一个小游戏

在迷宫中找出几个数之和是7的数并把它们吃掉后再吃掉7就获胜了。（编得简单了点，但这是我编的第一个游戏请多指教）

#define UP 0x4800
#define DOWN 0x5000
#define LEFT 0x4b00
#define RIGHT 0x4d00
#include "conio.h"
#include "time.h"
#include "stdlib.h"
int k[17][24]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
               0,1,0,0,0,0,0,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,0,
               0,1,1,1,1,1,1,0,0,0,0,0,0,1,0,0,0,0,0,1,1,1,0,0,
               0,1,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,
               0,3,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,0,0,
               0,1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,0,0,0,0,0,0,0,0,
         &n