문제
풀이
#include <iostream>
#include <vector>
using namespace std;
void solve(void) {
int n; cin >> n;
vector<vector<int>> v(2*n-1, vector<int>(n));
for (int i=0; i<2*n-1; i++) for (int j=0; j<n-1+(i&1); j++) cin >> v[i][j];
cout << 2*n-2 << " " << 2*n-3;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
solve();
return 0;
}