2013은 0,1,2,3이 모두들었습니다.
1)이수를 한번씩만 써서 100이하의 숫자만들어 보세요.
사칙연산기호,제곱,계승,괄호를 쓴다면 몇가지가 가능할까요?
2) 몇가지 새로운 기호를 쓴다면 1부터 100까지 만들수 있습니다. 만들어 보세요.
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몇가지 새로운 기호란 !!와 !!!와 ₩입니다.
n이 홀수일때 n!!=n*(n-2)*(n-4)*...*1 ,
n이 짝수이면 n!!=n*(n-2)*(n-4)*...*2 입니다.
n나누기3의 나머지가1이면 n!!!=n*(n-3)*(n-6)*...*1이고
나머지가 2면 ...*2 3이면...*3입니다,
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n!이 n!번 나옵니다.n이 0이면 !! !!! ￦모두 1입니다.
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어렵긴 하네요. (한 40까지 한 거 있었는데 다 날라갔어요ㅠㅠ)
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근데 혹시 1,3을 이용해 13으로 만드는게 가능한가요? (그리고 \은 3\만 해도 넘 커지는데...)
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됩니다.
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안보입니다 .아인수타인님
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아, 그쪽 컴에선 안보이나요...? 알겠습니다. 텍스트에다 쓰겠습니다.
1=1+0*2*3
2=2+0*1*3
3=3+0*2*1
4=1+3+0*2
5=3+2+0*1
6=3+2+1+0
7=3*2+1+0
8=(3+1)*2+0
9=3!+2+1+0
10=(3+1)!!+2+0
11=13-2+0
12=12*1+0
13=13*1+0
14=12+3-0!
15=2+13+0
16=20-3-1
17=20-3*1
18=20-3+1
19=21-3+0!
20=(3+2)!!!+10
21=21+3*0
22=20+3-1
23=23*1-0
24=20+3+1
25=23+1+0!
26=13*2-0
27=30-2-1
28=30-2*1
29=30-2+1
30=30*(2-1)
31=32-1-0
32=32*1-0
33=32+1-0
34=102/3
35=
36=12*3+0
37=2\*10-3
38=(3*2)!!-10
39=
40=20*(3-1)
41=
42=32+10
43=2\*10+3
44=
45=
46=
47=(3*2)!!-1-0
48=(3*2)!!*1-0
49=(3*2)!!+1-0
50=(3+2)*10
51=20+31
52=2\*13-0
53=2\*13+0!
54=
55=
56=
57=
58=
59=30*2-1
60=30*2*1
61=30*2+1
62=21*3-0!
63=21*3-0
64=21*3+0!
65=130/2
66=
67=201/3
68=
69=
70=(2\)!*3-1-0!
71=(2\)!*3-1-0
72=(2\)!*3*1-0
73=(2\)!*3+1-0
74=(2\)!*3+1+0!
75=
76=
77=
78=
79=
80=(3+1)*20
81=
82=
83=
84=
85=
86=
87=
88=
89=
90=(2+1)*30
91=
92=
93=
94=
95=
96=
97=
98=
99=102-3
100=(3+2)!!!*10
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