1 files changed, 50 insertions, 0 deletions

diff --git a/2023/06/src/part2.cpp b/2023/06/src/part2.cpp
new file mode 100644
index 0000000..db35b57
--- /dev/null
+++ b/2023/06/src/part2.cpp
@@ -0,0 +1,50 @@
+#include <iostream>
+#include <fstream>
+#include <sstream>
+#include <cstring>
+#include <vector>
+#include <cmath>
+
+int main(void)
+{
+    long time{};
+    long distance{};
+
+    std::ifstream input{ "resources/input.txt" };
+    if (input.is_open())
+    {
+        long n;
+        std::string line;
+
+        /* Time */
+        std::getline(input,line);
+        for(unsigned char c : line)
+        {
+            if (std::isdigit(c))
+            {
+                time *= 10;
+                time += c - '0';
+            }
+        }
+
+        /* Distance */
+        std::getline(input,line);
+        for(unsigned char c : line)
+        {
+            if (std::isdigit(c))
+            {
+                distance *= 10;
+                distance += c - '0';
+            }
+        }
+
+    }
+    input.close();
+
+    double delta = std::sqrt(time * time - 4 * distance);
+    long from{ static_cast<long>(1 + (time - delta) / 2)};
+    long to{ static_cast<long>(std::ceil((time + delta) / 2)) };
+
+    std::cout << to - from << std::endl;
+    return 0;
+}