Added source.

.gitignore

@@ -0,0 +1,2 @@
+# Ignore binaries
+bin/

Makefile

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+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

src/main.c

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+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+char version[7] = "v0.1";
+
+int main(int argc, char **argv) {
+	printf("Welcome to Coin Toss %s\n", version);
+	if(argc < 2 || argc > 3) {
+		printf("Usage: %s [trials]\n", argv[0]);
+		return 1;
+	}
+
+	int trials = atoi(argv[1]);
+	int heads = 0;
+	int tails = 0;
+
+	srand(time(NULL));
+
+	for(int i = 0; i < trials; i++) {
+		int r = rand() % 100 + 1;
+		if(r <= 50) heads++;
+		else tails++;
+	}
+
+	printf("Done.\n");
+	printf("Heads: %i\n", heads);
+	printf("Tails: %i\n", tails);
+	return 0;
+}