C++ Program to Print Maximum Occurring Character in a String

Write a C++ Program to Print Maximum Occurring Character in a String with an example. In this C++ example, we use the if statement within the for loop to get maximum character occurrence in a given string.

#include<iostream>
#include<string>
using namespace std;

int main()
{
	string str;
	int i, len;
  	int max = -1;
  	char result;
  	
  	int freq[256] = {0}; 
  	
	cout << "\nPlease Enter the String to Find Max Occur Char  =  ";
	getline(cin, str);
	
	len = str.length();
  	
  	for(i = 0; i < len; i++)
  	{
  		freq[str[i]]++;
	}
  		
  	for(i = 0; i < len; i++)
  	{
		if(max < freq[str[i]])
		{
			max = freq[str[i]];
			result = str[i];
		}
	}
	cout<< "\nThe Maximum Occurring Character in " << str <<" = " << result;
		
 	return 0;
}

Please Enter the String to Find Max Occur Char  =  tutorial gateway

The Maximum Occurring Character in tutorial gateway = t

In this C++ maximum occurring string Character example, we used extra cout statements to show you the frequency of characters at each iteration.

#include<iostream>
#include<string>
using namespace std;

int main()
{
	string str;
	int i, len;
  	int max = -1;
  	char result;
  	
  	int freq[256] = {0}; 
  	
	cout << "\nPlease Enter the String to Find Max Occur Char  =  ";
	getline(cin, str);
	
	len = str.length();
  	
  	for(i = 0; i < len; i++)
  	{
  		freq[str[i]]++;
	}
  		
  	for(i = 0; i < len; i++)
  	{
  		cout << "freq[str[i]] = " << freq[str[i]] << endl;
  		cout << "str[i] = " << str[i] << endl;
		if(max < freq[str[i]])
		{
			max = freq[str[i]];
			cout << "Max = " << max << endl;
			result = str[i];
	  		cout << "Result = " << result << endl;
		}
					cout << "-----\n\n";
	}
	cout<< "\nThe Maximum Occurring Character in " << str <<" = " << result;
		
 	return 0;
}

C++ Program to Print Maximum Occurring Character in a String Example 3

#include<iostream>
#include<string>
using namespace std;

int main()
{
	string str;
	int i, len;
  	int max = -1;
  	char result;
  	
  	int freq[256] = {0}; 
  	
	cout << "\nPlease Enter the String to Find Max Occur Char  =  ";
	getline(cin, str);
	
	len = str.length();
  	
  	for(i = 0; i < len; i++)
  	{
  		freq[str[i]]++;
	}
  		
  	for(i = 0; i < 256; i++)
  	{
		if(freq[i] > freq[max])
		{
			max = i;
		}
	}
	cout<< "\nThe Maximum Occurring Character in " << str <<" = " << (char)max;
	cout << "\nCharacter " << (char)max << " appears Maximum of " <<  freq[max] << " Times in " << str;
		
 	return 0;
}

Please Enter the String to Find Max Occur Char  =  hello world

The Maximum Occurring Character in hello world = l
Character l appears Maximum of 3 Times in hello world