Submission #1108832

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1108832	2024-11-05 10:05:22	siewjh	Keys (IOI21_keys)	C++17	100 / 100	510 ms	67628 KiB

keys

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 300005;
int keya[MAXN], p[MAXN], recj[MAXN], minv, rnd;
bool dead[MAXN], hask[MAXN], vis[MAXN];
vector<pair<int, int>> adj[MAXN];
vector<int> ansl, ks, pro;
int root(int x){
  if (p[x] == -1) return x;
  else return p[x] = root(p[x]);
}
void join(int ra, int rb){
  p[ra] = rb;
}
void clear(){
  for (int x : ks) hask[x] = 0;
  for (int x : pro) vis[x] = 0; 
  ks.clear(); pro.clear();
}
void search(int st){
  clear();
  queue<int> q; map<int, vector<int>> lckm;
  q.push(st);
  while (!q.empty()){
    int x = q.front(); q.pop();
    int rx = root(x);
    if (rx == st){
      if (vis[x]) continue;
      pro.push_back(x); vis[x] = 1;
      if (!hask[keya[x]]){
 
 
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Compilation message (stderr)

keys.cpp: In function 'void search(int)':
keys.cpp:47:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |  if (pro.size() < minv){
      |      ~~~~~~~~~~~^~~~~~
keys.cpp:52:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   52 |  else if (pro.size() == minv){
      |           ~~~~~~~~~~~^~~~~~~

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