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  1. # include <iostream>
  2. # include <cmath>
  3. # include <iomanip>
  4. # include <fstream>
  5. using namespace std;
  6. int main()
  7. {
  8. int n = 16;
  9. int limit = 10;
  10. int step = 1;
  11. int total = 0;
  12. for ( int i = 1; i<=n ;++i ){
  13.     if (i==limit){
  14.         limit*=10;
  15.         step+=1;
  16.     }
  17.     total += step;
  18. }
  19. cout << total << endl;
  20.  
  21.     return 0;
  22. }
Success #stdin #stdout 0s 3140KB
comments ()
stdin 
Standard input is empty
stdout 
23
https://ideone.com/xoFQwn
# include <iostream>
# include <cmath>
# include <iomanip>
# include <fstream>
using namespace std;
int main()
{
int limit = 10;
int n = 16;
int total = 0;
for ( int i = 1; i<=n ;++i ){
if (i==limit){
limit*=10;
n+=1;
}
total += n;
}
cout << total << endl;

return 0;
}
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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