4 za pet(anagrami)

#include <stdio.h>
#include <stdlib.h>
main()
{
    char s[20],c[20],r[20],q[20];
    int n,m,i,j,temp,b=0;
    FILE *fp;
    fp = fopen("zadatak.txt","r");
    fscanf(fp," %s",s);
    fscanf(fp," %s",c);
    fclose(fp);
    puts(s);
    puts(c);
    strcpy(r,s);
    strcpy(q,c);
    n = strlen(s);
    m = strlen(c);
    for(i=0;i<n;i++)
        for(j=1;j<n;j++)
    {
            if(s[i] > s[j])
            {
                temp = s[i];
                s[i] = s[j];
                s[j] = temp;
            }
    }
    for(i=0;i<m;i++)
        for(j=1;j<m;j++)
    {
            if(c[i] > c[j])
            {
                temp = c[i];
                c[i] = c[j];
                c[j] = temp;
            }
    }
    b = strcmp(s,c);
    if(b==0)
    {
        fp = fopen("novadat.txt","w");
        fprintf(fp," %s",r);
        fprintf(fp," %s",q);
    }
    else fp = fopen("novadat.txt","w");
}