제출 #823552

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
823552		VMaksimoski008	Baloni (COCI15_baloni)	C++14	100 / 100	44 ms	7804 KiB

baloni

#include <bits/stdc++.h>

#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define uniq(x) x.erase(unique(all(x)), x.end())
#define rall(x) x.rbegin(), x.rend()

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e6 + 5;

void setIO() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
}

int32_t main() {
    setIO();

    int n, x;
    cin >> n;
    int ans = 0;

    vector<int> occ(maxn, 0);

    for(int i=0; i<n; i++) {
        cin >> x;
        occ[x]++;
        if(occ[x+1] > 0) occ[x+1]--;
        else ans++;
    }

    cout << ans << '\n';
    return 0;
}

• Subtask 1: 100 / 100