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#include <bits/stdc++.h>
using namespace std;
 
#define ms(s,n) memset(s,n,sizeof(s))
#define all(a) a.begin(),a.end()
#define present(t, x) (t.find(x) != t.end())
#define sz(a) int((a).size())
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
#define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define mp make_pair
#define endl "\n"
 
 
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int,int> pi;
typedef vector<int> vi;
typedef vector<pi> vii;
 
const int MOD = (int) 1e9+7;
const int INF = (int) 1e9+2804;
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
inline ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
 
int cnt[1000002];
 
int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	int TC; cin >> TC;
	while(TC--){
		int n; cin >> n;
		ms(cnt, 0);
		for(int i = 0; i < n; i++){
			int x; cin >> x;
			if (x > 0) cnt[x] = 1;
		}
		for(int i = 1; i <= 1e6 + 1; i++){
			if(!cnt[i]){
				cout << i << endl;
				break;
			}
		}
	}
	return 0;
}
 
 

Main.java:1: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:1: error: class, interface, or enum expected
#include <bits/stdc++.h>
         ^
Main.java:4: error: illegal character: '#'
#define ms(s,n) memset(s,n,sizeof(s))
^
Main.java:4: error: class, interface, or enum expected
#define ms(s,n) memset(s,n,sizeof(s))
        ^
Main.java:5: error: illegal character: '#'
#define all(a) a.begin(),a.end()
^
Main.java:6: error: illegal character: '#'
#define present(t, x) (t.find(x) != t.end())
^
Main.java:7: error: illegal character: '#'
#define sz(a) int((a).size())
^
Main.java:8: error: illegal character: '#'
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
^
Main.java:8: error: class, interface, or enum expected
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
                                       ^
Main.java:8: error: class, interface, or enum expected
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)
                                                ^
Main.java:9: error: illegal character: '#'
#define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
^
Main.java:9: error: class, interface, or enum expected
#define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
                                            ^
Main.java:9: error: class, interface, or enum expected
#define FORd(i, a, b) for (int i = (a) - 1; i >= (b); --i)
                                                      ^
Main.java:10: error: illegal character: '#'
#define pb push_back
^
Main.java:11: error: illegal character: '#'
#define pf push_front
^
Main.java:12: error: illegal character: '#'
#define fi first
^
Main.java:13: error: illegal character: '#'
#define se second
^
Main.java:14: error: illegal character: '#'
#define mp make_pair
^
Main.java:15: error: illegal character: '#'
#define endl "\n"
^
Main.java:19: error: class, interface, or enum expected
typedef unsigned long long ull;
^
Main.java:20: error: class, interface, or enum expected
typedef long double ld;
^
Main.java:21: error: class, interface, or enum expected
typedef pair<int,int> pi;
^
Main.java:22: error: class, interface, or enum expected
typedef vector<int> vi;
^
Main.java:23: error: class, interface, or enum expected
typedef vector<pi> vii;
^
Main.java:25: error: class, interface, or enum expected
const int MOD = (int) 1e9+7;
^
Main.java:26: error: class, interface, or enum expected
const int INF = (int) 1e9+2804;
^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
                              ^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
                                             ^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
                                                 ^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
                                                     ^
Main.java:27: error: class, interface, or enum expected
inline ll gcd(ll a,ll b){ll r;while(b){r=a%b;a=b;b=r;}return a;}
                                                               ^
Main.java:28: error: class, interface, or enum expected
inline ll lcm(ll a,ll b){return a/gcd(a,b)*b;}
                                             ^
Main.java:32: error: class, interface, or enum expected
int main(){
^
Main.java:34: error: class, interface, or enum expected
	cin.tie(nullptr);
	^
Main.java:35: error: class, interface, or enum expected
	int TC; cin >> TC;
	^
Main.java:35: error: class, interface, or enum expected
	int TC; cin >> TC;
	        ^
Main.java:36: error: class, interface, or enum expected
	while(TC--){
	^
Main.java:37: error: class, interface, or enum expected
		int n; cin >> n;
		       ^
Main.java:38: error: class, interface, or enum expected
		ms(cnt, 0);
		^
Main.java:39: error: class, interface, or enum expected
		for(int i = 0; i < n; i++){
		^
Main.java:39: error: class, interface, or enum expected
		for(int i = 0; i < n; i++){
		               ^
Main.java:39: error: class, interface, or enum expected
		for(int i = 0; i < n; i++){
		                      ^
Main.java:40: error: class, interface, or enum expected
			int x; cin >> x;
			       ^
Main.java:41: error: class, interface, or enum expected
			if (x > 0) cnt[x] = 1;
			^
Main.java:42: error: class, interface, or enum expected
		}
		^
Main.java:43: error: class, interface, or enum expected
		for(int i = 1; i <= 1e6 + 1; i++){
		               ^
Main.java:43: error: class, interface, or enum expected
		for(int i = 1; i <= 1e6 + 1; i++){
		                             ^
Main.java:46: error: class, interface, or enum expected
				break;
				^
Main.java:47: error: class, interface, or enum expected
			}
			^
Main.java:51: error: class, interface, or enum expected
}
^
51 errors

Standard output is empty