How many different values are there in 1087 [PAT (Basic Level) Practice (Chinese)]

How many different values ​​are there in 1087 [PAT (Basic Level) Practice (Chinese)]

Original question link : How many different values ​​does 1087 have (pintia.cn)

1 Introduction

• PAT (Level B) 2018 Autumn Examination Question 2

• Score: 20

• Difficulty: ⭐️⭐️⚝⚝⚝

• Knowledge points:

  • C programming/loop control/for
  • C Programming/Array/One-Dimensional Array

• operating restrictions

  Code length limit	16 KB
  time limit	150 ms
  memory limit	64 MB

2.Title description

When the natural number nn