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48 lines (47 loc) · 932 Bytes
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CF_1420_A.cpp
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48 lines (47 loc) · 932 Bytes
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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main()
{
cin.tie(0);cin.sync_with_stdio(0);
cout.tie(0);cout.sync_with_stdio(0);
int t = 1;
cin >> t;
while (t--)
{
int size;
cin>>size;
vector<int> vec(size);
set<int> s1;
for(int i=0; i<size; i++)
{
cin>>vec[i];
s1.insert(vec[i]);
}
if(s1.size()==size)
{
bool ans=false;
for(int i=0; i<size-1; i++)
{
if(vec[i]<vec[i+1])
{
ans=true;
break;
}
}
if(ans)
{
cout<<"YES"<<endl;
}
else
{
cout<<"NO"<<endl;
}
}
else
{
cout<<"YES"<<endl;
}
}
return 0;
}