Submission #255695

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
255695	2020-08-01 15:26:35	tincamatei	Parachute rings (IOI12_rings)	C++14	37 / 100	1552 ms	219592 KiB

rings

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#include <bits/stdc++.h>
const int MAX_N = 1000000;
struct DSU {
  int N;
  int sef[MAX_N], grad[MAX_N], rank[MAX_N], size[MAX_N];
  bool ignore[MAX_N];
  enum ProblemState {
    ONLY_CYCLES,    // Am doar lanturi sau ciclii, tb doar sa vedem daca avem un singur ciclu
    CRITICAL_NODES, // Am noduri de grade mai mari sau egale cu 3
                    // vedem ce se intampla daca excludem cate un nod critic, sa nu avem cicluri
                    // sau alte noduri cu grad mai mare ca 3
    NOTHING         // Raspunsul va fi 0 pentru totdeauna
  } state;
  int sizeCycle, cntCycle, gg3;
  std::vector<std::pair<int*, int> > history;
  std::vector<int> criticalNodes;
  std::vector<std::pair<int, int> > edges;
  std::vector<int> graph[MAX_N];
  void setSize(int _N) {
    state = ONLY_CYCLES;
    N = _N;
    reset();
  }
 
 
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Compilation message (stderr)

rings.cpp: In member function 'void DSU::revertTimestamp(int)':
rings.cpp:126:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while(history.size() > timestamp) {
           ~~~~~~~~~~~~~~~^~~~~~~~~~~
rings.cpp: In member function 'void DSU::sanitizeCritical()':
rings.cpp:137:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i = 0; i < criticalNodes.size(); ++i) {
                    ~~^~~~~~~~~~~~~~~~~~~~~~
rings.cpp:141:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j = 0; j < criticalNodes.size(); ++j)
                      ~~^~~~~~~~~~~~~~~~~~~~~~
rings.cpp:144:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j = 0; j < criticalNodes.size(); ++j)
                      ~~^~~~~~~~~~~~~~~~~~~~~~
rings.cpp:162:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int j = 0; j < criticalNodes.size(); ++j) 
                      ~~^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 17 / 17
• Subtask 3: 0 / 18
• Subtask 4: 0 / 14
• Subtask 5: 0 / 31