Submission #23564

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
23564	2017-05-12 15:51:14	samir_droubi	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	100 / 100	373 ms	112020 KiB

skyscraper

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#include <bits/stdc++.h>
using namespace std;
int n,m;
const int mxn=(1e5)+5;
vector<pair<int,int> >gr[mxn];
set<int>a[mxn];
set<pair<int,int> >s;
int st,en;
int dis[mxn];
set<pair<int,int> >::iterator it;
set<int>::iterator itt;
void dijk()
{
  for(int i=0;i<mxn;++i)dis[i]=(1e9);
  dis[st]=0;
  s.insert({0,st});
  while(!s.empty())
  {
    it=s.begin();
    int v=it->second;
    int d=it->first;
    s.erase(it);
    for(int i=0;i<gr[v].size();++i)
    {
      int u=gr[v][i].first;
      int w=gr[v][i].second;
      if(d+w<dis[u])
      {
        dis[u]=d+w;
        s.insert({d+w,u});
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

skyscraper.cpp: In function 'void dijk()':
skyscraper.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<gr[v].size();++i)
                ^
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:50:10: warning: statement has no effect [-Wunused-value]
   for(itt;itt!=a[i].end();++itt)
          ^
skyscraper.cpp:65:10: warning: statement has no effect [-Wunused-value]
   for(itt;itt!=a[i].end();++itt)
          ^
skyscraper.cpp:37:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
                     ^
skyscraper.cpp:41:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&b,&p);
                      ^

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 14 / 14
• Subtask 4: 21 / 21
• Subtask 5: 43 / 43