算24”變成“算1~n -- Detail Answer: f(1 ,2 ,5 ,8 )=52

f(1 ,2 ,5 ,8 )=52 :
1=5*2-(8+1) 2=(8+1)-(5+2) 3=(8*2-1)/5 4=(5+1)*2-8 5=(8+2*1)-5
6=(8+(2+1))-5 7=5*(2+1)-8 8=8/2+(5-1) 9=(8-1)*2-5 10=(8*2-1)-5
11=8*2-5*1 12=(8*2+1)-5 13=(8+1)*2-5 14=(8-1)+(5+2) 15=8+(5+2)*1
16=(8+5)+(2+1) 17=5*2+(8-1) 18=2/1/5+8 19=8*(2+1)-5 20=5/2/1/8
21=8*2+5*1 22=(8*2+1)+5 23=5*(2+1)+8 24=8*(5+1)/2 25=(8+5)*2-1
26=(8+5)/1/2 27=(8+5)*2+1 28=8*(5/2+1) 29=8*(2+1)+5 30=8*(5-1)-2
31=(8-2)*5+1 32=8*((5+1)-2) 33=(8-1)*5-2 34=8*(5-1)+2 35=((8+1)-2)*5
36=8*(5-1/2) 37=(8*5-1)-2 38=(8*5-2)*1 39=(8*5+1)-2 40=5/(2-1)/8
41=(8*5-1)+2 42=(8*5+2)*1 43=(8*5+1)+2 44=8*(5+1/2) 45=((8-1)+2)*5
46=8*(5+1)-2 47=(8+1)*5+2 48=8*((5+2)-1) 49=(8-1)*(5+2) 50=8*(5+1)+2
51=(8+2)*5+1

所有跟帖： 

• Correct：算24”變成“算1~n -- Detail Answer: f(1 ,2 ,5 ,8 )=52 -Blue_Diamond- ♂ (998 bytes) () 07/22/2010 postreply 18:17:36

• Better Answer to f(1 ,2 ,5 ,8 )=52 -Blue_Diamond- ♂ (979 bytes) () 07/22/2010 postreply 18:30:29

• Great!You has varified f(1 ,2 ,5 ,8 )>=52,though I -jinjing- ♀ (30 bytes) () 07/22/2010 postreply 18:53:57

• too much work! -皆兄弟也- ♂ (0 bytes) () 07/23/2010 postreply 00:55:54

• 算24”變成“算1~n -- All Answers and Simple to Read -Blue_Diamond- ♂ (5836 bytes) () 07/23/2010 postreply 17:31:24

• 數學病,...題可改為算0~n,您大多記錄一樣,証明等號. -jinjing- ♀ (85 bytes) () 07/24/2010 postreply 06:02:34

• 並不限製在1~13之內，其實有 f(2,3,4,22)=53 -被迫注冊的- ♂ (24 bytes) () 07/26/2010 postreply 14:30:00

• I guess the result was from computer.Mr.Blue,did you use -jinjing- ♀ (230 bytes) () 07/27/2010 postreply 14:59:50

• 嗬嗬，這個確實是編程算出來的 -被迫注冊的- ♂ (92 bytes) () 07/28/2010 postreply 13:20:06