After inserting massive program exits. What's wrong here

Question

#include <iostream>

using namespace std;

int main()
{
int n,i,j;
double y[50],x[50];
cout <<"n=";
cin >> n;
for(i = 0; i < n; i++)
{
cout<<"x["<<i+1<<"]"<<endl;
cin >> x[i];
}

j = -1;

for(i = 0; i <j; i++)
{
if(x[i]!=0)
{
j++;
y[i] = x[i];
}
}

if(j != -1){
for (i = 0; i <j; i++)
{
cout<<"y["<<i+1<<"]="<<y[i]<<endl;
}
}
}

Answer 1

i). when you run the code in sololearn app, you need to provide exact 6 inputs at the beginning, i hope you're doing that right.
ii). in the second for loop, value of 'i' is 0, and 'j' is -1, so it'll never enters the loop, so value of 'j' will never increment and results in the last if condition will be false everytime because 'j' is still -1.

Answer 2

Thanks))