#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
int firstBit (int x, int y) {
FOR(i, 0, 15)
if ((x&(1<<i)) != (y&(1<<i)))
return i;
return -1;
}
int encode (int n, int x, int y) {
int b = firstBit(x, y);
// if (b == -1) exit(1);
b++;
int code = b<<1;
if (x & (1<<(b-1))) code++;
return code;
}
int decode (int n, int q, int h) {
bool one = false;
if (h&1) one = true;
h >>= 1;
h--;
bool has = false;
if (q & (1<<h)) has = true;
if (has==one) return 1;
else return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Partially correct |
2960 ms |
24220 KB |
Output is partially correct - maxh = 21 |
2 |
Partially correct |
3046 ms |
24096 KB |
Output is partially correct - maxh = 21 |