/* Mutiply by fingers from 5*5 to 9*9 given a and b left hand: raise a - 5 fingers right hand raise b -5 fingers add risen fingers and multiply by 10 - this is x. multiply bowed fingers of both hands and add to x. Program challenge: Input: two Integers between 5 and 9 output: Explain the algorithm applying a and b. example: input 6 and 8 output should be the following text(or similary) Raise 1 finger of the left hand. Raise 3 fingers of the right hand. The sum of rosen fingers is 4. Multiply 4 by 10. The result is 40. Now on the right hand 4 fingers are bowed and on the right one 2 fingers are bowed. Multiply 2 by 4. The result is 8. Add 40 and 8. The result is 48. You are done." https://www.sololearn.com/post/162484/?ref=app */ #include using namespace std; template void show_result(char const *str, T value, Args... args) { while (str && *str) { if (*str == '%' && *++str != '%'){ cout << value; if constexpr(sizeof...(args)> 0) return show_result(str++, args...); } cout << *str++; } } int main() { constexpr int LHF{5}; constexpr int RHF{LHF}; int lhf, rhf; cin >> lhf >> rhf; if ((lhf < 5 || lhf > 9) || (rhf < 5 || rhf > 9)) { cerr << "\nInvalid values " "entered\nUsing " "default " "values\nLeft hand" "= 6\nRight hand =" "8\n"; lhf = 6, rhf = 8; } string const format{"\nRaise % finger of the left hand.\nRaise % fingers of the right hand.\n\nSum of rosen fingers is %. \nMultiplying % by 10. The result is %. \n\nNow on the left hand % fingers are bowed.\nand on the right one % fingers are bowed.\n\nMultiply % by %. The result is %. \n\nAdd % and %.\nThe result is %."}; int lhrf{lhf - LHF}; int rhrf{rhf - RHF}; int isum{lhrf + rhrf}; int res{isum * 10}; int lhbf{LHF - lhrf}; int rhbf{RHF - rhrf}; int res1{lhbf * rhbf}; show_result(format.c_str(), lhrf, rhrf, isum, isum, res, lhbf, rhbf,lhbf, rhbf, res1, res, res1, (res + res1)); }

[Challenge] Finger Multiplication.cpp