refactored SampleID and introduced SampleSolution

mlmc/src/utility/SampleID.hpp

 #ifndef SAMPLEID_HPP
 #define SAMPLEID_HPP
 
+#include "Algebra.h"
 #include <string>
 
 
 struct SampleID {
-    int level = -1;
-    int m = -1;
-    bool coarse = false;
-
-    SampleID() = default;
-
-    SampleID(int level, int m, int coarse) :
-        level(level), m(m), coarse(coarse) {}
+    int level;
+    int number;
+    bool coarse;
 
     std::string Str() const {
         return "l:" + std::to_string(level) +
-            "-m:" + std::to_string(m) +
+            "-m:" + std::to_string(number) +
             "-c:" + std::to_string((int) coarse);
     }
 };
 
+struct SampleSolution {
+    SampleID id;
+
+    int mGraphLevel;
+
+    double Q;
+
+    double Cost;
+
+    Vector U;
+
+    SampleSolution(MatrixGraphs &solMGraphs, int mGraphLevel) :
+        U(Vector(solMGraphs[mGraphLevel])) {
+        Init();
+    }
+
+    void Init() {
+        Q = 0.0;
+        Cost = 0.0;
+        U = 0.0;
+    }
+};
+
 #endif //SAMPLEID_HPP