제출 #528303

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
528303		Adominator	Baloni (COCI15_baloni)	C++17	100 / 100	62 ms	18520 KiB

baloni

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

#define ar array
#define vo vector
#define pb push_back
#define all(x) begin(x), end(x)
#define sz(x) (ll)(x).size()

#define rep(i, a, b) for(ll i=a; i<b; i++) 
#define repd(i, a, b) for(ll i=a; i>=b; i--) 

int main() {
	cin.tie(0)->sync_with_stdio(0);

	ll n;
	cin >> n;

	ll h[ll(1e6)+1];
	memset(h, 0, sizeof h);

	vo<ll> A(n);
	rep(i, 0, n) 
		cin >> A[i];

	repd(i, n-1, 0) {
		ll a=A[i];
		if(h[a-1]) 
			h[a-1]--;
		h[a]++;
	}

	ll ans=0;
	rep(i, 0, ll(1e6+1))
		ans+=h[i];

	cout << ans << "\n";
}

• Subtask 1: 100 / 100