feat: add a 3rd approach with cpp

Author: Keshav-writes-code

try3 (Vector Approach 2)/classes.cpp

@@ -0,0 +1,74 @@
+#include <cstdlib>
+#include <iostream>
+#include <vector>
+
+struct Connection {
+  double weight;
+  double deltaWeight;
+};
+class Neuron;
+
+typedef std::vector<Neuron> Layer;
+
+// ********************** Class Neuron **************************
+
+class Neuron {
+public:
+  Neuron(unsigned numOutputs);
+
+private:
+  static double randomWeight() { return rand() / double(RAND_MAX); }
+  double m_outputVal;
+  std::vector<Connection> m_outputWeights;
+};
+Neuron::Neuron(unsigned numOutputs) {
+  for (unsigned c = 0; c < numOutputs; c++) {
+    m_outputWeights.push_back(Connection());
+    m_outputWeights.back().weight = randomWeight();
+  }
+};
+
+// ********************** Class Net **************************
+class Net {
+public:
+  Net(const std::vector<unsigned> &topology);
+  void feedforward(std::vector<double> &inputVals) {};
+  void backProp(const std::vector<double> &targetVals) {};
+  void getResults(const std::vector<double> resultVals) const {};
+
+private:
+  std::vector<Layer> m_layers;
+};
+
+Net::Net(const std::vector<unsigned> &topology) {
+  unsigned numLayers = topology.size();
+  for (unsigned layerNum = 0; layerNum < numLayers; layerNum++) {
+    m_layers.push_back(Layer());
+    unsigned numOutputs =
+        layerNum == numLayers - 1 ? 0 : topology[layerNum + 1];
+
+    for (unsigned neuronNumber = 0; neuronNumber <= topology[layerNum];
+         neuronNumber++) {
+      m_layers.back().push_back(Neuron(numOutputs));
+      std::cout << "Made a new Neuron!" << std::endl;
+    }
+  }
+}
+int main(int argc, char *argv[]) {
+  std::vector<unsigned> topology;
+  topology.push_back(3);
+  topology.push_back(2);
+  topology.push_back(1);
+  Net myNet(topology);
+
+  std::vector<double> inputVals;
+  myNet.feedforward(inputVals);
+
+  std::vector<double> targetVals;
+  myNet.backProp(targetVals);
+
+  std::vector<double> resultVals;
+  myNet.getResults(resultVals);
+
+  return 0;
+}

try3 (Vector Approach 2)/classes.h

@@ -0,0 +1,19 @@
+CXX = g++
+CXXFLAGS = 
+TARGET = my_program
+SRCS = main.cpp classes.cpp
+OBJDIR = build
+OBJS = $(addprefix $(OBJDIR)/, $(SRCS:.cpp=.o))
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(CXX) $(CXXFLAGS) -o $(TARGET) $(OBJS)
+	./$(TARGET)
+$(OBJDIR)/%.o: %.cpp | $(OBJDIR)
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+$(OBJDIR):
+	mkdir -p $(OBJDIR)
+run: $(TARGET)
+	./$(TARGET)
+clean:
+	rm -rf $(OBJDIR) $(TARGET)