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advent-of-code/2022/puzzle-01-02.cc

38 lines
697 B
C++

//
// Created by Matthew Gretton-Dann on 01/12/2022.
//
#include <cstdlib>
#include <iostream>
#include <set>
#include <string>
using Int = std::int64_t;
auto main() -> int
{
Int current_value{0};
std::multiset<Int> values;
std::string line;
while (std::getline(std::cin, line)) {
if (line.empty()) {
values.insert(current_value);
current_value = 0;
}
else {
Int incr{std::stoll(line)};
current_value += incr;
}
}
values.insert(current_value);
Int top_three{0};
auto it = values.crbegin();
top_three += *it++;
top_three += *it++;
top_three += *it++;
std::cout << "Sum of values: " << top_three << '\n';
return EXIT_SUCCESS;
}