// From coding challenge: Check for Fisher number // A Fisher number is an integer whose multipliers // are equal to the number's cube. // For example, 12 is a Fisher number, because 12^3 = 2 x 3 x 4 x 6 x 12. // // Thanks Talentless-guy for the challenge. // // Author: K. Locher, 2018 // // Input: a number or 2 numbers separated with space #include using namespace std; void WriteOutput(int& out1, int& out2) { if (out2 > 0) { cout << " " << out1 << " to " << out2 << " are no Fisher numbers" << endl; } else if (out1 > 0){ cout << " " << out1 << " is no Fisher number" << endl; } out1 = out2 = 0; } int main() { int input1 = 0; int input2 = 0; cin>>input1>>input2; input1 = max(0, input1); input2 = max(0, input2); if (input1 > input2) swap(input1, input2); if (input1 <= 0) { input1 = input2; cout<<"Input is " << input1 << endl; if (0 == input1) return 0; } else { cout<<"Input range is " << input1 << " to " << input2 << endl; } cout << "=============================="< 1; --i) { if ((num % i) == 0) prod *= i; if (prod > target) break; } //cout << target << " " << prod; if (prod == target) { WriteOutput(out1, out2); cout << num << " is a Fisher number" << endl; } else { if (0 == out1) out1 = num; else out2 = num; } } WriteOutput(out1, out2); return 0; }

FisherNumber