Submission #227062

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
2270622020-04-26 00:19:48abekerMatching (COCI20_matching)C++17
11 / 110
14 ms14080 KiB
#include <bits/stdc++.h>
using namespace std;
typedef pair <int, int> pii;
const int MAXN = 1e5 + 5;
const int offset = 1 << 17;
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;
}
Graph(){}
 
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Compilation message (stderr)

matching.cpp: In function 'void add_clause(int, int, int)':
matching.cpp:117:8: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if (u < off[x] + tour[x].size())
      ~~^~~~~~~~~~~~~~~~~~~~~~~~~
matching.cpp: In function 'void init(int)':
matching.cpp:126:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while (off[x] < tour[x].size())
         ~~~~~~~^~~~~~~~~~~~~~~~
matching.cpp: In function 'void load()':
matching.cpp:92:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
matching.cpp:94:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", x + i, y + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~
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