跟着消防员爸爸学习C++编程与算法（请备注算法学习）
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| ( ) × 8 = 64 | 1 × ( ) = 6 | ( ) × 7 = 7 | 9 × ( ) = 63 |
| ( ) × 1 = 3 | ( ) × 4 = 28 | ( ) × 6 = 36 | ( ) × 1 = 1 |
| 6 × ( ) = 18 | 6 × ( ) = 24 | 1 × ( ) = 3 | 5 × ( ) = 20 |
| ( ) × 9 = 63 | 7 × ( ) = 35 | 3 × ( ) = 9 | 9 × ( ) = 27 |
| 7 × ( ) = 28 | ( ) × 1 = 6 | ( ) × 8 = 24 | 9 × ( ) = 9 |
| 6 × ( ) = 6 | ( ) × 9 = 81 | 9 × ( ) = 18 | 4 × ( ) = 8 |
| ( ) × 4 = 4 | ( ) × 9 = 72 | 7 × ( ) = 56 | 2 × ( ) = 14 |
| 4 × ( ) = 24 | ( ) × 4 = 12 | 6 × ( ) = 54 | ( ) × 1 = 1 |
| ( ) × 1 = 1 | 1 × ( ) = 1 | 3 × ( ) = 9 | ( ) × 7 = 7 |
| ( ) × 8 = 24 | ( ) × 2 = 4 | ( ) × 4 = 20 | 1 × ( ) = 8 |
| 5 × ( ) = 45 | ( ) × 9 = 36 | 8 × ( ) = 40 | 6 × ( ) = 48 |
| 2 × ( ) = 8 | ( ) × 2 = 4 | 6 × ( ) = 42 | 2 × ( ) = 10 |
| 6 × ( ) = 48 | 9 × ( ) = 9 | ( ) × 4 = 20 | 2 × ( ) = 14 |
| ( ) × 9 = 45 | 4 × ( ) = 12 | 7 × ( ) = 14 | 5 × ( ) = 5 |
| 1 × ( ) = 8 | ( ) × 4 = 4 | ( ) × 1 = 6 | ( ) × 6 = 42 |
| 9 × ( ) = 45 | 2 × ( ) = 8 | 9 × ( ) = 27 | ( ) × 3 = 15 |
| 8 × ( ) = 8 | ( ) × 6 = 54 | ( ) × 3 = 12 | 7 × ( ) = 49 |
| ( ) × 6 = 36 | 2 × ( ) = 2 | ( ) × 6 = 42 | ( ) × 9 = 63 |
| ( ) × 5 = 35 | ( ) × 1 = 8 | ( ) × 8 = 16 | 9 × ( ) = 45 |
| 2 × ( ) = 18 | ( ) × 3 = 9 | 5 × ( ) = 15 | ( ) × 7 = 42 |
| 9 × ( ) = 45 | 4 × ( ) = 8 | 6 × ( ) = 42 | 5 × ( ) = 30 |
| ( ) × 4 = 28 | ( ) × 3 = 9 | 3 × ( ) = 6 | ( ) × 2 = 10 |
| 1 × ( ) = 5 | ( ) × 9 = 27 | ( ) × 5 = 5 | ( ) × 8 = 48 |
| 2 × ( ) = 4 | 3 × ( ) = 27 | 3 × ( ) = 9 | 3 × ( ) = 21 |
| 5 × ( ) = 20 | 9 × ( ) = 63 | 8 × ( ) = 32 | ( ) × 2 = 18 |
消防员爸爸