g++编译成功，运行提示Segmentation fault (core dumped)

Question

g++编译成功，运行提示Segmentation fault (core dumped) vs可以正常运行，为什么呢

#include
#include
#include
#include
using namespace std;

int *move(int a,int b)
{
int *p;
p[0]=a+1;
p[1]=b+2;

return p;

}

int main()
{

int *a=move(2,3);

getchar();
return 0;
}

Answer 1

正确写法就是 int p = (int)malloc(2*sizeof(int));