#include <bits/stdc++.h> using namespace std; #define pb push_back #define mp make_pair #define mt make_tuple #define int long long using ii = pair<int, int>; using iii = tuple<int, int, int>; int N, Q, X[200005]; main() { ios::sync_with_stdio(0); cin.tie(0); cin >> N; for (int i = 1; i <= N; i++) { cin >> X[i]; } cin >> Q; for (int S; Q--; ) { cin >> S; set<int> T; for (int i = 1; i <= N; i++) { T.insert(X[i]); } int cur = 0, chng = 0; bool dir = 0; for (int i = 1; i <= N; i++) { auto it = T.lower_bound(S); int x = (int)-1e16, y = (int)1e16; if (it != T.end()) { y = *it; } if (it != T.begin()) { --it; x = *it; ++it; } cur += min(S - x, y - S); if (S - x <= y - S) { if (dir == 1) chng++; dir = 0; T.erase(x); S = x; } else { if (dir == 0) chng++; dir = 1; T.erase(y); S = y; } } cout << cur << '\n'; assert(chng <= 60); } }

travel.cpp:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   14 | main() {
      | ^~~~