OJ Board

Who can give advice to me?

-------------------------------------------------------------------------------------

/*
No. 10252 Common Permutation
*/

#include <iostream>
#include <string>

using namespace std;

void quick_sort (char a[], int n)
{
char v, t;
int i, j;
if (n > 1)
{
v = a[n-1 ...

Please help

thanks in advance



#include <iostream>
#include <math.h>
using namespace std;

#define MAX 1000

class Node
{
public:
double money_exchange;


Node *next;
Node *prev;
};

int compare(const void *arg1, const void *arg2)
{
int p1, p2;
p1 = *(int*)arg1;
p2 = *(int*)arg2;
return ...