This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
void just_do_it();
int main() {
#ifdef KAMIRULEZ
freopen("kamirulez.inp", "r", stdin);
freopen("kamirulez.out", "w", stdout);
#endif
ios_base::sync_with_stdio(0);
cin.tie(0);
just_do_it();
return 0;
}
const int maxN = 2e5 + 20;
int a[maxN * 2];
int N, R, K;
void just_do_it() {
cin >> N >> R >> K;
for (int i = 1; i <= N * 2 - 1; i++) {
cin >> a[i];
}
if (N == 1) {
cout << 1;
return;
}
if (K == 1) {
cout << N;
return;
}
if (K == N * 2) {
cout << 2;
return;
}
assert(false);
}
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