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weakvertices.cpp
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weakvertices.cpp
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#include <bits/stdc++.h>
using namespace std;
#define ld long double
#define ll long long
#define vec vector
#define arr array
void processGraph(int n)
{
vec<vec<bool>> G;
for (int i = 0; i < n; i++)
{
vec<bool> g;
for (int i = 0; i < n; i++)
{
bool x;
cin >> x;
g.push_back(x);
}
G.push_back(g);
}
for (int i = 0; i < n; i++)
{
bool weak = true;
for (int j = 0; j < n; j++)
{
for (int k = 0; k < n; k++)
{
if (G[i][k] && G[i][j] && G[j][k] && i != k && i != j && j != k)
{
weak = false;
}
}
}
if (weak)
{
cout << i << " ";
}
}
cout << "\n";
}
int main()
{
int n;
while (cin >> n && n != -1)
{
processGraph(n);
}
return 0;
}