In C++, an int is in the range 0 to 65535. But what if we need to add larger integers? Compute the sum 2345566777844567 + 9999988777765768009998. Write this function: string add(string a, string b) where a and b are strings expressing integers and the function add(a,b) returns a string signifying their sum. Strings a and b can have at most 100 characters. Write a main program that loops, asking the user for a and b. The program should terminate if the user enters “done” what asked for “number” a.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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In C++, an int is in the range 0 to 65535. But what if we need to add larger integers? Compute the sum 2345566777844567 + 9999988777765768009998.

Write this function:
string add(string a, string b)

where a and b are strings expressing integers and the function add(a,b) returns a string signifying their sum.

Strings a and b can have at most 100 characters.

Write a main program that loops, asking the user for a and b.

The program should terminate if the user enters “done” what asked for “number” a.

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