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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. vector<int> dp;
  5.  
  6. int f(int n, int k, int l) {
  7.     if (n == 1 || n == k || n == l) return dp[n] = 1;
  8.     if (dp[n] != -1) return dp[n];
  9.  
  10.     int a = (n > 1) ? f(n - 1, k, l) : 1;
  11.     int b = (n > k) ? f(n - k, k, l) : 1;
  12.     int c = (n > l) ? f(n - l, k, l) : 1;
  13.  
  14.     return dp[n] = !(a && b && c);
  15. }
  16.  
  17. int main() {
  18.     ios::sync_with_stdio(false);
  19.     cin.tie(NULL);
  20.  
  21.     int k, l, m;
  22.     if (!(cin >> k >> l >> m)) return 0; // Handle empty input
  23.  
  24.     vector<int> v(m);
  25.     for (int i = 0; i < m; i++) {
  26.         if (!(cin >> v[i])) return 0; // Handle incomplete input
  27.     }
  28.  
  29.     int n = *max_element(v.begin(), v.end());
  30.     dp.assign(n + 1, -1);
  31.  
  32.     // Precompute dp values
  33.     f(n, k, l);
  34.  
  35.     for (int i = 0; i < m; i++) {
  36.         cout << (dp[v[i]] ? 'a' : 'b');
  37.     }
  38.  
  39.     cout << '\n'; // Ensure proper output format
  40.     return 0;
  41. }
  42.  
Success #stdin #stdout 0s 5276KB
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Standard input is empty
stdout
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Standard output is empty
https://ideone.com/0JftGW
problem MCOINS, based on SPOJ submission 34338877 (C++ 4.3.2), 2025-03-21 07:57:54
language:
C++ 4.3.2 (gcc-4.3.2)
created:
19 days ago
visibility:
public

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