Debug small error

[programnick]

I have this code that I a suppose to debug. I am not sure what is the problem I am facing. Please help and advice.
#include <iostream>
#include <cstring>

using namespace std;

int main(){
char *x="23489";
char *y="99";
int *z;
int c=0;
int n=strlen(x);
int n2=strlen(y);
z = new int[n+1];

if(n>=n2) {

for(int i=1; i<=n2;i++) {
if((x[n-i]-48)+(y[n2-i]-48)>=10) {
z[n+1-i]=((x[n-i]-48)+(y[n2-i]-48)+c)%10;
c=1;
}
else {
z[n+1-i]=(x[n-i]-48)+(y[n2-i]-48)+c;
c=0;
if(z[n+1-i]>=10) {
z[n+1-i]%=10;
c = 1;
}
}
}
if(n==n2) {
z[0]=c;
}
else {
z[n-n2]=(x[n-n2-1]-48)+c;
c=0;
if(z[n-n2]>=10) {
z[n-n2]%=10;
c = 1;
}
for(int i=1; i<n-n2; i++) {
z[n-n2-i]=(x[n-n2-1-i]-48)+c;
c=0;
}
z[0]+=c;
}
for(int i=0; i<n+1; i++)
cout << z[i] << endl;
}
}

[kbw]

You could start by looking at those arrays. Check if they're being accessed outside of their range.

[Thomas1965]

You have to tell us what the problem is first, then we might be able to tell you where the problem is and how to fix it.

Does it compile?
Does it crash ?
Wrong output?
No output?