Submission #28351

#	Time	Username	Problem	Language	Result	Execution time	Memory
28351		점수판에 아이디와 팀명이 같이 표기되니, 신중하게 적어주세요. (#68)	1-Color Coloring (FXCUP2_coloring)	C++98	0 / 1	0 ms	1124 KiB

coloring

#include "coloring.h"
#include<algorithm>

int next[101];
int prev[101];
int chk[101];
int n;

int list[101];

int findprev(int x, int *l, int n) {
	int f=1, r=n;
	while (f<r) {
		int m = (f + r + 1) / 2;
		for (int i = f; i < m; i++) Color(l[i]);
		if(GetColor(x) == 0) r = m - 1;
		else f = m;
	}
	return l[f];
}

void ColoringSame(int N){
	n = N;
	int x = 1;
	chk[1] = 1;
	for (int i = 1; i < n; i++) list[i] = i+1;
	int s = n-1;
	for (int i = 1; i <= 28 && i < n; i++) {
		prev[x] = findprev(x, list, s);
		next[prev[x]] = x;
		x = prev[x];
		chk[x] = 1;
		int j;
		for (j = 1; list[j] != x; j++);
		for (; j < s; j++) list[j] = list[j + 1];
		s--;
	}
	Color(1);
	std::random_shuffle(list + 1, list + s + 1);
	for (int i = 1; i <= N-40; i++) {
		for (int j = 1; j <= s; j++) {
			Color(list[j]);
		}
	}
	while (x != 1) {
		Color(x);
		x = next[x];
	}
}

• Subtask 1: 0 / 1