C++ Exercises: Compute the sum of the two given integers and count the number of digits of the sum value
C++ Basic: Exercise-64 with Solution
Write a C++ program to compute the sum of the two given integers and count the number of digits in the sum value.
Pictorial Presentation:

Sample Solution:
C++ Code :
#include <iostream>
#include <sstream>
using namespace std;
int main() {
int x, y;
while (cin >> x >> y) {
stringstream str1;
str1 << x + y;
cout << str1.str().size() << endl;
}
return 0;
}
Sample Output:
Sample input : 15 20 Sample Output: 2
Flowchart:

C++ Code Editor:
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Previous: Write a C++ program which prints three highest numbers from a list of numbers in descending order.
Next: Write a C++ program to check whether given length of three side form a right triangle.
What is the difficulty level of this exercise?
C++ Programming: Tips of the Day
Why is there no std::stou?
The most pat answer would be that the C library has no corresponding "strtou", and the C++11 string functions are all just thinly veiled wrappers around the C library functions: The std::sto* functions mirror strto*, and the std::to_string functions use sprintf.
Ref: https://bit.ly/3wtz2qA
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