Hint: This problem is not hard, but can be time consuming since many conditions. Prompt the user to enter a sequence of numbers and arithmetic symbols as words, and then calculate the result of the equation.

• Valid number words: zero, one, two, three, four, five, six, seven, eight, nine

• Valid symbol words: plus, minus, times, divides

• Order of operation is simply left to right. That is, calculate immediately after reading two numbers and one arithmetic symbol.

• Use the std::to_string function to convert an int to a string. E.g.,

  • string numberText = std::to_string(9); // string numberText = "9";

In c++

Prompt the user to enter a sequence of numbers and arithmetic symbols as words, and then calculate the result of the equation. . Valid number words: zero, one, two, three, four, five, six, seven, eight, nine Valid symbol words: plus, minus, times, divides Order of operation is simply left to right. That is, calculate immediately after reading two numbers and one arithmetic symbol. Use the std::to_string function to convert an int to a string. E.g., o string numberText = std::to_string(9); // string numberText = "9"; Sample Execution Please enter word equation (type 'equals' at the end) : five times two plus four divides seven equals 5 * 2 + 4 / 7 = 2 I Full Screen calculator.cpp + New 1 #include 2 #include 3 using std::cin, std::cout, std::endl, std::string, std::to_string; 4. 5- int main() { 6 7 8 return 0; 9} 10