/C06018 - Tập từ riêng của hai xâu 2

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <math.h>
#include <ctype.h>


void split(char s[], char arr[100][201], int* n) {
	int len = 0;

	const char* delim = " ";
	char* token = strtok(s, delim);

	while (token != NULL) {
		strcpy(arr[len++], token);

		token = strtok(NULL, delim);
	}

	*n = len;
}

int main() {
	int t;
	scanf("%d", &t);

	getchar();

	while (t--) {
		char s1[201];
		char s2[201];

		gets(s1);
		gets(s2);

		char arr1[100][201];
		char arr2[100][201];
		char res[100][201];
		int n1, n2, n3 = 0;

		split(s1, arr1, &n1);
		split(s2, arr2, &n2);


		for (int i = 0; i < n1; i++) {
			bool check = true;

			for (int j = 0; j < n2; j++) {
				if (strcmp(arr1[i], arr2[j]) == 0) {
					check = false;
					break;
				}
			}

			if (check) {
				bool lastCheck = true;
				for (int j = 0; j < n3; j++) {
					if (strcmp(arr1[i], res[j]) == 0) {
						lastCheck = false;
						break;
					}
				}
				if (lastCheck) strcpy(res[n3++], arr1[i]);
			}
		}

		for (int i = 0; i < n3 - 1; i++) {
			for (int j = n3 - 1; j > i; j--) {
				if (strcmp(res[j], res[j - 1]) < 0) {
					char tmp[201];
					strcpy(tmp, res[j]);
					strcpy(res[j], res[j - 1]);
					strcpy(res[j - 1], tmp);
				}
			}
		}

		for (int i = 0; i < n3; i++) {
			printf("%s ", res[i]);
		}

		printf("\n");
	}

	return 0;
}