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pzread /
Last active Aug 29, 2015
Judge Sketch


The package is compressed in tar.xz format without top directory.


  pkgid string      //Add by add_pkg API
  apiid string      //Add by add_pkg API, owner id
  when int64        //Add by add_pkg API
View upload.js
'url':'/judge/api/' + api_key + '/add_pkg',
var xhr = new XMLHttpRequest();
View somethingwrong.c
int loop(int x){
unsigned long a;
unsigned long *ptr;
ptr = &a;
if(x == 0){
return 0;
import re
import requests
from bs4 import BeautifulSoup
def to_bom_utf8(name):
data = open(name, 'rb').read().decode('utf-8')
open(name, 'wb').write(data.encode('utf-8-sig'))
View check.cpp
int main() {
char str[100];
char ans[100];
FILE *ansf = fdopen(2, "r");
while(fgets(str, sizeof(str), stdin) != NULL) {
if(fgets(ans, sizeof(ans), ansf) == NULL) {
pzread / userscript.js
Last active Apr 21, 2017
Mastodon Blocked Contents Loader
View userscript.js
// ==UserScript==
// @name Mastodon Blocked Contents Loader
// @namespace
// @version 0.1
// @description shows how to use babel compiler
// @author PZ Read
// @require
// @require
// @match https://*/*
// ==/UserScript==
View test2.js
var objs = [];
var bases = [];
let oris = [];
let payloads = [];
for (let i = 0; i < 2; i++) {
bases.push([0, 1]);
oris.push([100, 100, 100]);
use std::collections::HashMap;
use std::mem;
struct Link {
pub value: String,
next: *const Link,
impl Link {
fn new(value: String, next: *const Self) -> Self {
View init.vim
set ai
set backspace=2
set cin
set et
set hidden
set mouse=
set nocompatible
set nu
set shiftwidth=2
set softtabstop=2

天衣無縫 ~ Fantastic Seamless Textile ~

When executing a ELF binary, Linux kernel will pass the memory address of PHDR(program header) to userspace by AT_PHDR entry of AUXV. interpreter will parse the PHDR structure at memory addressAT_PHDR and resolve more ELF structures, such as dynamic section.

But Linux kernel wrongly calculate the PHDR address in memory.

NEW_AUX_ENT(AT_PHDR, load_addr + exec->e_phoff);
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