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  1. #include <iostream>
  2. #include <utility>
  3. #include <boost/multiprecision/cpp_int.hpp>
  4.  
  5. using boost::multiprecision::cpp_int;
  6. using namespace std;
  7. int main()
  8. {
  9.     cpp_int a,sum;
  10.     cin >> a;
  11.     sum=0;
  12.     while(a>0){
  13.         sum+=a%10;
  14.         a/=10;        
  15.     }
  16.     cout << sum;
  17. }
  18.  
Success #stdin #stdout 0s 3528KB
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stdin
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123456789123456789123456789123456789123456789123456789123456789
stdout
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315
https://ideone.com/NOwIU2
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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