VmatrixOJ--[Conditions]

Description

Write a program that reads in n integers and displays distinct numbers (ie., if a number appears multiple times, it is displayed only once).  

Input

The first line is a positive integer t for the number of test cases.
Each test case contains two lines. The first line is an integer n (0<n<=100). The second line contains n integers.

 

Output

For each test case, outputs the distinct numbers in order in which they were read, seperated by one blank.

Sample Input

2
3
1 2 1
4
2 1 2 1

Sample Output

1 2
2 1

Code: 

#include<stdio.h>
int main()
{
	int CaseNum;
	scanf("%d", &CaseNum);
	int a[20][100];
	int i, j, num[100];
	for(i=0; i<CaseNum; i++){
		scanf("%d", &num[i]);
		for(j=0; j<num[i]; j++)
			scanf("%d", &a[i][j]);
	}
	int k;
	for(i=0; i<CaseNum; i++){
		printf("%d", a[i][0]);
		for(j=1; j<num[i]; j++){
			for(k=0; k<j; k++){
				if(a[i][k]==a[i][j])
				break;
			}
			if(k==j)
				printf(" %d", a[i][j]);
		}
			printf("\n");
	}
	return 0;
}