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  1. #include <iostream>
  2. #include <string>
  3. #include <climits>
  4. #include <algorithm>
  5. #include <cmath>
  6.  
  7. using namespace std;
  8.  
  9. void solve() {
  10.     string s;
  11.     cin >> s;
  12.     int n = s.size();
  13.     double min_cost = LONG_MAX;
  14.     int min_len = 0;
  15.  
  16.     // Check all possible substrings
  17.     for (int i = 0; i < n; ++i) {
  18.         for (int j = i; j < n; ++j) {
  19.             string current_str = s.substr(i, j - i + 1);
  20.             long num = 0;
  21.             int sum = 0;
  22.             for (char c : current_str) {
  23.                 num = num * 10 + (c - '0');
  24.                 sum += (c - '0');
  25.             }
  26.             double cost = (double)num / sum;
  27.             if (cost < min_cost) {
  28.                 min_cost = cost;
  29.                 min_len = current_str.size();
  30.             } else if (cost == min_cost) {
  31.                 if (current_str.size() > min_len) {
  32.                     min_len = current_str.size();
  33.                 }
  34.             }
  35.         }
  36.     }
  37.     cout << n - min_len << endl;
  38. }
  39.  
  40. int main() {
  41.     int t;
  42.     cin >> t;
  43.     while (t--) {
  44.         solve();
  45.     }
  46.     return 0;
  47. }
Success #stdin #stdout 0s 5288KB
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https://ideone.com/V7qN7j
language:
C++ (gcc 8.3)
created:
4 days ago
visibility:
public

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