Submission #87180

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
87180	2018-11-29 22:26:40	nikolapesic2802	Zagrade (COI17_zagrade)	C++14	100 / 100	972 ms	65276 KiB

zagrade

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/*
    - Decompose the tree using centroid decomposition.
    - Do something super similar to the example problem in this post: https://www.geeksforgeeks.org/centroid-decomposition-of-tree/
*/
#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define sz(x) (int)(x).size()
#define mp make_pair
#define f first
#define s second
#define all(x) x.begin(), x.end()
using namespace std;
const int N=3e5+5;
vector<vector<int> > graph(N),centroid_graph(N);
vector<int> visited(N),siz(N),local(N),what(N);
void dfs(int tr,int par)
{
    siz[tr]=1;
    for(auto p:graph[tr])
    {
        if(visited[p]||p==par)
            continue;
        dfs(p,tr);
        siz[tr]+=siz[p];
    }
}
 
 
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Compilation message (stderr)

zagrade.cpp: In function 'int main()':
zagrade.cpp:134:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%i",&n);
  ~~~~~^~~~~~~~~
zagrade.cpp:142:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i %i",&a,&b);
         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 30 / 30
• Subtask 3: 60 / 60