mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
35 lines
716 B
C++
35 lines
716 B
C++
#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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using namespace std;
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int data[1005];
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char cmdline[10240];
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char buff[32];
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int main()
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{
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int inc,times,count;
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while(scanf("%d",×)==1)
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{
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memset(data,0,sizeof(int)*1005);
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memset(cmdline,0,10240);
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count=0;
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for(int i=0;i<times;i++)
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{
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scanf("%d",&inc);
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data[inc]++;
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}
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for(int i=0;i<1005;i++)
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{
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if(data[i])
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{
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count++;
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sprintf(buff,"%d ",i);
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strcat(cmdline,buff);
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}
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}
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cmdline[strlen(cmdline)-1]='\0';
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printf("%d\n%s\n",count,cmdline);
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}
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return 0;
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}
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