Computer Science – 11.1 Programming Basics | e-Consult

Here's a C++ solution:

#include 
#include 
#include 
int countWords(const std::string& inputString) {
std::stringstream ss(inputString);
std::string word;
int wordCount = 0;
if (inputString.empty() || (inputString.findfirstnot_of(" ") == std::string::npos)) {
return 0; // Handle empty or all-space strings
}
while (std::getline(ss, word, ' ')) {
if (!word.empty()) { // Avoid counting empty strings resulting from multiple spaces
wordCount++;
}
}
return wordCount;
}
int main() {
std::string input1 = "apple,banana,orange";
std::cout 
Explanation:
The countWords() function takes a string as input.
It uses a stringstream to parse the input string.
It handles the cases where the input string is empty or contains only spaces by returning 0.
It iterates through the string, extracting words separated by spaces using std::getline().
It increments the wordCount for each non-empty word.