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#include <map>
#include <vector>
#include <utility>
#include <iostream>
std::pair<int,float> column_max(const auto & m, int column)
{
int index = -1;
float maximum = -std::numeric_limits<float>::max();
for (const auto & [key,value] : m)
if (value.size() > column && value[column] > maximum)
{
index = key;
maximum = value[column];
}
return {index,maximum};
}
int main()
{
const std::map<int,std::vector<float>> m =
{
{0, { 1, 5, 10, 22}},
{1, {31, 5, 10, 12}},
{2, { 1, 15, 18, 12}}
};
for (int i=0; i<4; i++)
{
const auto [index,maximum] = column_max(m,i);
std::cout << "#" << i << ": " << maximum << " " << index << "\n";
}
return 0;
}
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