blizzardfinnegan/advent-of-code-cpp-2021
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Lanternfish hits hard though...

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Blizzard Finnegan 2021-12-09 04:51:57 -05:00
parent cbc075544c
commit 15d2a47735
5 changed files with 138 additions and 0 deletions
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day6/data/testInput.txt Normal file
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3,4,3,1,2

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day6/day6Part1 Executable file
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day6/day6Part1.cpp Normal file
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#include <iostream>
#include <cmath>
#include <fstream>
#include <vector>
using namespace std;
int main (void)
{
string rawInput;
vector<int> fishCount = {};
vector<int> nextFishCount;
int dayCount = 0;
ifstream readFile ("data/input.txt", ios::in);
//Read file into arrays
while(getline(readFile, rawInput))
{
for(int i=0;i<rawInput.size();i++)
{
switch(rawInput[i])
{
case '1':
fishCount.push_back(1);
break;
case '2':
fishCount.push_back(2);
break;
case '3':
fishCount.push_back(3);
break;
case '4':
fishCount.push_back(4);
break;
case '5':
fishCount.push_back(5);
break;
case '6':
fishCount.push_back(6);
break;
case '7':
fishCount.push_back(7);
break;
case '8':
fishCount.push_back(8);
break;
default:
continue;
}
}
}
nextFishCount = fishCount;
for(dayCount;dayCount<80;dayCount++)
{
for(int i=0;i<fishCount.size();i++)
{
if(fishCount[i] == 0)
{
nextFishCount[i] = 6;
nextFishCount.push_back(8);
}
else nextFishCount[i]--;
}
fishCount = nextFishCount;
}
cout << "Fish Count: " << fishCount.size() << endl;
return 0;
}

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day6/day6Part2.cpp Normal file
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#include <iostream>
#include <cmath>
#include <fstream>
#include <vector>
using namespace std;
int main (void)
{
string rawInput;
vector<short int> fishCount = {};
vector<short int> nextFishCount;
short int dayCount = 0;
ifstream readFile ("data/input.txt", ios::in);
//Read file into arrays
while(getline(readFile, rawInput))
{
for(int i=0;i<rawInput.size();i++)
{
switch(rawInput[i])
{
case '1':
fishCount.push_back(1);
break;
case '2':
fishCount.push_back(2);
break;
case '3':
fishCount.push_back(3);
break;
case '4':
fishCount.push_back(4);
break;
case '5':
fishCount.push_back(5);
break;
case '6':
fishCount.push_back(6);
break;
case '7':
fishCount.push_back(7);
break;
case '8':
fishCount.push_back(8);
break;
default:
continue;
}
}
}
nextFishCount = fishCount;
for(dayCount;dayCount<256;dayCount++)
{
for(int i=0;i<fishCount.size();i++)
{
if(fishCount[i] == 0)
{
nextFishCount[i] = 6;
nextFishCount.push_back(8);
}
else nextFishCount[i]--;
}
cout << "New Day! Processing day " << dayCount << "..." << endl;
fishCount = nextFishCount;
}
cout << "Fish Count: " << fishCount.size() << endl;
return 0;
}