/* Author : ~swim~ Date : 15-May-2018 Description: [Challenge] Integers operations In this challenge you must do bitwise operation that works on integers. "Or" operation Input: 123 | 105 Output: 125 "Or" will compare 2 digits and print max of them "Exclusive or" operation "Exclusive or" will work as "or", but if 2 digits are equal, they mustn't be printed "Left shift" operation Input: 123 << 1 Output: 230 "Left shift" must take 1 digit and put it on left of it "Right shift will work as "Left shift", but put digit on right of it I wait your solutions! Good luck! Input: 1. Enter left operand then space then operator to apply then space then right operand then press submit 2. Press submit if you don't want to enter data Program will evaluate test data and print results in both cases. Note: Comprehensive input checking is not done so ensure both operands are positive and use correct operators only ("|, ^, <<, >>") :) */ #include #include #include #include using namespace std; using Oprnd = string; // OR (|) auto OR = [](Oprnd lhs, Oprnd rhs) { if(lhs.size() < rhs.size()) swap(lhs, rhs); auto sz=min(lhs.size(),rhs.size()); transform(lhs.rbegin(), lhs.rbegin()+sz, rhs.rbegin(), lhs.rbegin(), [](auto lc, auto rc){ return max(lc,rc);}); return move(lhs); }; // Exclusive OR (^) auto XOR = [](Oprnd lhs, Oprnd rhs) { if(lhs.size() < rhs.size()) swap(lhs, rhs); auto sz=min(lhs.size(),rhs.size()); transform(lhs.rbegin(), lhs.rbegin()+sz, rhs.rbegin(), lhs.rbegin(), [](auto lc, auto rc){ return lc==rc ? ' ': max(lc,rc);}); return move(lhs); }; // LeftShift (<<) auto LS = [](Oprnd lhs, Oprnd rhs) { size_t sby = stoi(rhs); if(lhs.size() < sby) lhs = string(lhs.size(),'0'); else { lhs = lhs.substr(sby) + string(sby,'0'); } return move(lhs); }; // RightShift (>>) auto RS = [](Oprnd lhs, Oprnd rhs) { size_t sby = stoi(rhs); if(lhs.size() < sby) lhs = string(lhs.size(),'0'); else { lhs = string(sby,'0') + lhs.substr(0,lhs.size()-sby); } return move(lhs); }; // map of operator to function map> Opmap { // OR (|) {"|",OR}, // Exclusive OR/XOR (^) {"^",XOR}, // Left shift (<<) {"<<",LS}, // Right shift (>>) {">>",RS} }; int main() { Oprnd lhs,rhs; string op; cin >> lhs >> op >> rhs; if(!lhs.empty() && !op.empty() && !rhs.empty()) { cout << lhs << " " << op << " " << rhs << " => " << Opmap[op](lhs,rhs) << endl << endl; } cout << "using test dataset\n\n"; cout << "Integer OR:" << endl; cout << "12345 | 54321 => " << Opmap["|"]("12345","54321") << endl; cout << "10345 | 54 => " << Opmap["|"]("10345","54") << endl; cout << "123 | 54321 => " << Opmap["|"]("123","54321") << endl << endl; cout << "Integer XOR:" << endl; cout << "12345 ^ 54321 => " << Opmap["^"]("12345","54321") << endl; cout << "50432 ^ 5472 => " << Opmap["^"]("50432","5472") << endl; cout << "12345 ^ 13346 => " << Opmap["^"]("12345","13346") << endl; cout << "12345 ^ 12345 => " << Opmap["^"]("12345","12345") << endl; cout << "123 ^ 12345 => " << Opmap["^"]("123","12345") << endl << endl; cout << "Integer LeftShift:"< " << Opmap["<<"]("12345","2") << endl; cout << "12345 << 6 => " << Opmap["<<"]("12345","6") << endl; cout << "123 << 2 => " << Opmap["<<"]("123","2") << endl; cout << "12 << 3 => " << Opmap["<<"]("12","3") << endl << endl; cout <<"Integer RightShift:"<> 2 => " << Opmap[">>"]("12345","2") << endl; cout << "12345 >> 6 => " << Opmap[">>"]("12345","6") << endl; cout << "123 >> 2 => " << Opmap[">>"]("123","2") << endl; cout << "12 >> 3 => " << Opmap[">>"]("12","3") << endl; }

[Assignment] Integer_bitwise_operations.cpp