Gottfried Sequence

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Problem

Find the value of following sequence upto n terms
1 - 1/3 + 1/5 - 1/7 + 1/9 - ....

Input format:
T ( no of test cases )
n1
n2
n3
.
.
nT

Options

exec is denied

now post-mortem time, all source codes will be revealed

Sample input:_

10
84
87
78
16
94
36
87
93
50
22

Sample output:

0.782422078351511
0.78827163171926
0.782193166868439
0.769788348549357
0.782738664166981
0.778455057255894
0.78827163171926
0.788086257749869
0.780398663147753
0.774040381615911

Sample input:_

100
89384
30887
92778
36916
47794
38336
85387
60493
16650
41422
2363
90028
68691
20060
97764
13927
80541
83427
89173
55737
5212
95369
2568
56430
65783
21531
22863
65124
74068
3136
13930
79803
34023
23059
33070
98168
61394
18457
75012
78043
76230
77374
84422
44920
13785
98538
75199
94325
98316
64371
66414
3527
76092
68981
59957
41874
6863
99171
6997
97282
2306
20926
77085
36328
60337
26506
50847
21730
61314
25858
16125
53896
19583
546
98815
33368
15435
90365
44044
13751
71088
26809
17277
47179
95789
93585
5404
2652
92755
12400
99933
95061
49677
93369
47740
10013
36227
98587
48095
97540

Sample output:

0.785395366476284
0.785406257417584
0.785395468793108
0.785391391266125
0.785392932615342
0.785391642111975
0.785401091243592
0.785402296107011
0.785383148382448
0.785392127957344
0.785503961107481
0.785395386483585
0.78540180288442
0.785385700785293
0.785395606218918
0.785416114140583
0.785401267406576
0.78540116002922
0.785400966936622
0.785402648748288
0.785350197166117
0.785400784794321
0.785300811376217
0.785393733129857
0.785401963771396
0.785409774562738
0.785409098095426
0.785394324566902
0.785394788120665
0.78531844401172
0.785380216520226
0.785401296111746
0.785405511367938
0.785409005151204
0.785390603675649
0.785395616742716
0.785394091338283
0.785411708393916
0.785394830597353
0.785401366759685
0.785394883848703
0.785394932337907
0.785395202084031
0.78539259794776
0.785416299052119
0.785395626305141
0.785401487909733
0.785400813808245
0.785395620576323
0.785402047133906
0.78539439913087
0.785469045165234
0.785394877900933
0.785401787583812
0.785402333052361
0.785392193105619
0.785434590615671
0.785400684295677
0.785433892995663
0.785395593548947
0.785289750566465
0.78538621653709
0.785401406570556
0.785391281653341
0.785402306792042
0.785388731570694
0.785403080108362
0.785386658565424
0.785394086025227
0.785388495209655
0.785413667273402
0.785393524834287
0.785410929572184
0.784940288323546
0.785400693377697
0.785390671189347
0.785414360352402
0.785400929955282
0.785392487255409
0.785416343893386
0.785394646629493
0.785407488624046
0.7854126335022
0.785403462365209
0.785400773300446
0.785400834765707
0.785351901369717
0.785303894924178
0.785400858669924
0.785378002107155
0.785400665073552
0.785400793287712
0.78540319590746
0.785400840945655
0.785392926698663
0.785423130939579
0.785405064327693
0.785400699228727
0.785403361442981
0.785395600346373

Ranking

Ruby _

RankUserSizeTimeDateStatistics
1leonid680.50912013/02/08 12:23:570B / 23B / 42B

Perl _

RankUserSizeTimeDateStatistics
1teebee560.88802013/02/09 09:30:510B / 21B / 35B
2brx601.30512013/02/19 21:33:110B / 23B / 35B
3primo611.50902013/02/08 17:21:470B / 25B / 36B

Python _

RankUserSizeTimeDateStatistics
1leonid830.41712013/02/08 08:14:130B / 45B / 34B
2clock830.92002013/02/08 08:58:080B / 45B / 33B
3primo830.41502013/02/08 18:23:050B / 45B / 34B
4hallvabo980.44922013/02/06 19:21:130B / 53B / 41B

Io _

RankUserSizeTimeDateStatistics
1pooq1471.84522013/03/02 08:33:250B / 99B / 40B

Lua _

RankUserSizeTimeDateStatistics
1clock(pooq)1090.09922013/03/01 19:18:000B / 60B / 43B
2pooq1110.10732013/03/01 18:08:270B / 61B / 42B

BASIC _

RankUserSizeTimeDateStatistics
1pooq1080.22582013/03/01 10:25:470B / 66B / 30B

Language Ranking_

RankLangUserSizeScore
1Perlteebee5610000
2Rubyleonid688235
3Pythonleonid836746
4BASICpooq1085185
5Luaclock(pooq)1095137
6Iopooq1473809

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