Submission #72750

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
72750	2018-08-26 22:14:10	Pajaraja	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	100 / 100	69 ms	13432 KiB

skyscraper

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#include <bits/stdc++.h>
#define MAXN 30007
using namespace std;
vector<int> g[MAXN],w[MAXN];
set<int> v[MAXN];
bool vi[MAXN];
int dist[MAXN],en;
void dijkstra(int s)
{
  priority_queue<pair<int,int> > pq;
  pq.push(make_pair(0,s));
  while(!pq.empty())
  {
    int u=pq.top().second,d=-pq.top().first;
    pq.pop();
    if(vi[u]) continue;
    dist[u]=d;
    vi[u]=true;
    if(u==en) return;
    for(int i=0;i<g[u].size();i++) if(!vi[g[u][i]]) pq.push(make_pair(-d-w[u][i],g[u][i]));
  }
}
int main()
{
  int n,m,st,t1,t2;
  scanf("%d%d",&n,&m);
  scanf("%d%d%d%d",&st,&t1,&en,&t2);
  v[st].insert(-t1);
  v[en].insert(-t2);
  for(int i=0;i<m-2;i++)
 
 
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Compilation message (stderr)

skyscraper.cpp: In function 'void dijkstra(int)':
skyscraper.cpp:20:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<g[u].size();i++) if(!vi[g[u][i]]) pq.push(make_pair(-d-w[u][i],g[u][i]));
               ~^~~~~~~~~~~~
skyscraper.cpp: In function 'int main()':
skyscraper.cpp:64:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int j=0;j<g[i].size();j++) vi[g[i][j]]=false;
               ~^~~~~~~~~~~~
skyscraper.cpp:26:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
skyscraper.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d",&st,&t1,&en,&t2);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:32:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&t1,&t2);
   ~~~~~^~~~~~~~~~~~~~~~

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