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How to display histogram of 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[255];
	std::string s = "c c++ c# java\n";

	for (int i = 0; i < 255; i++) letters[i] = 0;

	for (int i = 0; i < s.length(); i++)
		if (s[i] != '\n')
			letters[int(s[i])]++;

	for (int i = 0; i < 255; i++) {
		if (letters[i] != 0) {
			cout << (char)(i) << ": " << letters[i] << " ";
			for (int j = 0; j < letters[i]; j++)
				cout << "*";
			cout << endl;
		}
	}

	return 0;
}

/*
run:

: 3 ***
#: 1 *
+: 2 **
a: 2 **
c: 3 ***
j: 1 *
v: 1 *

*/

 




answered 5 days ago by avibootz
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