how to check a number in string
#include <iostream>
#include <cctype>
int main() {
std::string inputString;
std::cout << "Enter a string: ";
std::getline(std::cin, inputString);
bool containsNumber = false;
for (char character : inputString) {
if (std::isdigit(character)) {
containsNumber = true;
break;
}
}
if (containsNumber) {
std::cout << "The string contains a number." << std::endl;
} else {
std::cout << "The string does not contain any numbers." << std::endl;
}
return 0;
}