[81][9];
    for (int i = 0; i < 81; i++) {
      for (int j = 0; j < 9; j++) {
        ok[i][j] = true;
      }

phamtm

# -*- coding: utf-8 -*-
import codecs
import cPickle as pickle
import os
import re
import string


PUNCTUATIONS = string.punctuation + u'“' + u'”' + u'…'
PATTERN_D_REPLACE = re.compile(r'Đ', flags=re.UNICODE)

phamtm

!#/bin/bash
# 7000-7001/tcp, 7199/tcp, 9042/tcp, 9160/tcp
docker run --name c33 -p 7000:7000 -p 7001:7001 -p 7199:7199 -p 9042:9042 -p 9160:9160 -d cassandra:3.3

phamtm

def swap(ar, i, j):
    tmp = ar[i]
    ar[i] = ar[j]
    ar[j] = tmp


def genheapperm(ar, n):
    if n == 1:
        print ar
        return

phamtm

Promise implementation

• Only the original promise (created with new) can control when it will resolve/reject (callee decide)

• Each subsequent promise (subscriber) created with then will either resolve when the onFulfilled and onRejected return OR if no handler resolve with the same value as the parent

• A promise should NEVER be resolved with another promise.

Who wait for whom?

phamtm

#include <sys/type.h>
#include <unistd.h>

void* malloc(size_t size) {
  void *p;
  p = sbrk(0);  // Initially, `break` is positioned at start of heap

  if (sbrk(size) == (void*) -1)
    return NULL;
  

phamtm

package mp;

import java.util.ArrayDeque;
import java.util.Deque;


public class ToPostfix {
    /**
     * Don't handle error
     * missing: escape char