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Most frequent character function

taylor5479 (10)
Hello. I am working on an assignment for my c++ class and I need to write a program that accepts a c-string and sends it to a function that finds the most frequently occurring character. I followed some directions I found online and the program will compile but I am having trouble getting it to display the most frequent character. If somebody could point out the problem in my code it would be much appreciated. Thanks!

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//Most Frequent Character
#include<iostream>
#include<cstring>
using namespace std;
char mostFrequent(char*, int);
int main()
{
const int size=50;
char string1[size];
cout<<"Enter a string up to 50 characters and I will find the most frequent character.\n";
cin.getline(string1, size);
char mostFrequentCharacter=mostFrequent(string1, size);
cout<<"The most frequent character in the string is: "<<mostFrequentCharacter<<".\n";
return 0;
}
char mostFrequent(char* string1, int size)
{
int array[255]={0};
int i=0;
int max=0;
int index=0;
for(i=0; string1[i]!=0; i++)
{
++array[string1[i]];
}
max=array[0];
for(i=0; string1[i]!=0; i++)
{
	if(array[i]>max)
	{
	max=array[i];
	index=i;
	}
}
char mostCommon=(char)index;
return mostCommon;
}
Aceix (1118)
The problem is with the algorithm you're using in char mostFrequent(char*, int);

Aceix.
taylor5479 (10)
I figured that was where the issue was, but I am having a hard time figuring out exactly what the problem is. Sorry I'm pretty new to c++.
taylor5479 (10)
somebody corrected the algorithm that I found online so I was able to figure out the problem
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