build: add Makefile for project build configuration

Author: harshsankhla18

Makefile

@@ -0,0 +1,19 @@
+# Compiler and compiler flags
+CC = gcc
+CFLAGS = -g -std=c11 -Wall -Wextra -Werror -Wshadow
+LDFLAGS = -lm
+
+# Source files and executable name
+SRCS = filter.c helpers.c
+TARGET = filter
+
+# Default target
+all: $(TARGET)
+
+# Rule to link the object files into the final executable
+$(TARGET): $(SRCS)
+	$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
+
+# Rule to clean up generated files
+clean:
+	rm -f $(TARGET)