Submission #1026251

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1026251	2024-07-17 18:30:07	xnqs	Jakarta Skyscrapers (APIO15_skyscraper)	C++17	36 / 100	690 ms	69080 KiB

skyscraper

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#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <utility>
#include <algorithm>
#include <unordered_map>
int x, dog_cnt;
std::vector<std::pair<int,int>> dogs; 
std::unordered_map<int,int> dist[30005];
std::vector<int> dogs_in[30005];
int astar(int pos, int dog) {
  std::priority_queue<std::tuple<int,int,int>, std::vector<std::tuple<int,int,int>>, std::greater<std::tuple<int,int,int>>> pq;
  pq.emplace(-0x3f3f3f3f+std::abs(pos-dogs[1].first)*3,pos,dog);
  dist[pos][dog] = -0x3f3f3f3f;
  int iterations = 1500000;
  while (!pq.empty()&&iterations--) {
    auto [c, pos, dog] = pq.top();
    pq.pop();
    if (pos-dogs[dog].second>=0) {
      if (!dist[pos-dogs[dog].second].count(dog)||dist[pos-dogs[dog].second][dog]>dist[pos][dog]+1) {
        dist[pos-dogs[dog].second][dog] = dist[pos][dog]+1;
        pq.emplace(dist[pos-dogs[dog].second][dog]+std::abs((pos-dogs[dog].second)-dogs[1].first)*3,
                  pos-dogs[dog].second,
                  dog);
      }
 
 
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Compilation message (stderr)

skyscraper.cpp: In function 'int astar(int, int)':
skyscraper.cpp:43:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   43 |    if (next_idx+1>=dogs_in[pos].size()||dogs_in[pos][next_idx]!=dog) {
      |        ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~

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