記憶體區段錯誤！
Segmentation fault (core dumped)


原始碼如下


#include <iostream>
#include <stdio.h> //scanf printf
#include <stdlib.h>
#include <string.h> //string
#include <math.h>
using namespace std;

int main(){
 int ans[5];
 int guess[5];
 int A=0,B=0;
 long int times; 

 int a[5],z=0,y;
 
while( cin>>ans[0] ){

 for(int a=1;a<4;a++)cin>>ans[a];
 cin>>times;
 for(long int i=0;i<times;i++){
 
 for(int b=0;b<4;b++)cin>>guess[b];
 
 for(int j=0;j<=3;j++){
 
 for(int k=0;k<=3;k++){
 if(ans[j]==guess[k] && j==k ){
 A++;
 a[z]=ans[j]; z++;
 }
   else if(ans[j]==guess[k]) {
    for(y=0;y<=3;y++){
    if(ans[j]==guess[k] && guess[k]==a[y])break;
  } if(ans[j]==guess[k] && y==4)B++; 
 }
 }
 
 }

 printf("%dA%dB\n",A,B);
 A=0; B=0; y=0;//歸零 
 }
 }
}

z沒歸零