Submission #227166

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
227166	2020-04-26 09:41:37	abeker	Matching (COCI20_matching)	C++17	58 / 110	850 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;
const int MAXV = 2e7 + 5;
 
struct Node {
  int val;
  Node* nxt;
};
 
class Graph {
  Node* get_node(int dest, Node* head) {
    Node* newNode = new Node;
    newNode -> val = dest;
    newNode -> nxt = head;
    return newNode;
  }
  int N;
  public:
    Node **head;
    Graph(int N) {
      head = new Node*[N]();
      this -> N = N;
      for (int i = 0; i < N; i++)
        head[i] = nullptr;
    }
 
 
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Compilation message (stderr)

matching.cpp: In function 'int get_id(int, int)':
matching.cpp:118:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  return x >= off[node] && x < off[node] + tour[node].size() ? tour[node][x - off[node]].second : pos[node][x]; 
                           ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
matching.cpp: In function 'bool dfs(int, int, std::vector<int>&)':
matching.cpp:127:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   return x < off[node] + tour[node].size();
          ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
matching.cpp: In function 'void init(int)':
matching.cpp:141:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (off[x] < tour[x].size())
         ~~~~~~~^~~~~~~~~~~~~~~~
matching.cpp: In function 'void load()':
matching.cpp:97:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
matching.cpp:99:8: 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