#530171 (C) No.1170 Never Want to Walk

• 問題: No.1170 Never Want to Walk
• ユーザー: 👑 ygussany
• 提出日時: 2020-08-14 21:46:13
• 言語: C (gcc 12.3.0)
• 結果: AC
• 実行時間: 65 ms / 2,000 ms
• コード長: 1,639 bytes
• コンパイル時間: 245 ms
• コンパイル使用メモリ: 31,232 KB
• 実行使用メモリ: 6,820 KB
• 最終ジャッジ日時: 2024-10-10 14:53:29
• 合計ジャッジ時間: 2,909 ms
• ジャッジサーバーID （参考情報）: judge4 / judge3

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	1 ms; 6,816 KB
testcase_01	AC	1 ms; 6,816 KB
testcase_02	AC	1 ms; 6,820 KB
testcase_03	AC	1 ms; 6,820 KB
testcase_04	AC	1 ms; 6,816 KB
testcase_05	AC	1 ms; 6,820 KB
testcase_06	AC	1 ms; 6,816 KB
testcase_07	AC	1 ms; 6,820 KB
testcase_08	AC	2 ms; 6,816 KB
testcase_09	AC	1 ms; 6,816 KB
testcase_10	AC	1 ms; 6,816 KB
testcase_11	AC	1 ms; 6,816 KB
testcase_12	AC	1 ms; 6,820 KB
testcase_13	AC	1 ms; 6,820 KB
testcase_14	AC	1 ms; 6,816 KB
testcase_15	AC	1 ms; 6,820 KB
testcase_16	AC	1 ms; 6,820 KB
testcase_17	AC	1 ms; 6,820 KB
testcase_18	AC	1 ms; 6,820 KB
testcase_19	AC	1 ms; 6,820 KB
testcase_20	AC	1 ms; 6,816 KB
testcase_21	AC	1 ms; 6,816 KB
testcase_22	AC	1 ms; 6,816 KB
testcase_23	AC	2 ms; 6,820 KB
testcase_24	AC	1 ms; 6,820 KB
testcase_25	AC	2 ms; 6,816 KB
testcase_26	AC	1 ms; 6,816 KB
testcase_27	AC	64 ms; 6,816 KB
testcase_28	AC	62 ms; 6,820 KB
testcase_29	AC	65 ms; 6,820 KB
testcase_30	AC	65 ms; 6,816 KB
testcase_31	AC	63 ms; 6,820 KB
testcase_32	AC	57 ms; 6,816 KB
testcase_33	AC	63 ms; 6,820 KB
testcase_34	AC	59 ms; 6,820 KB
testcase_35	AC	58 ms; 6,820 KB
testcase_36	AC	57 ms; 6,816 KB
testcase_37	AC	58 ms; 6,820 KB
testcase_38	AC	60 ms; 6,816 KB

ソースコード

#include <stdio.h>
#include <stdlib.h>

typedef struct {
	int *par, *size, *height;
} UF_forest;

void UF_initialize(UF_forest *F, int n)
{
	int i;
	F->par = (int*)malloc(sizeof(int) * (n + 1));
	F->size = (int*)malloc(sizeof(int) * (n + 1));
	F->height = (int*)malloc(sizeof(int) * (n + 1));
	for (i = 1; i <= n; i++) {
		F->par[i] = i;
		F->size[i] = 1;
		F->height[i] = 1;
	}
}

void UF_merge(UF_forest *F, int u, int v)
{
	for (; F->par[u] != u; u = F->par[u]);
	for (; F->par[v] != v; v = F->par[v]);
	if (u == v) return;
	else if (F->height[u] > F->height[v]) {
		F->par[v] = u;
		F->size[u] += F->size[v];
	} else {
		F->par[u] = v;
		F->size[v] += F->size[u];
		if (F->height[u] == F->height[v]) F->height[v]++;
	}
}

int UF_root(UF_forest *F, int v)
{
	for (; F->par[v] != v; v = F->par[v]);
	return v;
}

int UF_size(UF_forest *F, int v)
{
	for (; F->par[v] != v; v = F->par[v]);
	return F->size[v];
}

int main()
{
	int i, N, A, B, x[200002];
	scanf("%d %d %d", &N, &A, &B);
	for (i = 1; i <= N; i++) scanf("%d", &(x[i]));
	x[0] = -(1 << 30);
	x[N+1] = x[N] + B + 1;
	
	int j, l[2], r[2], m, tmp = 0;
	UF_forest F;
	UF_initialize(&F, N + 1);
	for (i = 1; i <= N; i++) {
		l[0] = i;
		r[0] = N + 1;
		while (l[0] < r[0]) {
			m = (l[0] + r[0] + 1) / 2;
			if (x[m] - x[i] > B) r[0] = m - 1;
			else l[0] = m;
		}
		l[1] = i;
		r[1] = N + 1;
		while (l[1] < r[1]) {
			m = (l[1] + r[1]) / 2;
			if (x[m] - x[i] < A) l[1] = m + 1;
			else r[1] = m;
		}
		for (j = (l[1] < tmp)? tmp: l[1]; j <= r[0]; j++) UF_merge(&F, i, j);
		tmp = r[0];
	}
	
	for (i = 1; i <= N; i++) printf("%d\n", UF_size(&F, i));
	fflush(stdout);
	return 0;
}