Submission #966683

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
966683	2024-04-20 08:15:01	biximo	Designated Cities (JOI19_designated_cities)	C++17	100 / 100	1040 ms	43660 KiB

designated_cities

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#include <bits/stdc++.h>
#define N 200005
#define INF 1000000000000000000LL
using namespace std;
typedef long long ll;
bool vs[N];
struct P {
  int to, cto, cfr;
};
vector<P> adj[N];
int tree_sz[N];
void sz_DFS(int c, int pr) {
  tree_sz[c] = 1;
  for(auto&i: adj[c]) {
    if(vs[i.to] || i.to == pr) continue;
    sz_DFS(i.to, c);
    tree_sz[c] += tree_sz[i.to];
  }
}
int find_cent(int c, int pr, int sz) {
  for(auto&i: adj[c]) {
    if(i.to == pr || vs[i.to] || tree_sz[i.to]*2 < sz) continue;
     return find_cent(i.to, c, sz);
  }
  return c;
}
vector<ll> vals[N];
priority_queue<ll> pq1, pq2;
ll initVal, ans[N];
ll update_DFS(int c, int pr) {
 
 
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Compilation message (stderr)

designated_cities.cpp: In function 'll update_DFS(int, int)':
designated_cities.cpp:41:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for(int i = 0; i < vals[c].size()-1; i ++) {
      |                 ~~^~~~~~~~~~~~~~~~~~
designated_cities.cpp:55:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |   for(int i = 0; i < vals[c].size()-1; i ++) {
      |                  ~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 6 / 6
• Subtask 2: 7 / 7
• Subtask 3: 9 / 9
• Subtask 4: 17 / 17
• Subtask 5: 17 / 17
• Subtask 6: 44 / 44