P6.20 X06314 Similar sequences (2)

#include <iostream>
using namespace std;


void info_sequence(int& sum, int& last) {
        sum = sum + last;
}

int main() {
        int n, sum, sum0, last, last0, count = 1;
        sum = 0;
        while (cin >> n && n != 0) {
                last = n;
                info_sequence(sum, last);
        }
        last0 = last;
        sum0 = sum;
        while (cin >> n && n!= 0) {
                last = n;
                sum = n;
                while (cin >> n && n != 0) {
                        last = n;
                        info_sequence(sum, last);
                }
                if (sum0 == sum && last == last0) ++count;
                sum = 0;
                last = 0;
        }
        cout << count << endl;
}