Begin Day 3 Part 2

day3/day3Part2.cpp

@@ -0,0 +1,42 @@
+#include <iostream>
+#include <cmath>
+#include <fstream>
+using namespace std;
+
+int main (void)
+{
+    char currentLine[12];
+    int bitTrue[12] = {};
+    int bitFalse[12] = {};
+    int gammaRateBin[12] = {};
+    int epsilonRateBin[12] = {};
+    int gammaRateDec = 0;
+    int epsilonRateDec = 0;
+    int powerConsumption;
+    ifstream readFile ("data/input.txt", ios::in);
+
+    while(readFile >> currentLine)
+    {
+        for(int i=0;i<12;i++)
+        {
+            if(currentLine[i] == '0') bitFalse[i]++;
+            else if(currentLine[i] == '1') bitTrue[i]++;
+            else cout << "Error!!!";
+        }
+    }
+
+    for(int i=0;i<12;i++)
+    {
+        if(bitTrue[i] > bitFalse[i]) gammaRateBin[i] = 1;
+        else epsilonRateBin[i] = 1;
+    }
+
+    for(int i=0;i<12;i++)
+    {
+        gammaRateDec += gammaRateBin[i] * pow(2,11-i);
+        epsilonRateDec += epsilonRateBin[i] * pow(2,11-i);
+    }
+    powerConsumption = gammaRateDec * epsilonRateDec;
+    cout << "\nPower Consumption: " << powerConsumption;
+    return 0;
+}