Submission #45449

# Submission time Handle Problem Language Result Execution time Memory
45449 2018-04-14T06:33:09 Z smu201111192 cmp (balkan11_cmp) C++17
0 / 100
1081 ms 102232 KB
#include "cmp.h"
void remember(int n) {
	n += 4096;
	while (n > 1){
		bit_set(n);
		n /= 4;
	}
}
int kth(int num,int k){
	k = 6 - k;
	for (int i = 0; i < k; i++){  num /= 4; }
	return num;
}
int compare(int b) {
	int lo = 0;
	int hi = 6;
	int same = 1;
	while (lo <= hi){
		int mid = (lo + hi) / 2;
		if (bit_get(kth(b, mid)) == 1) lo = mid + 1;
		else { hi = mid - 1; same = 0; }
	}
	if (same) return 0;
	int diff_pos = lo - 1;
	int rem = kth(b, diff_pos);
	if (rem % 4 == 0){
		return -1;
	}
	else if (rem % 4 == 1){
		return bit_get(rem / 4 * 4 + 0) ? 1 : -1;
	}
	else if (rem % 4 == 2){
		return bit_get(rem / 4 * 4 + 3) ? -1 : 1;
	}
	else{
		return 1;
	}
}

# Verdict Execution time Memory Grader output
1 Incorrect 1081 ms 102232 KB ZERO POINTS: bit_get with address out of range