#include <stdio.h>
#include <stdlib.h>
#define EOL '\n'

int main()
{
    int count;
    count=0;
    FILE* filept;
    char c;
    filept=fopen("sample.txt","r");
    if(filept==NULL)
        printf("File not found!");
    while(c=fgetc(filept)!=EOF)
        if(c==EOL)
            count++;
    fclose(filept);
    printf("Number of lines: %d", count);

    return 0;
}