Submission #362699

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
362699	2021-02-04 07:00:36	sean617	Connecting Supertrees (IOI20_supertrees)	C++17	0 / 100	1 ms	364 KiB

supertrees

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#include "supertrees.h"
#include <vector>
#define N 1005
using namespace std;
int n, bu[N];
bool v[N], co[N][N];
vector<int> gu[N], cy, cy2, ans;
vector<std::vector<int> > answer;
int f(int p) {
    if (bu[p] == p) return p;
    else return bu[p] = f(bu[p]);
}
void f_co(int p, int q) {
    co[p][q] = co[q][p] = 1;
}
int construct(std::vector<std::vector<int> > p) {
    int i, j, t, t1, t2, la;
  n = p.size();
  for (i = 0; i < n; i++) bu[i] = i;
  for (i = 0; i < n; i++) {
        for (j = i + 1; j < n; j++) {
            if (p[i][j]== 0) continue;
            if (p[i][j] == 3) return 0;
            t1 = f(i);
            t2 = f(j);
            if (t1 != t2) bu[t1] = t2;
        }
  }
 
 
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Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:37:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for (j = 0; j < gu[t].size(); j++) {
      |                     ~~^~~~~~~~~~~~~~
supertrees.cpp:41:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   41 |         if (j == gu[t].size()) {
      |             ~~^~~~~~~~~~~~~~~
supertrees.cpp:49:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |         for (j = 0; j < gu[t].size(); j++) {
      |                     ~~^~~~~~~~~~~~~~
supertrees.cpp:53:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         if (j == gu[t].size()) {
      |             ~~^~~~~~~~~~~~~~~
supertrees.cpp:63:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |  for (i = 0; i < cy2.size(); i++) {
      |              ~~^~~~~~~~~~~~
supertrees.cpp:66:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   66 |         for (j = 0; j < gu[t2].size(); j++) {
      |                     ~~^~~~~~~~~~~~~~~

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