Submission #1243546

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Source Code Expand

#include "bits/stdc++.h"
#include <regex>

using namespace std;

#ifndef _DEBUG
#define main_ main
#endif
#define FOR(i,s,e) for (int i = int(s); i != int(e); i++)
#define INF (INT_MAX/2)
#define EPS (1.0e-8)
#define LINF (LONG_MAX/2)

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;

template <typename T>
using keyVal = pair<string, T>;
template<typename T>
bool val_greater(const keyVal<T>& left, const keyVal<T>& right) {
	return left.second > right.second;
}

int main_() {
	int N;
	cin >> N;
	vi A(N);
	FOR(i,0,N) {
		cin >> A[i];
	}

	int cnt = 0;
	FOR(i, 0, N) {
		FOR(j, i+1, N) {
			if (A[j] == A[i]) {
				cnt++;
				break;
			}
		}
	}

	cout << cnt << endl;
	return 0;
}

Submission Info

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