big internal rework

test/test_solver.cpp

@@ -3,6 +3,7 @@
 #include <fstream>
 #include <iostream>
 
+#include "IO.h"
 #include "Solver.h"
 
 namespace fs = std::filesystem;
@@ -16,7 +17,7 @@ int main() {
 
 		std::ifstream in {fileName};
 
-		Matrix mat {1, 1}, imageMat {1, 1}, noyauMat {1, 1};
+		Matrix mat, imageMat, noyauMat;
 		in >> mat >> imageMat >> noyauMat;
 
 		Vect image {imageMat};