C++ Exercises: Read an integer n and prints the factorial of n
C++ Basic: Exercise-69 with Solution
For n = 10, write a C++ program that reads the integer n and prints its factorial.
Pictorial Presentation:

Sample Solution:
C++ Code :
#include <iostream>
using namespace std;
long long factorial(int num) {
if (num == 0) {
return 1;
}
else {
return num * factorial(num-1);
}
}
int main() {
int num;
cin >> num;
cout << factorial(num) << endl;
}
Sample Output:
sample Output 1
Flowchart:

C++ Code Editor:
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Next: Write a C++ program to replace all the lower-case letters of a given string with the corresponding capital letters.
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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