٥륯åĥ
225533
2ޤ52ġ3Ǥդ15̤ꡣ
630ڡ 0:04:35 51646
ǯ
900θĿ90θĿ
3*3*32*3*215
630ڡ 0:13:06 51649
Ȥ
Basic
9/4=2.251̤­

FOR a=1 TO 10^2
FOR b=1 TO 99
IF 9/a=b/100 THEN LET s=s+1
NEXT b
NEXT a
PRINT s+1
END

f9ơ15()
˭ԡ 630ڡ 0:13:11 MAIL:fttnm528@ybb.ne.jp 51650
ߤ
ʤΤǡ
ȡѤˤʤФ褤
ѡᳰѡȤΤϻǣϣˤǤä

ᣲߣߣߣߣߣ
ꡢϣߣߣᣲġ
ܿȡ־裲̤ޤǡפȤƤϤޤʤΤ
դƽ񤭽ФУϣˡ
630ڡ 0:19:55 51651
ǯ
900θĿ90θĿ
3*3*32*3*215
630ڡ 0:20:34 51652
Ȥ
#51650
ߤޤ󥳡ɤְ㤨
>9/4=2.251̤­
ϤʤƤ褯ɤ

FOR a=1 TO 1000
FOR b=1 TO 900
IF MOD(b,10)=0 THEN GOTO 10
IF 9/a=b/100 THEN LET s=s+1
10 NEXT b
NEXT a
PRINT s
END

f9ơ15()
˭ԡ 630ڡ 0:39:35 MAIL:fttnm528@ybb.ne.jp 51653
Ȥ
#51653
15̤꤬Ƥ뤫ɤʲѹ

FOR a=1 TO 1000
FOR b=1 TO 900
IF MOD(b,10)=0 THEN GOTO 10
IF 9/a<>b/100 THEN GOTO 10
LET s=s+1
PRINT "No";s;"//";a;",";b
10 NEXT b
NEXT a
END

f9

No 1 // 4 , 225
No 2 // 12 , 75
No 3 // 20 , 45
No 4 // 25 , 36
No 5 // 36 , 25
No 6 // 50 , 18
No 7 // 60 , 15
No 8 // 75 , 12
No 9 // 100 , 9
No 10 // 150 , 6
No 11 // 180 , 5
No 12 // 225 , 4
No 13 // 300 , 3
No 14 // 450 , 2
No 15 // 900 , 1
˭ԡ 630ڡ 0:52:54 MAIL:fttnm528@ybb.ne.jp 51654
⡼ޥ
ǤΤ...Ť٤ ^^;

b/109/x=a/100
x90Ǥʤ900ǤФΤǤ...
90=2*5*3^22*2*3=12
900=3^2*2^2*5^23*3*3=27
so...27-12=15

ǯͤƱǤ Orz&#12316;
630ڡ 1:05:07 51655
ֿء׾ι
9/100ȤϺǹΥҥȤǤ
Ǥ֤ޤʡ/`
630ڡ 1:44:35 51656
Ȥ
#51654

2ѿ®٤2ä⤫äƤޤΤ
ѿѹޤ!!

PRINT TIME$
FOR a=1 TO 900
IF IP(900/a)<=0 OR FP(900/a)<>0 OR MOD(IP(900/a),10)=0 THEN GOTO 10
LET s=s+1
PRINT "No";s;"//";a;",";9/a
10 NEXT a
PRINT TIME$
END

f9

05:35:48
No 1 // 4 , 2.25
No 2 // 12 , .75
No 3 // 20 , .45
No 4 // 25 , .36
No 5 // 36 , .25
No 6 // 50 , .18
No 7 // 60 , .15
No 8 // 75 , .12
No 9 // 100 , .09
No 10 // 150 , .06
No 11 // 180 , .05
No 12 // 225 , .04
No 13 // 300 , .03
No 14 // 450 , .02
No 15 // 900 , .01
05:35:48

ΤΤ100ܤ®ʤäȻפޤ!!
˭ԡ 630ڡ 5:38:59 MAIL:fttnm528@ybb.ne.jp 51657
Ȥ(8)
Ȥơ10010ܿǤʤǤФ褤
ξդ100ܤơ900100

90027Ĥ뤦10ܿ12ĤΤǡ
10ܿǤʤ900ϡ27-1215ġ
̸޻ԡ 630ڡ 21:54:26 51658
ޤ륱
p (1..900).to_a.map{|i|(9.0/i).to_s.size}.count(4)
630ڡ 23:07:09 MAIL:take4310@mobile.email.ne.jp 51659
Mr.ǥ
A900Ǥ
900/A(3^2x2^2x5^2)/A
ʬ25Ĥ鿲Ф褤
Σǰʬ򤷤Ȥ^2ޤ52ޤФ褤
900Τ
(22ޤ)+(52ޤ)(2252ޤ
....(3x3+3x3)-3=15ʸġ
Ȥޤ
깹ľ˿äƤޤ٤ޤ

ʤߤ(1214)ϡѥ󤬸ξǵǽʤʤ괹˻
֤Ǥ黲ð³ƤϢ³ڤ
Ƥޤ1215󤫤ޤϢ³ĩ魯ȤȤʤޤ
71ʶ 0:13:44 51660
SECOND
FOR i=1 TO 1000
IF FP(9/i*100)=0 AND FP(9/i*10)<>0 THEN LET n=n+1
NEXT i
PRINT n ! BASIC
71ʶ 10:06:15 51661
ֿء׾ι
ˤäơңǤ
p (1..1000).map{|x|9/x.to_f}.count{|y|y==y.truncate(2)&&y!=y.truncate(1)}
74ʷ 10:03:56 51662
ֿء׾ι
#51659 ޤ륱󤵤
ǥҼڤơûǤ
p (1..900).count{|x|(9.0/x).to_s.size==4}

餷ޤ
74ʷ 11:25:57 51663
ޤ륱
#51663
ǹʤäƤ count 󤸤ʤcount ˾դäƤ⤢Ǥ͡ʤۤ,".to_a.map" ʬûǤƤޤ
ͤˤʤޤ
76ʿ 11:54:06 MAIL:take4310@mobile.email.ne.jp 51664

٤ΤȤ䤱
ְä촪㤤ƤäƸ¿
Ԥȯɽ24ָˤ٤
夹򤫤狼ȤΤ褦ʤ櫓ͤ
ΤˤǽФԶ礬ʤä긡ڤƤɬפޤ...
711ʷ 3:03:03 51665

ʤߤ(1214)ϡѥ󤬸ξǵǽʤʤ괹˻
֤Ǥ黲ð³ƤϢ³ڤ
Ƥޤ1215󤫤ޤϢ³ĩ魯ȤȤʤޤ

𤤤ʤ
θ
711ʷ 3:06:24 51670

ѥ󤢤ʤ饹ޥۤǤä
711ʷ 3:07:52 51671
ߥȤ
ͤϽƱ礷ƤԷǼĤޤ
βʤɤޤɤɡ
⡢ĥޤ
711ʷ 21:18:13 MAIL:manato-yo-da@jcom.zaq.ne.jp 51672