2019-09-27 in class

swap.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+void swap(int* a, int* b) {
+	*a = *a ^ *b;
+	*b = *b ^ *a;
+	*a = *a ^ *b;
+}
+
+int main() {
+	int a = 3, b = 5;
+	swap(&a, &b);
+	printf("%d %d", a, b);
+}
+