Problem-Solving/A1678 at main · abdalazeezS/Problem-Solving · GitHub

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
53
54
55
56
57
58
59
60
61
62
63
64
65
#include <bits/stdc++.h>
using namespace std;
#define int             long long
#define endl            '\n'
#define debug(x)        cout<<"[" << #x << " is:" << x << "] "<<endl;


void solve()
{

    int n;
    cin >> n;
    vector<int>v(n);
    int ans =0;
    map<int,int>m;
    int zero=0;
    for (int i = 0; i < n; i++)
    {
        cin >> v[i];
        if(v[i] == 0){
            zero++;
        }
        else{
            m[v[i]]++;
        }
    }
    if(zero > 0 ){
        cout<< n - zero << endl;
        return;
    }
    bool f =false;
    for(auto x : m){
        if (x.second > 1)
        {
            f = true;
            break;
        }
    }
    if(f){
        cout << n << endl;
        return;
    }
    else{
        cout<< n+1 << endl;

    }


}


int32_t main()
{
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);

    int t = 1;
    cin >> t;
    while(t--){
        solve();
    }
    return 0;
}