---
# System prepended metadata

title: 染色體斬擊後遺症
tags: [Day2]

---

>author: Utin

## Question
托斯跟德瑞克大戰時，為了應對德瑞克的染色體斬擊，托斯也抽出了一條染色體出來應戰，然而此舉卻對他造成了不可挽回的傷害。托斯在接受治療後積極復健，今天復健師要托斯背出乘法表，但托斯卻怎麼也背不起來，可以請你給托斯一點提示嗎？

### Input
輸入一個整數N

### Output
輸出請依範例輸出NN乘法表
最後請記得輸出'\n'

### Constraint
1 <= N <= 9

### Sample Input
```=
5
```
```=
9
```

### Sample Output
```=
1 * 1 =  1 | 2 * 1 =  2 | 3 * 1 =  3 | 4 * 1 =  4 | 5 * 1 =  5
1 * 2 =  2 | 2 * 2 =  4 | 3 * 2 =  6 | 4 * 2 =  8 | 5 * 2 = 10
1 * 3 =  3 | 2 * 3 =  6 | 3 * 3 =  9 | 4 * 3 = 12 | 5 * 3 = 15
1 * 4 =  4 | 2 * 4 =  8 | 3 * 4 = 12 | 4 * 4 = 16 | 5 * 4 = 20
1 * 5 =  5 | 2 * 5 = 10 | 3 * 5 = 15 | 4 * 5 = 20 | 5 * 5 = 25

```
```=
1 * 1 =  1 | 2 * 1 =  2 | 3 * 1 =  3 | 4 * 1 =  4 | 5 * 1 =  5 | 6 * 1 =  6 | 7 * 1 =  7 | 8 * 1 =  8 | 9 * 1 =  9
1 * 2 =  2 | 2 * 2 =  4 | 3 * 2 =  6 | 4 * 2 =  8 | 5 * 2 = 10 | 6 * 2 = 12 | 7 * 2 = 14 | 8 * 2 = 16 | 9 * 2 = 18
1 * 3 =  3 | 2 * 3 =  6 | 3 * 3 =  9 | 4 * 3 = 12 | 5 * 3 = 15 | 6 * 3 = 18 | 7 * 3 = 21 | 8 * 3 = 24 | 9 * 3 = 27
1 * 4 =  4 | 2 * 4 =  8 | 3 * 4 = 12 | 4 * 4 = 16 | 5 * 4 = 20 | 6 * 4 = 24 | 7 * 4 = 28 | 8 * 4 = 32 | 9 * 4 = 36
1 * 5 =  5 | 2 * 5 = 10 | 3 * 5 = 15 | 4 * 5 = 20 | 5 * 5 = 25 | 6 * 5 = 30 | 7 * 5 = 35 | 8 * 5 = 40 | 9 * 5 = 45
1 * 6 =  6 | 2 * 6 = 12 | 3 * 6 = 18 | 4 * 6 = 24 | 5 * 6 = 30 | 6 * 6 = 36 | 7 * 6 = 42 | 8 * 6 = 48 | 9 * 6 = 54
1 * 7 =  7 | 2 * 7 = 14 | 3 * 7 = 21 | 4 * 7 = 28 | 5 * 7 = 35 | 6 * 7 = 42 | 7 * 7 = 49 | 8 * 7 = 56 | 9 * 7 = 63
1 * 8 =  8 | 2 * 8 = 16 | 3 * 8 = 24 | 4 * 8 = 32 | 5 * 8 = 40 | 6 * 8 = 48 | 7 * 8 = 56 | 8 * 8 = 64 | 9 * 8 = 72
1 * 9 =  9 | 2 * 9 = 18 | 3 * 9 = 27 | 4 * 9 = 36 | 5 * 9 = 45 | 6 * 9 = 54 | 7 * 9 = 63 | 8 * 9 = 72 | 9 * 9 = 81

```

## 作法
雙重迴圈

## 常見問題
- scanf 記得取址
- 注意最後一行後面緊接換行，不要輸出空格

## 解法

```c=
#include <stdio.h>

int main() {
    int n;
    scanf("%d", &n);
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            printf("%d * %d = %2d", j, i, i * j);
            printf(j == n ? "\n" : " | ");
        }
    }
}
```
