Submission #586032

#	Time	Username	Problem	Language	Result	Execution time	Memory
586032		almothana05	Connecting Supertrees (IOI20_supertrees)	C++14	Compilation error	0 ms	0 KiB

supertrees

#include "supertrees.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
vector<vector<int> >erg;
vector<int>cmp[2000];
int vis[2000];
int construct(vector<vector<int>> p) {
	int menge = p.size() , pl = 1;
	for(int i = 0 ; i < n ; i++){
		erg.push_back(vector<int>() );
		for(int j = 0 ; j < n ; j++){
			erg[i].push_back(0);
		}
	}
	for(int i = 0 ; i < n  ; i++){
		p[i][i] = 1;
	}
	for(int i = 0 ; i < menge ; i++){
		if(vis[i] == 0){
			vis[i] = pl;
			for(int j = 0 ; j < menge ; j++){
				if(p[i][j] == 1){
					cmp[pl].push_back(j);
					vis[j] = pl;
				}
			}
			int fl = 1;
			for(int j = 0 ; j < menge ; j++){
				for(int k = 0 ; k < cmp[pl].size() ; k++){
					if(p[i][j] != p[cmp[pl][k]][j]){
						fl = 0;
						break;
					}
				}
			}
			for(int j = 0 ; j < cmp[pl].size() - 1 ; j++){
				erg[cmp[pl][j]][cmp[pl][j + 1]] = 1;
				erg[cmp[pl][j + 1]][cmp[pl][j]] = 1;
			}
			if(fl == 0){
				return 0;
			}
			pl++;
		}
	}
	build(erg);
	return 1;
}

Compilation message (stderr)

supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:10:22: error: 'n' was not declared in this scope
   10 |  for(int i = 0 ; i < n ; i++){
      |                      ^
supertrees.cpp:16:22: error: 'n' was not declared in this scope
   16 |  for(int i = 0 ; i < n  ; i++){
      |                      ^
supertrees.cpp:30:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   30 |     for(int k = 0 ; k < cmp[pl].size() ; k++){
      |                     ~~^~~~~~~~~~~~~~~~
supertrees.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |    for(int j = 0 ; j < cmp[pl].size() - 1 ; j++){
      |                    ~~^~~~~~~~~~~~~~~~~~~~