爹爹爹爹爸爸爸爸爸爸爸

#include<iostream>
using namespace std;
int h, w;
int sum = 0;
int dp(int *num[], int i, int j) {
if (i == h - 1 && j == w - 1)return 1;
if (num[i][j + 1] == 0 && j + 1 < w) {
sum+=dp(num, i, j + 1);
}
if (num[i + 1][j] == 0 && i + 1 < h) {
sum+=dp(num, i + 1, j);
}
if (num[i - 1][j] == 0 && i - 1 > 0) {
sum+=dp(num, i - 1, j);
}
if (num[i][j - 1] == 0 && j - 1 > 0) {
sum+=dp(num, i, j - 1);
}return 0;
}
int main()
{
int n;
cin >>h>>w>>n;
int x, y;
int** num = new int* [1000];
for(int i=0;i<1000;i++){
num[i]=new int [1000];
}
for (int i = 0; i < 1000; i++) {
for (int j = 0; j < 1000; j++) {
num[i][j] = 0;
}
}
//int num[1000][1000]={0};
for (int i = 0; i < n; i++) {
cin >> x >> y;
num[x-1][y-1] = 1;
}
if (num[0][0] == 1) {
cout << 0; return 0;
}
sum=dp(num,0,0);
cout<<sum;
for (int i = 0; i < 1000; ++i) {
delete[] num[i]; // 释放每个指针指向的内存
}
delete[] num; // 释放指针数组
return 0;
}
运行之后打了五个数子，就报错了，我不懂