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好水

Posted by KatrineYang at 2016-11-06 12:52:11 on Problem 3916
#include <stdio.h>
int main() {
	int n;
	while(1){
		scanf("%d",&n);
		if(!n)break;
		int c = -1;
		while(n--){
			int d;
			scanf("%d",&d);
			if(d^c){
				printf("%d ",d);
				c=d;
			}
		}
		printf("$\n");
	}
	return 0;
}

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