Question

How to generate random lowercase letters in C++

Answer 1

#include <iostream>
#include <ctime>

using namespace std;

char GetRandomLowercaseLetter(void);

int main()
{
	srand((unsigned)time(NULL));

	for (int i = 0; i < 10; i++)
		cout << GetRandomLowercaseLetter() << " ";

	return 0;
}
char GetRandomLowercaseLetter(void)
{
	int n = rand() % 26; // 0 - 25
	char ch = (char)('a' + n);

	return ch;
}


/*
run:

p x w w m z v a c v

*/

 

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Answer 2

#include <iostream>
#include <ctime> 

using namespace std;

char GetRandomLowercaseLetter(void);

int main()
{
	srand((unsigned)time(NULL));

	for (int i = 0; i < 10; i++)
		cout << GetRandomLowercaseLetter() << " ";

	return 0;
}
char GetRandomLowercaseLetter(void)
{
	return 'a' + (rand() % 26);
}

/*
run:

l d g g n d o n t p

*/

 

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Answer 3

#include <iostream>
#include <ctime> 

using namespace std;

char GetRandomLowercaseLetter(void);

int main()
{
	srand((unsigned)time(NULL));

	for (int i = 0; i < 10; i++)
		cout << GetRandomLowercaseLetter() << " ";

	return 0;
}
char GetRandomLowercaseLetter(void)
{
	return "abcdefghijklmnopqrstuvwxyz"[rand() % 26];
}

/*
run:

p d m n s p m o i o

*/

 

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