Submission #1947172

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Source Code Expand

/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author HARSHAD
 */

#include <bits/stdc++.h>
#define f(i,n) for(int i=0;i<n;i++)
#define rep(i,a,b) for(int i=a;i<=b;i++)
using namespace std;
typedef vector<int> vi;
typedef long long int ll;
vector<vector<int>> adj;

class B {
public:
	void solve(std::istream& in, std::ostream& out) {
		int n; in>>n;
        set<int> s;
        f(i, n){
            int x; in>>x;
            s.insert(x);
        }
        out<<s.size();

	}
    void inG(int m, istream& in){ int u,v; adj = vector<vi>(200005);f(i, m){ in>>u>>v; adj[u].push_back(v); adj[v].push_back(u); }}
};


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
	B solver;
	std::istream& in(std::cin);
	std::ostream& out(std::cout);
	solver.solve(in, out);
	return 0;
}

Submission Info

Judge Result