Submission #436966

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
436966	2021-06-25 12:01:41	BrunoPloumhans	Keys (IOI21_keys)	C++17	37 / 100	2586 ms	25712 KiB

keys

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#include <vector>
#include <bits/stdc++.h>
using namespace std;
int n;
vector<int> r;
vector<int> cnts;
vector<int> ans;
int min_count = 1e9;
struct edge {
    int k;
    int v;
};
vector<vector<edge>> adj;
void compute_cnt(int start) {
    unordered_set<int> vis;
    unordered_set<int> collected_keys;
    queue<int> to_visit {{ start }};
    unordered_map<int, vector<int>> next_unlocked;
    while (!to_visit.empty()) {
        int u = to_visit.front(); to_visit.pop();
        if (vis.count(u) > 0) continue;
        vis.insert(u);
        if (collected_keys.insert(r[u]).second) {
            for (int v : next_unlocked[r[u]]) {
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

keys.cpp: In function 'std::vector<int> find_reachable(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
keys.cpp:53:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |     for (int i = 0; i < u.size(); ++i) {
      |                     ~~^~~~~~~~~~
keys.cpp:58:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |     for (int i = 0; i < r.size(); ++i) {
      |                     ~~^~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 0 / 30
• Subtask 5: 0 / 33