Submission #479888

#	Time	Username	Problem	Language	Result	Execution time	Memory
479888		glome	Connecting Supertrees (IOI20_supertrees)	C++17	11 / 100	215 ms	23472 KiB

supertrees

#include "supertrees.h"
#include <vector>
#include<bits/stdc++.h>

using namespace std;

int construct(std::vector<std::vector<int>> p) {
	bool ok = 1;
	for (int i = 0; i<p.size(); i++) {
		for (int j = 0; j<p.size(); j++) {
			ok &= p[i][j];
		}
	}
	if(ok) {
		vector<vector<int>> ans(p.size(), vector<int> (p.size()));
		for (int i = 0; i<p.size(); i++) {
			ans[i][i] = 0;
		}
		for (int i = 1; i<p.size(); i++) {
			ans[0][i] = 1;
			ans[i][0] = 1;
		}
		build(ans);
		return 1;
	}	
}

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for (int i = 0; i<p.size(); i++) {
      |                  ~^~~~~~~~~
supertrees.cpp:10:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |   for (int j = 0; j<p.size(); j++) {
      |                   ~^~~~~~~~~
supertrees.cpp:16:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |   for (int i = 0; i<p.size(); i++) {
      |                   ~^~~~~~~~~
supertrees.cpp:19:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   for (int i = 1; i<p.size(); i++) {
      |                   ~^~~~~~~~~
supertrees.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type]
   26 | }
      | ^

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