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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. int sumOfDigits(int x){
  7.  
  8.        long long num = 0;
  9.        for(int i = 0; i < 10; i++){
  10.               num += x%10;
  11.               x /= 10;
  12.        }
  13.        return num;
  14. }
  15.  
  16. long long power(int x, int p){
  17.        long long result = 1;
  18.        for(int u = 0; u < p; u++){
  19.               result *= x;
  20.        }
  21.        return result;
  22. }
  23. int main()
  24. {
  25.        int a, b, c;
  26.        vector< long long> nums;
  27.       cin >> a >> b >> c;
  28.        for(int i = 1; i <= 81; i++){
  29.               long long eq = b * power(i, a) + c;
  30.               int sOfeq = sumOfDigits(eq);
  31.               if(sOfeq == i && eq > 0 && eq < 1000000000){
  32.                      nums.push_back(eq);
  33.               }
  34.        }
  35.          cout << nums.size() << endl;
  36.        for(int i = 0; i < nums.size(); i++){
  37.              if(i == nums.size()-1){
  38.               cout << nums[i];
  39.              }
  40.              else{
  41.               cout << nums[i] << " ";
  42.              }
  43.        }
  44.        return 0;
  45. }
  46.  
Success #stdin #stdout 0s 3420KB
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https://ideone.com/vLlbmJ
language:
C++14 (clang 8.0)
created:
8 years ago
visibility:
public

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