#include <stdio.h>

void main() {
    char array[256];
    FILE* read_f = fopen("./sample.txt", "r");
    if(read_f == NULL){
        printf("Failed to open the file\n");
        return;
    }
    int b = 1;
    while (b > 0) {
        b = fread(array, 1, 255, read_f);
        buff[b] = '\0';
        printf("%s", buff);
    }

    fclose(read_f);
}