Submission #299279

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
299279	2020-09-14 16:00:57	dolphingarlic	Acrobat (balkan16_acrobat)	C++14	100 / 100	362 ms	42960 KiB

main

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#include <bits/stdc++.h>
using namespace std;
int a[300001], b[300001], cmp[600001];
bool cnt[300001], visited[300001];
vector<pair<int, int>> graph[300001];
vector<array<int, 3>> ans;
int find(int A) {
    while (A != cmp[A]) A = cmp[A], cmp[A] = cmp[cmp[A]];
    return A;
}
void onion(int A, int B) { cmp[find(A)] = find(B); }
bool dfs(int node) {
    visited[node] = true;
    for (pair<int, int> i : graph[node]) {
        if (!visited[i.first] && dfs(i.first)) {
            ans.push_back({1, a[i.second], b[i.second]});
            swap(a[i.second], b[i.second]);
            cnt[node] ^= 1;
        }
    }
    return cnt[node];
}
int main() {
    iostream::sync_with_stdio(false);
    cin.tie(0);
 
 
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Compilation message (stderr)

main.cpp: In function 'int main()':
main.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |     for (int i = 0; i < odd.size(); i += 2) ans.push_back({2, odd[i], odd[i + 1]});
      |                     ~~^~~~~~~~~~~~

• Subtask 1: 30 / 30
• Subtask 2: 35 / 35
• Subtask 3: 35 / 35