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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     const vector<string> ans = {"NO","YES"};
  6.     const auto expected = [&](int N) {
  7.         int parity, count[2] = {};
  8.         for (auto digit: to_string(N))
  9.             ++count[parity = (digit-'0')&1];
  10.         return ans[count[parity] > 1]; };
  11.     const auto buggy = [&](int N) {
  12.         enum {NO,YES};
  13.         if (N == 10)
  14.             return ans[NO];
  15.         const auto parity = [&](int x) { return x%2; };
  16.         for (int a, b, div = 10; N/div > 0; div *= 10)
  17.             if (a = N/div, b = N%div, a == 0 or b == 0)
  18.                 continue;
  19.             else if (parity(a) == parity(b))
  20.                 return ans[YES];
  21.         return ans[NO]; };
  22.     const auto hack_code = [&]() {
  23.         const auto now  = chrono::high_resolution_clock::now();
  24.         const auto time = now.time_since_epoch();
  25.         const auto seed = time.count();
  26.         mt19937_64 random(seed);
  27.         uniform_int_distribution<int> uniform(10,1e9);
  28.         int N; string B, E;
  29.         do
  30.             N = uniform(random), E = expected(N), B = buggy(N);
  31.         while (B == E);
  32.         cout << "Hacking test-case" << endl,
  33.         cout << "N = " << N << endl,
  34.         cout << "Buggy    answer: " << B << endl,
  35.         cout << "Expected answer: " << E << endl; };
  36.     const auto submission_code = [&]() {
  37.         int T; cin.tie(nullptr)->sync_with_stdio(false), cin >> T;
  38.         for (int N; T--; cout << expected(N) << '\n')
  39.             cin >> N; };
  40.     const auto test = true;
  41.     if (test)
  42.         hack_code();
  43.     else
  44.         submission_code();
  45.     return 0; }
  46.  
Success #stdin #stdout 0.01s 5436KB
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stdin
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Standard input is empty
stdout
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Hacking test-case
N = 955375720
Buggy    answer: NO
Expected answer: YES
https://ideone.com/D26dKI
Sad Splits: Hacking Code
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
secret

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