pebble8888

package main

import (
    "fmt"
    "os"
    "encoding/binary"
    "math"
)

import (

pebble8888

%matplotlib inline 
import numpy as np
import matplotlib.pyplot as plt

class Point:
    def __init__(self, x, y):
        self.x = x
        self.y = y
    
    def desc(self):

pebble8888

from math import *
from fractions import Fraction
from sys import *

def twice(x, y):
    x2 = (x*x*x*x-16*x)/(4*x*x*x+8)
    y2 = sqrt_frac(x2*x2*x2+2)
    return x2, y2

def sqrt_frac(x):

pebble8888

def isprime(n):
    if n == 2:
        return True
    if n == 3:
        return True
    if n % 2 == 0:
        return False
    if n % 3 == 0:
        return False
    i = 5

pebble8888

lsof |grep XXX|wc -l

pebble8888

#include <iostream>
#include <thread>
#include <memory>
#include <vector>
#include <atomic>

using namespace std;

struct T {
    T(){

pebble8888

#include <stdio.h>
#include <assert.h>

int main(int argc, const char * argv[]) {
    FILE* fp = fopen("/tmp/a.log", "w");
    for (int i = 0; i < 512; ++i){
        FILE* dummp_fp = fopen("/tmp/a.out", "r");
        if (dummp_fp == nullptr){
            char buf[256];
            sprintf(buf, "i[%d]\n", i);

pebble8888

#include <cstdlib>

template <class T>
struct MyAllocator {
    using value_type = T;
    
    // default constractor
    // copy constractor
    // move constractor
    MyAllocator()

pebble8888

        if let stream:InputStream = InputStream(fileAtPath: "/Users/pebble8888/hoge.txt") {
            var buf:[UInt8] = [UInt8](repeating: 0, count: 16)
            stream.open()
            while true {
                let len = stream.read(&buf, maxLength: buf.count) 
                print("len \(len)")
                for i in 0..<len {
                    print(String(format:"%02x ", buf[i]), terminator: "")
                }
                if len < buf.count {

pebble8888

let a = try JSONSerialization.data(withJSONObject: ["alpha":["beta":"あいう", "gamma":"えおか"]], options: [])
let b = try JSONSerialization.jsonObject(with: a, options: [])
print("\(debugDescriptionUTF8(dic:b))")

let c = try JSONSerialization.data(withJSONObject: ["alpha":["さしす", "せそた"]], options: [])
let d = try JSONSerialization.jsonObject(with: c, options: [])
print("\(debugDescriptionUTF8(dic:d))")

func debugDescriptionUTF8(dic:Any) -> String {
    guard let dic = dic as? [String:Any] else {