Submission #829694

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
829694	2023-08-18 14:10:35	faruk	Connecting Supertrees (IOI20_supertrees)	C++17	65 / 100	160 ms	27952 KiB

supertrees

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#include "supertrees.h"
#include <iostream>
#include <vector>
#include <algorithm>
#define mp make_pair
#define all(a) a.begin(), a.end()
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
vector<vector<int> > out;
int n;
bool check_components(vector<vector<int> > p) {
  vector<int> comp(n, -1);
  for (int i = 0; i < n; i++) {
    if (p[i][i] != 1)
      return false;
    if (comp[i] == -1) {
      for (int j = 0; j < n; j++) {
        if (p[i][j] != 0 and comp[j] != -1)
          return false;
        if (p[i][j] != 0)
          comp[j] = i;
      }
    }
    else {
      for (int j = 0; j < n; j++)
 
 
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Compilation message (stderr)

supertrees.cpp: In function 'void make_line(std::vector<int>)':
supertrees.cpp:41:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |  for (int i = 0; i < a.size() - 1; i++)
      |                  ~~^~~~~~~~~~~~~~
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:90:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   90 |   for (int i = 0; i < chains.size(); i++) {
      |                   ~~^~~~~~~~~~~~~~~
supertrees.cpp:91:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |    for (int j = i + 1; j < chains.size(); j++) {
      |                        ~~^~~~~~~~~~~~~~~
supertrees.cpp:104:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |    for (int i = 0; i < chains.size(); i++)
      |                    ~~^~~~~~~~~~~~~~~

• Subtask 1: 11 / 11
• Subtask 2: 0 / 10
• Subtask 3: 19 / 19
• Subtask 4: 35 / 35
• Subtask 5: 0 / 21
• Subtask 6: 0 / 4