Submission #708990

#	Time	Username	Problem	Language	Result	Execution time	Memory
708990		vjudge1	Baloni (COCI15_baloni)	C++17	100 / 100	292 ms	548 KiB

baloni

#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define sz size()
using namespace std;
int main() {
    ll n;
    cin>>n;
    ll a,x=0;
    map<ll,ll> m;
    for(int i=0;i<n;i++){
        cin>>a;
        if(m[a+1]==0) x++;
        else m[a+1]--;
        m[a]++;
    }
    cout<<x;
    return 0;
}

• Subtask 1: 100 / 100