Submission #787589

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
787589	2023-07-19 09:58:44	thimote75	Thousands Islands (IOI22_islands)	C++17	35 / 100	157 ms	38060 KiB

islands

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#include "islands.h"
#include <bits/stdc++.h>
using namespace std;
using idata = vector<int>;
using igrid = vector<idata>;
using graph = vector<vector<pair<pair<int, bool>, int>>>;
using bdata = vector<bool>;
using bgrid = vector<bdata>;
graph roads;
bgrid visited;
bgrid visiting;
bdata used;
idata path;
bool dfs (int node, int type, int last) {
  if (visited[node][type] && !visiting[node][type]) return false;
  if (visiting[node][type]) {
    if (type == 1) return true;
    type ++;
    if (visited[node][type]) return false;
  }
  visiting[node][type] = true;
  visited [node][type] = true;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

islands.cpp: In function 'std::variant<bool, std::vector<int, std::allocator<int> > > find_journey(int, int, idata, idata)':
islands.cpp:51:8: warning: unused variable 'st3' [-Wunused-variable]
   51 |   bool st3 = M % 2 == 0;
      |        ^~~

• Subtask 1: 1.75 / 5
• Subtask 2: 1.75 / 5
• Subtask 3: 7.35 / 21
• Subtask 4: 8.399999999999999 / 24
• Subtask 5: 15.749999999999998 / 45