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  1.  
  2.  
  3. n;f(s){double z=n=0;for(;++n<999999;)z+=pow(n,-s);printf("%.5f",z/=s!=1);}
  4.  
  5.  
  6. int main( void ) 
  7. {
  8.  
  9.     f( 1 ) ;
  10.     puts( "" ) ;
  11.     f( 2 ) ;
  12.     puts( "" ) ;
  13.     f( 3 ) ;
  14.     puts( "" ) ;
  15.     f( 4 ) ;
  16.     puts( "" ) ;
  17.     f( 8 ) ;
  18.     puts( "" ) ;
  19.     f( 19 ) ;
  20.     puts( "" ) ;
  21.  
  22. }
Success #stdin #stdout 0.29s 9432KB
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stdin
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Standard input is empty
stdout
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inf
1.64493
1.20206
1.08232
1.00408
1.00000
https://ideone.com/vt8QIv
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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