Submission #1947390

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Source Code Expand

#include <bits/stdc++.h>
 
#define FOR(i, j, n) for (int i(j); i < n; ++i)
#define pb push_back
#define all(c) (c).begin(), (c).end()
#define dbg(x) std::cerr<<#x<<" = " << (x) << std::endl
#define pnl(x) std::cout << x << "\n"
 
typedef	std::vector<int>	vi;
typedef std::pair<int,int>	ii;
typedef std::vector<std::string>	vs;
typedef std::vector<ii>	vii;
typedef std::vector<long long>	vl;
typedef	long long ll;
 
 
const int	NB_D = 4;
const int	DY[] = {-1, 1, 0, 0};
const int	DX[] = {0, 0, -1, 1};
 
int		main(void)
{
	std::ios_base::sync_with_stdio(false);
	std::set<int>	set;
	int	N;
	std::cin >> N;
	for (int i(0); i < N; ++i)
	{
		int	a;
		std::cin >> a;
		set.insert(a);
	}
	std::cout << set.size() << std::endl;
}

Submission Info

Judge Result