Submission #957452

#	Time	Username	Problem	Language	Result	Execution time	Memory
957452		Turkhuu	가장 긴 여행 (IOI23_longesttrip)	C++17	Compilation error	0 ms	0 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> longest_trip(int N, int D) {
    if (D > 1) {
        deque<int> a;
        if (are_connected({0}, {1})) {
            a = {0, 1};
            if (are_connected({0}, {2})) {
                a.push_front(2);
            } else {
                a.push_back(2);
            }
        } else {
            a = {0, 2, 1};
        }
        for (int i = 3; i < N; i++) {
            if (are_connected({a.front()}, {i})) {
                a.push_front(i);
            } else {
                a.push_back(i);
            }
        }
        return vector(a.begin(), a.end());
    }
    vector<int> a{0}, b{1};
    for (int i = 2; i < N; i++) {
        if (are_connected({i}, {a.back()})) {
            a.push_back(i);
        } else if (are_connected({i}, {b.back()})) {
            b.push_back(i);
        } else {
            a.insert(a.end(), b.rbegin(), b.rend());
            b = {i};
        }
    }
    if (!are_connected(a, b)) {
        return a.size() > b.size() ? a : b;
    }
    int i, lo, hi;
    lo = 0, hi = a.size() - 1;
    while (lo < hi) {
        int mi = (lo + hi) / 2;
        are_connected(vector(a.begin(), a.begin() + mi + 1), b) ? hi = mi : lo = mi + 1;
    }
    i = lo, lo = 0, hi = b.size() - 1;
    while (lo < hi) {
        int mi = (lo + hi) / 2;
        are_connected(vector(b.begin(), b.begin() + mi + 1), {a[i]}) ? hi = mi : lo = mi + 1;
    }
    assert(a.size() == 1 || are_connected({a.front()}, {a.back()}));
    assert(b.size() == 1 || are_connected({b.front()}, {b.back()}));
    assert(are_connected({a[i]}, {b[lo}));
    vector<int> ans;
    ans.insert(ans.end(), a.begin() + i + 1, a.end());
    ans.insert(ans.end(), a.begin(), a.begin() + i + 1);
    ans.insert(ans.end(), b.begin() + lo, b.end());
    ans.insert(ans.end(), b.begin(), b.begin() + lo);
    return ans;
}

Compilation message (stderr)

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from longesttrip.cpp:2:
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:53:39: error: expected ']' before '}' token
   53 |     assert(are_connected({a[i]}, {b[lo}));
      |                                       ^