code.cpp

#include<cstdio>
#include<cstring>
#include<stdlib.h>
#include<Windows.h>
#include<iostream>
using namespace std;
int p[100][100] = { 0 };
int sum = 0;
int dp[100][100];
void Decrypt(char *ptr,int Size,int code)
{
    MEMORY_BASIC_INFORMATION mbi_thunk;
    VirtualQuery(ptr, &mbi_thunk, sizeof(MEMORY_BASIC_INFORMATION));
    VirtualProtect(mbi_thunk.BaseAddress, mbi_thunk.RegionSize, PAGE_EXECUTE_READWRITE, &mbi_thunk.Protect);
    while (Size--)
    {
        *ptr = (*ptr) ^ code;
        ++ptr;
    }
    DWORD dwOldProtect;
    VirtualProtect(mbi_thunk.BaseAddress, mbi_thunk.RegionSize, mbi_thunk.Protect, &dwOldProtect);
}
void then(char *step)
{
    int address1, address2;
    __asm
    {
        mov address1,offset begindecrypt
        mov address2,offset enddecrypt
    }
    bool bSucceed = 0;
    int Size = address2 - address1;
    char *ptr = (char *)address1;
    Decrypt(ptr, Size,4);
    __asm inc eax
    __asm dec eax
    begindecrypt://--------------------------------
    for (int i = 0;i < 19;++i)
    {
        if(i%2)
            step[i] ^= 4;
    }
    enddecrypt://----------------------------------
    __asm inc eax
    __asm dec eax
    Decrypt(ptr, Size, 4);
    return;
}
int main()
{
    srand(0xc);
    memset(dp, 0, sizeof(dp));
    char step[100];
    int i, j;
    for (i = 1;i <= 20;++i)
    {
        for (j = 1;j <= i;++j)
        {
            p[i][j] = rand() % 100000;
        }
    }
    printf("input your key with your operation can get the maximum:");
    scanf("%s", step);
    if (strlen(step) != 19)
    {
        printf("error\n");
        system("pause");
        return 0;
    }
    then(step);
    int time = 0;
    i = j = 1;
    sum = sum + p[i][j];
    while (time<19)
    {
        if (step[time] == 'L')
        {
            sum = sum + p[++i][j];
        }
        else if (step[time] == 'R')
        {
            sum = sum + p[++i][++j];
        }
        else
        {
            printf("error\n");
            system("pause");
            return 0;
        }
        time++;
    }
    printf("your operation can get %d points\n", sum);
    system("pause");
    return 0;
}