recursion

practice/lc_recursion.c

@@ -0,0 +1,19 @@
+#include <stdio.h>
+
+unsigned int multiply(unsigned int x, unsigned int y)
+{
+    if (x == 1)
+        return y;
+    
+    if (x > 1)
+        return y + multiply(x - 1, y);
+
+    return 0;
+}
+
+int main()
+{
+    printf("3 times 100 is %d", multiply(3, 100));
+
+    return 0;
+}