Submission #41081

#	Time	Username	Problem	Language	Result	Execution time	Memory
41081		hsb154	cmp (balkan11_cmp)	C++14	100 / 100	2460 ms	92960 KiB

cmp

#include "cmp.h"

void remember(int n) {
	int mask = 7 << 9;
	
	int me = 0;
	int shift = 9;
	for (int i = 0; i<4; i++) {
		me = me * 8 + ((mask&n) >> shift)+1;
		bit_set(me);
		shift -= 3;
		mask >>= 3;
	}
	
}

int compare(int b) {
	
	
	int ret;
	int mask = 7 << 9;
	int shift = 9;
	int me = 0;
	int left = 1;
	int right = 4;
	int mid = (left + right) / 2;
	
	int saveHeight=-1;
	while (1) {
		mask = 7 << 9;
		shift = 9;
		me = 0;
		if (left > right)
			break;
		mid = (left + right) / 2;
		for (int i = 0; i < mid;i++) {
			me = me * 8 + ((mask&b) >> shift) + 1;
			shift -= 3;
			mask >>= 3;
		}
		if (bit_get(me)) {
			left = mid + 1;
		}
		else {
			
			saveHeight = mid;
			right = mid - 1;
		}
	}
	if (saveHeight == -1)
		return 0;
	me = 0;
	mask = 7 << 9;
	shift = 9;
	for (int i = 0; i < saveHeight; i++) {
		left = me * 8 + 1;
		right = me * 8 + 8;
		me = me * 8 + ((mask&b) >> shift) + 1;
		shift -= 3;
		mask >>= 3;
	}
	if (me - left < right - me) {
		for (int m = me - 1; m >= left; m--) {
			if (bit_get(m) == 1)
				return 1;
		}
		return -1;
	}
	else {
		for (int m = me + 1; m <= right; m++) {
			if (bit_get(m) == 1)
				return -1;
		}
		return 1;
	}
	/*
	for(int i=0;i<4;i++){
		
		int temp_me = me * 8 + ((mask&b) >> shift) + 1;
		if(bit_get(temp_me)==0){
			int left = me * 8 + 1;
			int right = me * 8 + 8;
			
			if (temp_me - left < right - temp_me) {
				for (int m = temp_me - 1; m >= left; m--) {
					if (bit_get(m) == 1)
						return 1;
				}
				return -1;
			}
			else {
				for (int m = temp_me +1; m <= right; m++) {
					if (bit_get(m) == 1)
						return -1;
				}
				return 1;
			}
		}
		me = temp_me;
		mask >>= 3;
		shift -= 3;
	}
	*/
	return 0;
}

Compilation message (stderr)

cmp.cpp: In function 'int compare(int)':
cmp.cpp:20:6: warning: unused variable 'ret' [-Wunused-variable]
  int ret;
      ^~~

• Subtask 1: 100 / 100