Submission #841873

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
841873	2023-09-02 07:56:45	vjudge1	Roadside Advertisements (NOI17_roadsideadverts)	C++17	7 / 100	1101 ms	4996 KiB

roadsideadverts

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#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("avx,avx2,fma")
#include <iostream>
#include <vector>
using namespace std;
#define ll int
ll m[50010];
ll n,cnt,a1,a2,a3,a4,a5;
vector<pair<ll,ll>>g[50001];
void dfs(ll v,ll p,ll sum)
{
  if(m[v]==1)
  {
    cnt+=sum;sum=0;
  }
  //cout<<v<<" "<<sum<<"!!!\n";
  for(pair<ll,ll> it:g[v])
  {
    if(it.first!=p)
    {
      dfs(it.first,v,sum + it.second);
    }
  }
  //cout<<v<<" "<<sum<<"???\n";
}
int main()
{
  ios_base::sync_with_stdio();
    cin.tie(NULL);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

roadsideadverts.cpp: In function 'int main()':
roadsideadverts.cpp:38:11: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |      scanf("%d%d%d",&u,&v,&c);
      |      ~~~~~^~~~~~~~~~~~~~~~~~~
roadsideadverts.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   45 |   scanf("%d%d%d%d%d",&a1,&a2,&a3,&a4,&a5);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 23
• Subtask 3: 0 / 40
• Subtask 4: 0 / 30