Submission #66655

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
66655	2018-08-12 00:36:25	tincamatei	Jakarta Skyscrapers (APIO15_skyscraper)	C++14	57 / 100	1070 ms	76664 KiB

skyscraper

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#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 30000;
vector<pair<int, int> > graph[MAX_N];
unordered_map<int, bool> doges[MAX_N];
int dist[MAX_N];
int dijkstra(int n, int src, int dest) {
  priority_queue<pair<int, int>, vector<pair<int, int> >, greater<pair<int, int> > > pq;
  memset(dist, 0x3f3f3f3f, sizeof(dist));
  dist[src] = 0;
  pq.push(make_pair(0, src));
  while(!pq.empty()) {
    int nod = pq.top().second, distNod = pq.top().first;
    pq.pop();
    if(dist[nod] == distNod) {
      if(nod == dest)
        return distNod;
      for(auto it: graph[nod])
      if(distNod + it.second < dist[it.first]) {
        dist[it.first] = distNod + it.second;
        pq.push(make_pair(dist[it.first], it.first));
      }
    }
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

skyscraper.cpp: In function 'int main()':
skyscraper.cpp:37:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &n, &m);
   ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:40:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &b, &p);
     ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:73:9: warning: 'dest' may be used uninitialized in this function [-Wmaybe-uninitialized]
   printf("%d", dijkstra(n, src, dest));
   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
skyscraper.cpp:73:9: warning: 'src' may be used uninitialized in this function [-Wmaybe-uninitialized]

• Subtask 1: 10 / 10
• Subtask 2: 12 / 12
• Subtask 3: 14 / 14
• Subtask 4: 21 / 21
• Subtask 5: 0 / 43