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  1. #include <iostream>
  2.  
  3. int main()
  4. {
  5.     double sum = 9.857, temp = 0;
  6.     std::cout.precision(4);
  7.     std::cout << "Value = " << sum << std::endl;
  8.     std::cout.precision(3);
  9.     std::cout << "Value = " << sum << std::endl;
  10.     std::cout.precision(2);
  11.     std::cout << "Value = " << sum << std::endl;
  12.     return 0;
  13. }
Success #stdin #stdout 0s 3340KB
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stdin
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Standard input is empty
stdout
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Value = 9.857
Value = 9.86
Value = 9.9
https://ideone.com/dyuGFd
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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