Day 6

CMakeLists.txt

@@ -17,7 +17,7 @@ link_directories("/usr/local/lib" "/opt/homebrew/opt/llvm/lib")
 
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS} -fopenmp")
 
-set(executables d1 d2 d3 d4 d5)
+set(executables d1 d2 d3 d4 d5 d6)
 
 foreach(executable ${executables})
     add_executable(${executable} "${executable}/main.cxx") 

d6/input.txt

@@ -0,0 +1,2 @@
+Time:        40     70     98     79
+Distance:   215   1051   2147   1005

d6/main.cxx

@@ -0,0 +1,41 @@
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <string>
+#include <vector>
+#include <limits>
+
+int main()
+{
+  std::ifstream file{"../d6/input.txt"};
+  std::string line, temp, strDistance, strTime;
+  int result{0};
+
+  std::getline(file, line);
+  std::stringstream tss(line);
+  tss >> temp;
+  while (tss.tellg() != -1)
+  {
+    tss >> temp;
+    strTime.append(temp);
+  }
+
+  std::getline(file, line);
+  std::stringstream dss(line);
+  dss >> temp;
+  while (dss.tellg() != -1)
+  {
+    dss >> temp;
+    strDistance.append(temp);
+  }
+
+  long time = std::stol(strTime);
+  long distance = std::stol(strDistance);
+  for (int i{0}; i < time; i++)
+  {
+    result += distance < (time - i) * i;
+  }
+
+  std::cout << result << std::endl;
+  return 0;
+}