Submission #43962

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
43962	2018-03-29 01:08:34	model_code	Construction of Highway (JOI18_construction)	C++17	100 / 100	445 ms	151112 KiB

construction

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#include <bits/stdc++.h>
using namespace std;
const int NMAX=100000;
const int BS=17;
int Par[NMAX],Dep[NMAX],X[NMAX],dep[NMAX],par[NMAX],S[NMAX];
int n;
vector<vector<int> > e;
void dfs(int i)
{
  S[i]=0;
  for(int x=0;x<e[i].size();x++){
    int j=e[i][x];
    dep[j]=dep[i]+1;
    par[j]=i;
    dfs(j);
    S[i]+=S[j];
  }
}
void HLD()
{
  dep[0]=0;
  par[0]=-1;
  dfs(0);
  int NX=0;
  Par[0]=0;
 
 
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Compilation message (stderr)

construction.cpp: In function 'void dfs(int)':
construction.cpp:15:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int x=0;x<e[i].size();x++){
               ~^~~~~~~~~~~~
construction.cpp: In function 'void HLD()':
construction.cpp:40:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<e[i].size();j++){
                 ~^~~~~~~~~~~~
construction.cpp:49:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int j=0;j<e[i].size();j++){
                 ~^~~~~~~~~~~~
construction.cpp: In function 'int main()':
construction.cpp:101:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&n);
   ~~~~~^~~~~~~~~
construction.cpp:104:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&(C[i]));
     ~~~~~^~~~~~~~~~~~~~
construction.cpp:108:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&(A[i]),&(B[i]));
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 9 / 9
• Subtask 3: 84 / 84