mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
34 lines
579 B
C++
34 lines
579 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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//
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int main()
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{
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int t;
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scanf("%d",&t);
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while(t--)
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{
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int n;
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scanf("%d",&n);
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int tmp;
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bool haveone=false;
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bool havezero=false;
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for(int i=0;i<n;i++)
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{
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scanf("%d",&tmp);
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if(tmp==1) haveone=true;
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else if(tmp==0) havezero=true;
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}
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if(haveone&&havezero)
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{
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printf("YES\n");
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}
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else
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{
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printf("NO\n");
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}
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}
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return 0;
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}
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