Added source.

Makefile

@@ -0,0 +1,25 @@
+CXX=gcc
+CXXFLAGS= -O3 -Wall -std=gnu99
+
+INCLUDES=
+LIBS=
+
+MV=mv
+MKDIR=mkdir -p
+RM=rm -rf
+
+SRC_FILES := $(wildcard src/*.c)
+OBJ_FILES := $(addprefix src/, $(notdir $(SRC_FILES:.c=.o)))
+
+all: $(OBJ_FILES)
+	$(MKDIR) bin
+	$(CXX) $(CXXFLAGS) $(LIBS) -o bin/cointoss src/*.o
+
+src/%.o: src/%.c
+	$(CXX) $(CXXFLAGS) $(INCLUDES) -c -o $@ $<
+
+clean:
+	$(RM) src/*.o
+
+fullclean: clean
+	$(RM) bin