whats wrong with my code it is not compiling

#include

int tag[8];

int main()

{

int addr;

int i, j, t;

int hits, accesses;

FILE *fp;

fp = fopen("trace.txt", "r");

hits = 0;

accesses = 0;

while (fscanf(fp, "%x", &addr) > 0) {

/* simulate a direct-mapped cache with 8 words */

accesses += 1;

printf("%3d: 0x%08x ", accesses, addr);

i = (addr >> 2) & 7;

t = addr | 0x1f;

if (tag[i] == t) {

hits += 1;

printf("Hit%d ", i);

}

else {

/* allocate entry */

printf("Miss ");

tag[i] = t;

}

for (i = 0; i < 8; i++)

printf("0x%08x ", tag[i]);

printf(" ");

}

printf("Hits = %d, Accesses = %d, Hit ratio = %f ", hits, accesses, ((float)hits) / accesses);

close(fp);

}