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FileUtils.cpp
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FileUtils.cpp
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#include "FileUtils.h"
void FileUtils::readIntegerInstance(vector<int> &instance, string name)
{
ifstream input;
input.open(name);
unsigned long size;
if (input.is_open())
{
input >> size >> size;
instance.clear();
instance.resize(size);
for (int i = 0; i < size; ++i)
{
input >> instance[i];
}
}
else
cout << "falha na leitura da instancia: " << name << endl;
}
void FileUtils::readGraphInstance(vector<vector<int>> &graph, string name)
{
ifstream input;
input.open(name);
unsigned long size;
vector<pair<int, int>> coord;
int x, y;
if (input.is_open())
{
input >> size;
graph.clear();
graph.resize(size);
for (int i = 0; i < size; ++i)
{
graph[i].clear();
graph[i].resize(size);
}
for (int i = 0; i < size; ++i)
{
input >> x >> y;
coord.emplace_back(x, y);
}
for (int i = 0; i < size; ++i)
for (int j = 0; j < size; ++j)
graph [i][j] = euclideanDist(coord[i], coord[j]);
cout << "li\n";
}
else
cout << "falha na leitura da instancia: " << name << endl;
}
int FileUtils::euclideanDist(pair<int, int> p1, pair<int, int> p2)
{
return (int)sqrt((p1.first*p1.first - p2.first*p2.first)+(p1.second*p1.second - p2.second*p2.second));
}