Remade because I kinda deleted the old, perfect version

1 files changed, 29 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..7e289a3
--- /dev/null
+++ b/main.c
@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+void PrintHelp(void) {
+    printf("Usage: collatz <number>"
+           "\nMade by samuel@yakubos.org\n\n");
+}
+
+int main(int argc, char *argv[]) {
+    if ( argc < 2 || argc > 2) {
+        PrintHelp();
+        return 1;
+    }
+    char *endptr;
+    long int num;
+    int  steps = 0;
+    num = strtol(argv[1], &endptr, 10);
+
+    printf("%li\n", num);
+    while ( num > 1 ) {
+        num = ( num & 1 ) ? num * 3 + 1 : num / 2;
+        printf("%li\n", num);
+        steps++;
+    }
+
+    printf("%s took %d steps\n", argv[1], steps);
+    
+}
+