solve by Halsted metrics

Example Consider the following C program: main() { int a, b, c, avg; scanf("%d %d %d", &a, &b, &c); avg = (a + b + c) / 3; printf("avg = %d", avg); } The unique operators are: main, (), {}, int, scanf, &, -, +, /. printf,',', ; The unique operands are: a, b, c, avg, "%d %d %d", 3,"avg = %d" . n1 = 12, 12 = 7, n = 19 26