GG

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <conio.h>

int mn(FILE* f);
int br(char c, FILE* f);

int main()
{
    FILE* f;
    char c;
    char fileName[128];

    printf("Enter input file name: ");
    scanf("%s", &fileName);

    fflush(stdin);

    printf("Vuvedete cifra: ");
    scanf("%c", &c);

    if (!(f = fopen(fileName, "r")))
    {
        printf("The file does not exist");
        return 1;
    }

    int count = br(c, f);
    rewind(f);
    mn(f);
    printf("Cifrata %c se sreshta %d puti", c, count);

    fclose(f);
    _getch();
    return 0;
}

int br(char c,FILE* inp)
{
    int count = 0, next;
    for (;;)
    {
        if ((next = fgetc(inp)) == EOF) break;
        if (next == c) count++;
    }
    return count;
}