longbuilder

#ifndef BUBBLE_SORT_H_
#define BUBBLE_SORT_H_ 

template <typename T>
void swap(T &a, T &b) 
{
    T tmp = a;
    a = b;
    b = tmp;
}

longbuilder

#ifndef FAST_IN_H_
#define FAST_IN_H_

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#define INPUT_BLOCK_SIZE 4096 * 512

class FastInput

longbuilder

int main(int argc, char *argv[])
{
    int sockfd = socket(AF_INET, SOCK_STREAM, 0); 
    if (sockfd < 0) {
        perror("new socket error");
        exit(-1);
    }   

    struct sockaddr_in servaddr;
    bzero(&servaddr, sizeof(servaddr));

longbuilder

string truncateUTF8(const string& src, size_t tolen)
{
    string dst;
    dst.reserve(tolen);
    size_t i = 0;
    while (dst.size() < tolen && i < src.size())
    {   
        size_t step = 0;
        if ((src[i] & 0x80) == 0x00)              // 1字节
            step = 1;