c++ - Runtime error occurs while accessing elements of vector container -

in below mentioned program converting integer vector, number checked divisibility each element of vector. however, while accessing vector elements check divisibility of elements number, runtime error occurs.

#include <iostream> #include <algorithm> #include<vector> using namespace std;  int main(){ int testcase; cin>>testcase;  //number of testcases inputted while(testcase--) { int number,i=0,count=0; cin >>number;                //number inputted int p=number; vector<int> arr(100);       while(number){            //converting integer array     arr[i]=number%10;      number=number/10;     cout<<arr[i];     if(p%arr[i]==0) //checking whether each element of array divisible number //this gives runtime error     count++;     i++; }    cout<<endl<<count<<endl; //printing count of elemnts of array  divisible number   }  return 0;  } 

i have commented out if condition giving runtime error(without if condition, program runs correctly). can please tell me how can corrected? in advance.

in condition

if(p%arr[i]==0) 

arr[i] can equal 0.

thus if number contains 0 program fail.