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How to count alphabetic character occurrences in a string with C++

1 Answer

0 votes
#include <iostream>
#include <string>

using std::cout;
using std::endl;

int main()
{
	int letters[26];
	std::string s = "c c++ c# java";

	for (int i = 0; i < 26; i++) letters[i] = 0;
	
	for (int i = 0; i < s.length(); i++) 
		if (isalpha(s[i]))
			letters[s[i] - 'a']++;

	for (int i = 0; i < 26; i++) {
		if (letters[i] != 0)
			cout << (char)('a' + i) << ": " << letters[i] << endl;
	}

	return 0;
}

/*
run:

a: 2
c: 3
j: 1
v: 1

*/

 




answered 6 days ago by avibootz
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