Submission #227008

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
227008	2020-04-25 20:50:04	abeker	Matching (COCI20_matching)	C++17	58 / 110	2037 ms	524292 KiB

matching

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#include <bits/stdc++.h>
using namespace std;
typedef pair <int, int> pii;
const int MAXN = 1e5 + 5;
const int offset = 1 << 17;
class TwoSat {
  int n;
  vector <int> sol;
  vector <bool> bio;
  vector <int> comp;
  vector <vector <int>> adj, rev;
  stack <int> order;
  public:
    int add_variables(int vars) {
      n += vars;
      for (int i = 0; i < 2 * vars; i++) {
        sol.push_back(0);
        bio.push_back(false);
        comp.push_back(0);
        adj.push_back(vector <int> ());
        rev.push_back(vector <int> ());
      }
      return n - vars;
    }
    TwoSat(int _n) {
      n = 0;
      add_variables(_n);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

matching.cpp: In function 'void init(int)':
matching.cpp:123:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (off[x] < tour[x].size())
         ~~~~~~~^~~~~~~~~~~~~~~~
matching.cpp:130:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (int i = 0; i < tour[x].size(); i++)
                  ~~^~~~~~~~~~~~~~~~
matching.cpp: In function 'void load()':
matching.cpp:98:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
matching.cpp:100:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", x + i, y + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 6 / 6
• Subtask 3: 7 / 7
• Subtask 4: 40 / 40
• Subtask 5: 0 / 52