Created
January 8, 2022 02:18
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| epsilon = 1e-6 | |
| def check_kmb(s: str): | |
| result = eval(s) | |
| if (686+epsilon) > result and result > (686-epsilon): | |
| print(s, '=', result) | |
| def func(s: str, n: int): | |
| if n == 10: | |
| check_kmb(s) | |
| return | |
| for op in ['', '+', '-', '*', '/']: | |
| func(s + op + str(n), n + 1) | |
| func('1', 2) |
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| 123-4-56+7*89 = 686 | |
| 12*3+4-56+78*9 = 686 | |
| 1+23+45-6+7*89 = 686 | |
| 1+23*4-5*6+7*89 = 686 | |
| 1+2-3+4-5+678+9 = 686 | |
| 1+2*345+67-8*9 = 686 | |
| 1+2*34*5+6*7*8+9 = 686 | |
| 1-23-4+56/7*89 = 686.0 | |
| 1-2+34+5*6+7*89 = 686 | |
| 1*23-45+6+78*9 = 686 | |
| 1*2+3*4-5*6+78*9 = 686 | |
| 1*2-3-4-5-6+78*9 = 686 | |
| 1*2*345+6+7-8-9 = 686 |
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