#include <stdio.h>
int main(void) {
int data[] = {3, 3, 3, 3};
char buf[128], *pos = buf;
for (int i = 0 ; i != 4 ; i++) {
// if (i) {
// pos += sprintf(pos, ", ");
// }
pos
+= sprintf(pos
, "%02X", data
[i
]); }
return 0;
}
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