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- #include <iostream>
- using namespace std;
- int parseNum(char);
- int main() {
- char opr,first,second;
- cin >> opr >> first >> second;
- int firstVal = parseNum(first);
- int secondVal = parseNum(second);
- if (opr == '+') {
- cout << firstVal + secondVal;
- } else if (opr == '-') {
- cout << firstVal - secondVal;
- } else if (opr == '*') {
- cout << firstVal * secondVal;
- } else if (opr == '/') {
- cout << firstVal / secondVal;
- } else if (opr == '%') {
- cout << firstVal % secondVal;
- }
- return 0;
- }
- int parseNum(char symbol){
- int num = 0;
- switch (symbol) {
- case '0':
- num = 0;
- break;
- case '1':
- num = 1;
- break;
- case '2':
- num = 2;
- break;
- case '3':
- num = 3;
- break;
- case '4':
- num = 4;
- break;
- case '5':
- num = 5;
- break;
- case '6':
- num = 6;
- break;
- case '7':
- num = 7;
- break;
- case '8':
- num = 8;
- break;
- case '9':
- num = 9;
- break;
- case 'A':
- num = 10;
- break;
- case 'B':
- num = 11;
- break;
- case 'C':
- num = 12;
- break;
- case 'D':
- num = 13;
- break;
- case 'E':
- num = 14;
- break;
- case 'F':
- num = 15;
- break;
- }
- return num;
- }
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