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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| ( ) × 2 = 12 | 7 × ( ) = 7 | 5 × ( ) = 30 | ( ) × 1 = 7 |
| 1 × ( ) = 8 | ( ) × 3 = 27 | ( ) × 6 = 24 | ( ) × 1 = 7 |
| 5 × ( ) = 10 | ( ) × 3 = 3 | ( ) × 9 = 72 | 8 × ( ) = 72 |
| 8 × ( ) = 56 | 3 × ( ) = 6 | 9 × ( ) = 27 | ( ) × 9 = 27 |
| 2 × ( ) = 18 | 3 × ( ) = 15 | 2 × ( ) = 6 | 3 × ( ) = 9 |
| 4 × ( ) = 16 | 5 × ( ) = 20 | ( ) × 2 = 14 | ( ) × 8 = 32 |
| ( ) × 6 = 42 | 4 × ( ) = 12 | 9 × ( ) = 36 | ( ) × 4 = 28 |
| ( ) × 2 = 14 | 3 × ( ) = 3 | ( ) × 7 = 35 | 9 × ( ) = 18 |
| 7 × ( ) = 7 | 1 × ( ) = 4 | 2 × ( ) = 14 | 1 × ( ) = 2 |
| 7 × ( ) = 14 | ( ) × 6 = 54 | 1 × ( ) = 4 | 9 × ( ) = 54 |
| ( ) × 6 = 24 | ( ) × 9 = 9 | 3 × ( ) = 15 | ( ) × 5 = 35 |
| ( ) × 4 = 36 | 6 × ( ) = 24 | ( ) × 2 = 6 | 7 × ( ) = 7 |
| 7 × ( ) = 21 | ( ) × 3 = 18 | ( ) × 2 = 8 | 9 × ( ) = 36 |
| 6 × ( ) = 6 | 3 × ( ) = 9 | 5 × ( ) = 15 | ( ) × 7 = 63 |
| 4 × ( ) = 36 | ( ) × 7 = 56 | 9 × ( ) = 9 | ( ) × 3 = 3 |
| 8 × ( ) = 64 | 1 × ( ) = 2 | ( ) × 9 = 45 | 8 × ( ) = 64 |
| 5 × ( ) = 25 | ( ) × 9 = 63 | 2 × ( ) = 4 | ( ) × 2 = 10 |
| ( ) × 6 = 30 | 5 × ( ) = 30 | ( ) × 5 = 40 | 2 × ( ) = 2 |
| ( ) × 2 = 8 | ( ) × 1 = 8 | 5 × ( ) = 35 | ( ) × 8 = 8 |
| ( ) × 2 = 14 | 1 × ( ) = 6 | ( ) × 7 = 42 | 4 × ( ) = 4 |
| ( ) × 3 = 21 | 9 × ( ) = 72 | 4 × ( ) = 32 | 1 × ( ) = 2 |
| 6 × ( ) = 42 | 5 × ( ) = 15 | ( ) × 2 = 16 | ( ) × 4 = 12 |
| ( ) × 4 = 4 | 1 × ( ) = 9 | ( ) × 5 = 40 | 8 × ( ) = 8 |
| ( ) × 9 = 81 | ( ) × 2 = 4 | ( ) × 2 = 10 | ( ) × 4 = 24 |
| 3 × ( ) = 15 | 1 × ( ) = 7 | 1 × ( ) = 7 | 4 × ( ) = 4 |
消防员爸爸