Lumimyrsky

input/code.cpp: In function 'int main()':
input/code.cpp:5:19: error: 'n' was not declared in this scope
    5 |     vector<int> a(n), b(n);
      |                   ^

#include <bits/stdc++.h>
using namespace std;
 
int main() {
    vector<int> a(n), b(n);
    for (int &i:a) cin >> i;
    for (int &i:b) cin >> i;
    int A = 0, B = 0, preva = a[0], prevb = b[0];
    for (int i = 1; i < 10; ++i) {
        A += (a[i] > preva) * (a[i]-preva);
        B += (b[i] > prevb) * (b[i]-prevb);
        preva = a[i];
        prevb = b[i];
    }
    cout << (A < B ? 1 : 2) << '\n';
}