Submission #1038363

#	Time	Username	Problem	Language	Result	Execution time	Memory
1038363		MilosMilutinovic	Baloni (COCI15_baloni)	C++14	100 / 100	59 ms	31408 KiB

baloni

#include <bits/stdc++.h>
//#define int long long
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define sc second
#define endl "\n"
#define pii pair<int,int>
 
using namespace std;
 
const int MAXN = 1e6+5;
const int mod7 = 1e9+7;
const long long inf = 1e18;
 
vector<vector<int>> closest(MAXN);
vector<int> nxt(MAXN,-1);
vector<int> niz;
 
 
int main()
{
    ios_base::sync_with_stdio(false),cin.tie(0), cout.tie(0);
    int tt=1;
    //cin >> tt;
    while(tt--)
    {
        int n;
        cin >> n;
        niz.resize(n);
        for(int i=0; i<n; i++)
        {
            cin >> niz[i];
            closest[niz[i]].push_back(i);
            if(!closest[niz[i]+1].empty())
            {
                nxt[closest[niz[i]+1].back()] = i;
                closest[niz[i]+1].pop_back();
            }
        }
        int rez = 0;
        for(int i=0; i<n; i++)
        {
            if(nxt[i] == -2)continue;
            int br = i;
            while(br !=-1)
            {
                int pre = br;
                br = nxt[br];
                nxt[pre] = -2;
            }
            rez++;
        }
        cout << rez<< endl;
 
    }
}

• Subtask 1: 100 / 100