Submission #841894

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
841894	2023-09-02 08:12:31	vjudge1	Roadside Advertisements (NOI17_roadsideadverts)	C++17	7 / 100	1075 ms	4824 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
bool m[50001];
ll cnt,a1,a2,a3,a4,a5;
vector<pair<ll,ll>>g[50001];
void dfs(ll v,ll p,ll sum)
{
  if(m[v])
  {
    cnt+=sum;sum=0;
  }
  for(pair<ll,ll> it:g[v])
  {
    if(it.first!=p)
    {
      dfs(it.first,v,sum+it.second);
    }
  }
}
int main()
{
  ios_base::sync_with_stdio();
    cin.tie(NULL);
    cout.tie(NULL);
    
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

roadsideadverts.cpp: In function 'int main()':
roadsideadverts.cpp:52:30: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   52 |   m[a2]=m[a3]=m[a4]=m[a5]=cnt=0;
      |                           ~~~^~
roadsideadverts.cpp:33:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
roadsideadverts.cpp:37:11: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   37 |      scanf("%d%d%d",&u,&v,&c);
      |      ~~~~~^~~~~~~~~~~~~~~~~~~
roadsideadverts.cpp:42:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |  scanf("%d",&q);
      |  ~~~~~^~~~~~~~~
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