C4-olympic

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

int revers(void)
{
     for(k=0; k<20; k++);
               {
                 wfname[k]=fname[k];
               }
     for(k=0; k<15; k++);
               {
                 wsname[k]=sname[k];
               }
}
int main(void)
{
    char fname[21], sname[16], wfname[20], wsname[20];
    int N, score, grade, amount, k, bestscore;
    scanf("%d", &N);
    bestscore=0;
    amount=1;
    for(int i=0; i<N; i++)
    {
        scanf("%s %s %d %d", fname, sname, &grade, &score);
        if (score<200)
        {
           if (score !=0 && score==bestscore)
           {
             amount++;
           }
           if (score>bestscore)
           {
               revers()
           }

        }
    }
    if (amount>1)
    {
       printf("%d", amount);
    }
    else puts(wfname) && puts(wsname);
    return(0);
}