Submission #228766

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
228766	2020-05-02 14:12:29	kshitij_sodani	Mergers (JOI19_mergers)	C++17	100 / 100	1640 ms	221036 KiB

mergers

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#include <iostream>
#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
vector<int> adj[500001];
int col[500001];
vector<int> cc[500001];
int par[500001][20];
int lev[500001];
int st[500001];
int endd[500001];
int co=0;
int dfs(int no,int par2=-1,int lev2=0){
  st[no]=co;
  co+=1;
  par[no][0]=par2;
  lev[no]=lev2;
  for(auto j:adj[no]){
    if(j==par2){
      continue;
    }
    dfs(j,no,lev2+1);
  }
  endd[no]=co-1;
}
int lca(int aa,int bb){
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

mergers.cpp: In function 'int dfs(int, int, int)':
mergers.cpp:29:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
mergers.cpp: In function 'int lca(int, int)':
mergers.cpp:40:9: warning: unused variable 'cc' [-Wunused-variable]
     int cc=bb;
         ^~
mergers.cpp: In function 'int dfs2(int, int)':
mergers.cpp:94:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
mergers.cpp: In function 'int main()':
mergers.cpp:152:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=1;j<cc[i].size();j++){
               ~^~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 14 / 14
• Subtask 4: 22 / 22
• Subtask 5: 30 / 30