Estoy intentando hacer años anteriores

2019/day_2/intcode.hh

@@ -0,0 +1,50 @@
+#ifndef INTCODE_H
+#define INTCODE_H
+
+#include<vector>
+#include<iostream>
+
+class IntCode {
+  std::vector<int> memory;
+  bool halt = false;
+  int ip = 0; //instruction pointer
+
+  void op_add() {
+    int param_1 = memory[memory[ip+1]];
+    int param_2 = memory[memory[ip+2]];
+
+    memory[memory[ip+3]] = param_1 + param_2;
+    ip += 4;
+  }
+
+  void op_mult() {
+    int param_1 = memory[memory[ip+1]];
+    int param_2 = memory[memory[ip+2]];
+
+    memory[memory[ip+3]] = param_1 * param_2;
+    ip += 4;
+  }
+
+  void run() {
+    while(!halt){
+      switch(memory[ip]) {
+        case 1:  op_add();    break;
+        case 2:  op_mult();   break;
+        case 99: halt = true; break;
+      }
+    }
+  }
+
+  public:
+  IntCode(std::vector<int> memory) {
+    this->memory = memory;
+    run();
+  }
+
+
+  int get(int address) {
+    return memory[address];
+  }
+};
+
+#endif