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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	 double y=0;
  5.     double pol=0,otr=0;
  6.     for(int i=1,z=1;i<1001;i++,z*=-1)
  7.         y+=z/(double)i;
  8.     printf("%1.22lf",y);
  9.     for(int i=1,z=1;i<1001;i+=2)
  10.         pol+=z/(double)i;
  11.     for(int i=2,z=1;i<1001;i+=2)
  12.         otr+=-1/(double)i;
  13.     printf("\n\n%1.22lf",pol+otr);
  14. 	return 0;
  15. }
  16.  
Success #stdin #stdout 0s 9424KB
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0.6926474305598222525049

0.6926474305598135927653
https://ideone.com/PfhH09
language:
C (gcc 8.3)
created:
5 years ago
visibility:
public

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