add lab04 solution

lab04/Makefile

@@ -0,0 +1,42 @@
+# Compiler and flags
+CC = gcc
+CFLAGS = -Wall -std=c11
+
+#Input file
+INPUT = input2.txt
+OUTPUT = output.txt
+REF = ref2.txt
+# Source file
+SRCS = lab4.c
+# Output
+TARGET = lab4.out
+
+# Default target
+all: $(TARGET)
+
+# Rule to build the executable
+$(TARGET): $(SRCS)
+	$(CC) $(CFLAGS) $(SRCS) -o $(TARGET)
+
+
+convert_input: $(INPUT)
+	dos2unix $(INPUT)
+
+convert_output: $(OUTPUT)
+	dos2unix $(OUTPUT)
+
+check: $(OUTPUT) $(REF)
+	@diff -q $(OUTPUT) $(REF) > /dev/null; \
+	if [ $$? -eq 0 ]; then \
+		echo "Pass"; \
+	else \
+		echo "Fail"; \
+	fi
+
+# Rule to run the program
+run: $(TARGET)
+	./$(TARGET) $(INPUT) $(OUTPUT) 3
+
+# Rule to clean generated files
+clean:
+	rm -f $(TARGET)