Submission #424439

#	Time	Username	Problem	Language	Result	Execution time	Memory
424439		MrFrancho	Connecting Supertrees (IOI20_supertrees)	C++14	Compilation error	0 ms	0 KiB

supertrees

#include "supertrees.h"
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1000;

vector<vector<int>> connectedGroups;
vector<bool> vis(MAXN);
int n;

void DFS(int node, int cur, vector<vector<int>> &p) {
	connectedGroups[cur].push_back(node);
	vis[node] = true;

	for(int i = 0; i < n; i++) {
		if(p[node][i] == 1 && !vis[i])
			DFS(i,cur,p)
	}
}

int construct(vector<vector<int>> p) {
	n = p.size();
	vector<vector<int>> answer;

	for(int i = 0; i < n; i++) {
		for(int j = 0; j < n; j++) {
			for(int k = 0; k < n; k++) {
				if(p[i][k] == 1 && p[j][k] == 1 && p[i][j] != 1)
					return 0;
			}
		}
	}

	int c = 0;
	for (int i = 0; i < n; i++) {
		if(!vis[i]) {
			DFS(i,c,p);
			c++;
		}
	}

	for(auto v : connectedGroups) {
		vector<int> a(n);
		for(int i = 1; i < v.size(); i++) {
			a[v[0]][v[i]] = 1;
		}
		answer.push_back(a);
	}

	build(answer);
	return 1;
}

Compilation message (stderr)

supertrees.cpp: In function 'void DFS(int, int, std::vector<std::vector<int> >&)':
supertrees.cpp:17:16: error: expected ';' before '}' token
   17 |    DFS(i,cur,p)
      |                ^
      |                ;
   18 |  }
      |  ~              
supertrees.cpp: In function 'int construct(std::vector<std::vector<int> >)':
supertrees.cpp:44:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |   for(int i = 1; i < v.size(); i++) {
      |                  ~~^~~~~~~~~~
supertrees.cpp:45:11: error: invalid types '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}[__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type {aka int}]' for array subscript
   45 |    a[v[0]][v[i]] = 1;
      |           ^