Code:

#include <stdio.h>

int main()
{
    int num;
    FILE* f=fopen("file.txt","r");
    
    fscanf(f,"%d \n",&num);

    fclose(f);

    return 0;
}

Code:

             FILE * m_pFilePointer;
            
             fopen(m_pFilePointer, "r");

             char strWord[255] = {0};
    while(!feof(m_FilePointer))
    {
        fscanf(m_FilePointer, "%s", &strWord);

        if(!strcmp(strWord, "Nesto za uporedjivanje sa ovim stringom"))
        {
                    //bla bla Uradi nesto ako smo nasli nesto
                         }
        else
        {
                                      // Idem na novi red ako nije zadovoljen uslov
            fgets(strWord, 100, m_FilePointer);
        }
    }