Data structure ( C++ ). I want to ask If my answer for this question is correct or not ?

1. Write a program that finds the difference between two long numbers presented in tabular representation; (8 points)

#include using namespace std; int i, n, m, k, a[200000], b[200000], c[20001]; int main () { cin>>n>>m; for(i=0; i>a[i]; for(i=0; i>b[i]; for(i=0; i=0; i--) cout<