Submission #156129

#	Time	Username	Problem	Language	Result	Execution time	Memory
156129		Moses	Baloni (COCI15_baloni)	C++14	100 / 100	409 ms	7544 KiB

baloni

// Created by AboAbdoMC
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

#define db1(x) cout<<#x<<"="<<x<<'\n'
#define db2(x,y) cout<<#x<<"="<<x<<","<<#y<<"="<<y<<'\n'
#define db3(x,y,z) cout<<#x<<"="<<x<<","<<#y<<"="<<y<<","<<#z<<"="<<z<<'\n'
#define rep(i,n) for(int i=0;i<(n);++i)
#define repA(i,a,n) for(int i=a;i<=(n);++i)
#define repD(i,a,n) for(int i=a;i>=(n);--i)
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define ll long long

using namespace std;
using namespace __gnu_pbds;

typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> indexed_set;

const int OO = 1e9+7;
const int MOD = 1e9+7;
const int N = 1e6+7;

int h[N];

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    
    int n;
    cin >> n;
    rep(i,n) cin >> h[i];
    multiset<int> st;
    rep(i,n)
    {
    	if (st.find(h[i]) == st.end())
    	{
    		st.insert(h[i]-1);
    	}
    	else
    	{
    		st.erase(st.find(h[i]));
    		st.insert(h[i]-1);
    	}
    }
    cout << st.size() << '\n';
    return 0;
}

• Subtask 1: 100 / 100