The Program in C++ Program to Find the numbers in a given string and calculate the sum of all numbers is given below:
#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main()
{
string str;
cout << "Hello Codeauri Family, Enter a string here to find the sum of all numbers in a string: ";
getline(cin, str);
int sum = 0;
stringstream ss(str); // Create a stringstream from the string
while (ss >> str) {
if (stringstream(str) >> sum) { // If str can be converted to an integer, add it to the sum
sum += sum;
}
}
cout << "Well, the Sum of all numbers in the string: " << sum << endl;
return 0;
}
Output:
Hello Codeauri Family, Enter a string here to find the sum of all numbers in a string: The sum of 12 and 15 is 27
Well, the Sum of all numbers in the string: 54
Pro-Tips💡
This program uses the stringstream class to split the input string into words,
and then checks if each word can be converted to an integer using another stringstream.
If a word can be converted, it is added to the sum variable.
Finally, the program outputs the sum of all numbers in the string.
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