[C] how to count frequency in an int Array.

the code looks all messy at the moment, because i have been using this one to trial out different solutions to this problem.

#include <stdio.h>
#include <string.h>
#include <ctype.h>


int main()
{
int limit = 0;
int i=0;
int x=0;
int y=0;
int a=0;
int b=0;
int c=0;
int nalpha=0;
const int MAX = 25;
int count[256] = {0};
int temp=0;
char userinput[MAX] = {'\0'};
int arry[50];

printf("Please enter a string up to 27 characters long. \n");
fgets(userinput, MAX, stdin);
userinput[strlen(userinput) - 1] = '\0';


for (a = 0; a<=MAX; a++)
{
    userinput[a]=toupper(userinput[a]);
}

for (i = 0; i< MAX; i++)
{
    printf("string entered: %d\n", userinput[i]);
}

for (b=0; b< MAX; b++)
{
    if((userinput[b] <= 64) || (userinput[b] >= 91))
    {
        nalpha++;
    }
    else
    {
        count[userinput[b]]++;
    }
}

for (y = 0; y<= MAX; y++)
{
    printf("the tally for %c is %d \n", y + 'A', count[y]);
}
printf("there are %d none alphabetical characters", nalpha);

return(0);

}

E:>testcode

Please enter a string up to 27 characters long.

abc

string entered: 65

string entered: 66

string entered: 67

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

string entered: 0

the tally for A is 22

the tally for B is 0

the tally for C is 0

the tally for D is 0

the tally for E is 0

the tally for F is 0

the tally for G is 0

the tally for H is 0

the tally for I is 0

the tally for J is 0

the tally for K is 0

the tally for L is 0

the tally for M is 0

the tally for N is 0

the tally for O is 0

the tally for P is 0

the tally for Q is 0

the tally for R is 0

the tally for S is 0

the tally for T is 0

the tally for U is 0

the tally for V is 0

the tally for W is 0

the tally for X is 0

the tally for Y is 0

the tally for Z is 0

there are 0 none alphabetical characters

E:>

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