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Advent2021/Day 2/Marcus/cpp/part1.cpp

37 lines
745 B
C++

#include <iostream>
#include <stdlib.h>
using namespace std;
int main()
{
string input;
const string forward = "forward";
const string up = "up";
const string down = "down";
int horizontal = 0;
int depth = 0;
while(getline(cin,input))
{
int amount = atoi(&input.c_str()[input.find(' ')]);;
if (string::npos != input.find(forward))
{
horizontal += amount;
}
else if (string::npos != input.find(up))
{
depth -= amount;
}
else if (string::npos != input.find(down))
{
depth += amount;
}
}
cout << horizontal*depth << endl;
return 0;
}