【筆記】1、1、4、5、1、4，四則運算，表示0~100
六個數(shù)，順序不變，可用加減乘除括號。每個舉一條。
-1 = 1+1-4+5-1*4
0 = 1+1-4+5+1-4
1 = 1*1/4*5-1/4
2 = 1-1+4-5-1+4
3 = 1+1*4-5-1+4
4 = 1+1+4-5-1+4
5 = 1+1+4-5+1*4
6 = 1+1+4+5-1-4
7 = 1+1+4+5-1*4
8 = 1+1+4+5+1-4
9 = 1+1*4*(5+1-4)
10 = 1+1+4*(5+1-4)
11 = 1-1-4-5*(1-4)
12 = 1-1+4+5-1+4
13 = 1+1*4+5-1+4
14 = 1+1+4+5-1+4
15 = 1+1+4+5+1*4
16 = 1+1+4+5+1+4
17 = 1+1+4*5-1-4
18 = 1+1+4*5-1*4
19 = 1+1+4*5+1-4
20 = 1+1*4-5*(1-4)
21 = 1+1+4-5*(1-4)
22 = 1-1*4+5*(1+4)
23 = 1-1+4*5-1+4
24 = 1+1*4*5-1+4
25 = 1+1+4*5-1+4
26 = 1+1+4+5*1*4
27 = 1+1+4*5+1+4
28 = 1-1+4+(5+1)*4
29 = 1-1+4+5*(1+4)
30 = 1+1*4+5*(1+4)
31 = 1+1+4+5*(1+4)
32 = 1-1+4*(5-1+4)
33 = 1+1*4*(5-1+4)
34 = 1+1+4*(5-1+4)
35 = 1+(1+4)*(5+1)+4
36 = 1-1+4*(5+1*4)
37 = 1+1*4*(5+1*4)
38 = 1+1+4*(5+1*4)
39 = -1+1*4*(5+1+4)
40 = 1-1+4*(5+1+4)
41 = 1+1*4*(5+1+4)
42 = 1+1+4*(5+1+4)
43 = (1+1)*4*5-1+4
44 = 1*(1+4+5+1)*4
45 = 1-1+(4+5)*(1+4)
46 = 1+1*(4+5)*(1+4)
47 = 1+1+(4+5)*(1+4)
48 = (1+1+4+5+1)*4
49 = 1-(1-4)*(5-1)*4
50 = 1*(1+4)*(5+1+4)
51 = 1+(1+4)*(5+1+4)
52 = (1+1)*4*(5+1)+4
53 無法得出（悲）
54 = (1+1+4)*(5+1*4)
55 = (1+1+4+5)*(1+4)
56 = (1+1)*(4+(5+1)*4)
57 = 1*(1-4*5)*(1-4)
58 = 1+(1-4*5)*(1-4)
59 = -1-1*4*5*(1-4)
60 = 1-1-4*5*(1-4)
61 = 1-1*4*5*(1-4)
62 = 1+1-4*5*(1-4)
63 = -1+1*4*(5-1)*4
64 = 1-1+4*(5-1)*4
65 = 1+1*4*(5-1)*4
66 = 1+1+4*(5-1)*4
67 = -1+(1+4*(5-1))*4
68 = 1*(1+4*(5-1))*4
69 = 1+(1+4*(5-1))*4
70 = -(1+(1-4)*5)*(1+4)
71 = -1-(1-4*5+1)*4
72 = (1+1)*4*(5+1*4)
73 = 1-(1-4*5+1)*4
74 = -1-1+(4*5-1)*4
75 = -1+1*(4*5-1)*4
76 = 1-1+(4*5-1)*4
77 = 1+1*(4*5-1)*4
78 = 1+1+(4*5-1)*4
79 = -1+1*4*5*1*4
80 = 1-1+4*5*1*4
81 = 1+1*4*5*1*4
82 = 1+1+4*5*1*4
83 = -1+1*(4*5+1)*4
84 = 1-1+(4*5+1)*4
85 = 1+1*(4*5+1)*4
86 = 1+1+(4*5+1)*4
87 = -1+(1+4*5+1)*4
88 = 1*(1+4*5+1)*4
89 = 1+(1+4*5+1)*4
90 = (1+1)*(4+5)*(1+4)
91 = -1-(1-4*(5+1))*4
92 = (1+1+4*5+1)*4
93 = 1-(1-4*(5+1))*4
94 = -1-1+4*(5+1)*4
95 = -1+1*4*(5+1)*4
96 = 1-1+4*(5+1)*4
97 = 1+1*4*(5+1)*4
98 = 1+1+4*(5+1)*4
99 = -1+1*4*5*(1+4)
100 = 1-1+4*5*(1+4)
101 = 1+1*4*5*(1+4)
