3_14_3(Segmentation_fault_4)

http://download.youkuaiyun.com/detail/doublewei1/4140866

#include<stdio.h>
#include<stdlib.h>
#define K 1024
int main(){
 int *a;
 a=malloc(sizeof(int));
 *a=100;
 printf("%d\n",*a);
 free(a);
 printf("%d\n",*a);
}