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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int moves(string s, char d1, char d2) {
  5.     long long n = s.length();
  6.     int idx2 = -1, idx1 = -1; 
  7.  
  8.     for (int i = n - 1; i >= 0; i--) {
  9.         if (s[i] == d2) {
  10.             idx2 = i;
  11.             break;
  12.         }
  13.     }
  14.  
  15.     if (idx2 == -1) return 100000; 
  16.  
  17.     for (int i = idx2 - 1; i >= 0; i--) {
  18.         if (s[i] == d1) {
  19.             idx1 = i;
  20.             break;
  21.         }
  22.     }
  23.  
  24.     if (idx1 == -1) return 100000;
  25.  
  26.  
  27.     return (int)(n - idx1 - 2);
  28. }
  29.  
  30. void solve() {
  31.     string n;
  32.     cin >> n;
  33.  
  34.     int ans = 100000; 
  35.  
  36.     ans = min(ans, moves(n, '0', '0'));
  37.     ans = min(ans, moves(n, '2', '5'));
  38.     ans = min(ans, moves(n, '5', '0'));
  39.     ans = min(ans, moves(n, '7', '5'));
  40.  
  41.     cout << ans << endl;
  42. }
  43.  
  44. int main() {
  45.  
  46.     int tc;
  47.     cin >> tc;
  48.  
  49.     while (tc--) {
  50.         solve();
  51.     }
  52.  
  53.     return 0;
  54. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
5
100
71345
3259
50555
2050047
stdout 
0
3
1
3
2
https://ideone.com/8XW9qY
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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