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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define endl "\n"
  4. #define F first
  5. #define S second
  6. #define loop(a,n) for(int i=a; i<=n ; i++)
  7. #define TIME (1.0 * clock() / CLOCKS_PER_SEC)
  8. #define NAME "B99E"
  9. using namespace std;
  10.  
  11. int dem(ll x) {
  12.     return to_string(x).size();
  13. }
  14.  
  15. int main(){
  16.     ios_base::sync_with_stdio(0);
  17.     cin.tie(0); cout.tie(0);
  18.     //freopen(NAME".INP", "r", stdin);
  19.     //freopen(NAME".OUT", "w", stdout);
  20.     int b, e;
  21.     while (cin >> b >> e) {
  22.         bool tim = false;
  23.         for (int len = 1; len <= 50; len++) {
  24.             ll pow10 = 1;
  25.             for (int i = 0; i < len + 1; i++) pow10 *= 10;
  26.             ll tu = b * pow10 + e;
  27.             if (tu % 89 != 0) continue;
  28.             ll n = tu / 89;
  29.             if (dem(n) == len) {
  30.                 cout << n << endl;
  31.                 tim = true;
  32.                 break;
  33.             }
  34.         }
  35.         if (!tim) cout << 0 << endl;
  36.     }
  37.     return 0;
  38. }
  39.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/ffFqxr
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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