-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathA_Redstone.cpp
More file actions
52 lines (45 loc) · 839 Bytes
/
Copy pathA_Redstone.cpp
File metadata and controls
52 lines (45 loc) · 839 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(v) (v).begin(), (v).end()
void solve() {
int n;
cin >> n;
vector<int> v(n);
for(auto &x : v){
cin>>x;
}
// int freq[1000]={0};
// bool flag = false;
// for(int i=0;i<n;i++){
// freq[v[i]]++;
// if(freq[v[i]]==2){
// flag=true;
// break;
// }
// }
// if(flag){
// cout<<"YES"<<endl;
// }
// else{
// cout<<"NO"<<endl;
// }
set<int> s(v.begin(),v.end());
if(s.size()<n){
cout<<"YES"<<endl;
}
else{
cout<<"NO"<<endl;
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t;
cin >> t;
while (t--) {
solve();
}
return 0;
}
// Successfully Submitted