Submission #941455

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
941455	2024-03-09 01:06:40	Mike_Vu	Race (IOI11_race)	C++14	100 / 100	218 ms	53324 KiB

race

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#include<bits/stdc++.h>
using namespace std;
const int MAX = 1e6 + 5;
const int inf = 1e9;
int n, k, res = inf, sz[MAX], min_length[MAX];
bool deleted[MAX];
vector<int> undo_length;
vector<pair<int, int>> adj[MAX];
stack<pair<int, int>> updates;
int get_size(int u, int pre){
    sz[u] = 1;
    for(auto [v, w] : adj[u]) if(v != pre and !deleted[v]){
        sz[u] += get_size(v, u);
    }
    return sz[u];
}
int find_centroid(int u, int pre, int target){
    for(auto [v, w] : adj[u]) if(v != pre and !deleted[v] and sz[v] * 2 > target){
        return find_centroid(v, u, target);
    }
    return u;
}
void compute(int u, int pre, int len, int sum){
    if(sum > k) return;
 
 
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Compilation message (stderr)

race.cpp: In function 'int get_size(int, int)':
race.cpp:16:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   16 |     for(auto [v, w] : adj[u]) if(v != pre and !deleted[v]){
      |              ^
race.cpp: In function 'int find_centroid(int, int, int)':
race.cpp:23:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   23 |     for(auto [v, w] : adj[u]) if(v != pre and !deleted[v] and sz[v] * 2 > target){
      |              ^
race.cpp: In function 'void compute(int, int, int, int)':
race.cpp:33:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   33 |     for(auto [v, w] : adj[u]) if(v != pre and !deleted[v]){
      |              ^
race.cpp: In function 'void decompose(int)':
race.cpp:43:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   43 |     for(auto [v, w] : adj[c]) if(!deleted[v]){
      |              ^
race.cpp:54:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   54 |     for(auto [v, w] : adj[c]) if(!deleted[v]){
      |              ^

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57