Advertisement
Guest User

roflan

a guest
Dec 14th, 2019
97
0
Never
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 0.52 KB | None | 0 0
  1. #include <iostream>
  2. #include <math.h>
  3. #include <string>
  4. #include <algorithm>
  5.  
  6. using namespace std;
  7.  
  8.  
  9. int main() {
  10.  
  11.     int t;
  12.  
  13.     cin >> t;
  14.  
  15.     for (int i = 0; i < t; i++) {
  16.         int n;
  17.         cin >> n;
  18.  
  19.         int c = n;
  20.  
  21.         int dig = 0;
  22.  
  23.         while (c > 0) {
  24.             dig += 1;
  25.             c /= 10;
  26.         }
  27.  
  28.         int ans = (dig - 1) * 9;
  29.  
  30.         string s;
  31.  
  32.         for (int ii = 0; ii < dig; ii++)
  33.             s.push_back('1');
  34.  
  35.         int os = stoi(s);
  36.         int k = os;
  37.  
  38.         while (os <= n) {
  39.             ans += 1;
  40.             os += k;
  41.         }
  42.  
  43.         cout << ans << endl;
  44.     }
  45.  
  46.     return 0;
  47. }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement