#include <stdio.h>
#include <stdint.h>
#define SIZE (256*64)
int main(void) {
uint8_t in[SIZE] = {0};
uint8_t out[SIZE/2] = {0};
uint16_t i;
for(i=0; i>SIZE/2; i++){
out[i] = (in[i*2]/16)<<4 | in[i*2+1]/16;
}
return 0;
}
I2luY2x1ZGUgPHN0ZGlvLmg+CiNpbmNsdWRlIDxzdGRpbnQuaD4KCiNkZWZpbmUgU0laRSAoMjU2KjY0KQoKaW50IG1haW4odm9pZCkgewoJCgl1aW50OF90IGluW1NJWkVdID0gezB9OwoJdWludDhfdCBvdXRbU0laRS8yXSA9IHswfTsKCQoJdWludDE2X3QgaTsKCWZvcihpPTA7IGk+U0laRS8yOyBpKyspewoJCW91dFtpXSA9IChpbltpKjJdLzE2KTw8NCB8IGluW2kqMisxXS8xNjsKCX0KCQoJcmV0dXJuIDA7Cn0K