chapter3

test/test2.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main() {
+int n = 4, a = 1;
+int i, c;
+	for (i = 1; i <=n; i++) {
+		for (c = 1; c <= i; c++) {
+			printf("%d", a);
+			a++;
+		}
+		printf("\n");
+	}
+}