Make some corrections

src/Makefile

@@ -6,9 +6,9 @@ OBJS=generalAlgorithm.o specialAlgorithm.o funcs.o
 
 EXEC=main analyticPlot
 
-.PHONY: clean
+.PHONY: clean create_dirs
 
-all: $(EXEC)
+all: create_dirs $(EXEC)
 
 main: main.o $(OBJS)
 	$(CC) $(CCFLAGS) -o $@ $^
@@ -22,3 +22,9 @@ analyticPlot: analyticPlot.o
 clean:
 	rm *.o
 	rm $(EXEC)
+	rm -r output
+
+create_dirs:
+	mkdir -p output/general
+	mkdir -p output/special
+	mkdir -p output/error

src/specialAlgorithm.cpp

@@ -40,7 +40,7 @@ void special_algorithm_main()
 
         v_vec = special_algorithm(sub_sig, main_sig, sup_sig, g_vec);
 
-        ofile.open("output/special_algorithm_" + std::to_string(steps) + ".txt");
+        ofile.open("output/special/out_" + std::to_string(steps) + ".txt");
 
         for (int j=0; j < v_vec.n_elem; j++) {
             ofile << std::setprecision(PRECISION) << std::scientific << step_size*(j+1) << ","