Panda theidexisted

使用STL算法的好处在于，写得熟练的情况下可以快速写出正确的代码，手写循环总有几率忽略边界情况导致出错而且编码速度比较慢。STL算法的缺陷在于数量比较少也不够灵活，有时不能以最高的效率完成算法逻辑。下面这个代码虽然效率差了点，作为原型使用还是挺不错的.

// https://leetcode.com/problems/valid-palindrome/
class Solution {
 public:
  bool isPalindrome(string s) {
    s.erase(std::remove_if(std::begin(s), std::end(s), [](char ch) {
      return !isalnum(ch);
    }), std::end(s));
 return std::equal(

	// Example program
	#include <iostream>
	#include <string>
	#include <cstdio>

	#include <iostream>
	#include <algorithm>
	#include <vector>
	#include <memory>
	#include <functional>

	void foo(int argc, const char* argv[]) {
	while (argc--)
	std::cout << *argv++ << ' ';
	}

	int main()
	{
	std::vector<std::string> vec {"1", "2", "3", "4"};
	std::vector<const char*> vecptr;
	std::transform(std::begin(vec), std::end(vec), std::back_inserter(vecptr),

	#include <iostream>

	class Base {
	public:
	virtual void DoCall() { std::cout << "base docall" << std::endl; }
	void Display() { DoCall(); }
	};

	class Derived : public Base {
	public:

	#include <vector>
	#include <iostream>

	static int gCounter = 0;
	class Foo {
	public:
	Foo(int n = 0)
	:pval_(new int(n)) {
	index_ = gCounter++;
	}

	CC = g++
	BINDIR = ./bin
	CFLAGS = -c -g -O0 -std=c++11 -I../include
	LDFLAGS =
	SOURCES = $(wildcard *.cc)
	OBJECTS = $(SOURCES:.cc=.o)
	FAKEOBJECTS = $(OBJECTS)
	EXECUTABLE = $(addprefix $(BINDIR)/, $(basename $(SOURCES:.cpp=)))

	.PHONY: all

	! function() {
	function t(t, n) {
	function i(t) {
	var e, n = null;
	try {
	e = t.createRequest(), e ? t.sendRequest(e) \|\| (n = r("sendRequest failed.", e, t.getVersion(), t.getVersionParamName(), t.at_script)) : n = r("createRequest failed.", e, t.getVersion(), t.getVersionParamName(), t.at_script)
	} catch (i) {
	n = r(i.name + ": " + i.message, e, t.getVersion(), t.getVersionParamName(), t ? t.at_script : null, i)
	}
	return n

	//
	// async_client.cpp
	// ~~~~~~~~~~~~~~~~
	//
	// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
	//
	// Distributed under the Boost Software License, Version 1.0. (See accompanying
	// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
	//

	project(echo_server CXX)
	cmake_minimum_required(VERSION 2.8)

	file(GLOB SRC_FILES ${PROJECT_SOURCE_DIR}/*.cpp)
	set(CMAKE_CXX_FLAGS_DEBUG "-DDEBUG -g -O0 -Wall -std=c++11")
	set(CMAKE_CXX_FLAGS "-O2 -Wall -std=c++11")

	add_executable(echo_server
	${SRC_FILES}
	)