Submission #1332814

#	Time	Username	Problem	Language	Result	Execution time	Memory
1332814		Zone_zonee	Baloni (COCI15_baloni)	C++20	0 / 100	54 ms	8720 KiB

baloni

#include <bits/stdc++.h>
using namespace std;
const int N = 1e6+10;

int a[N], idx[N];
vector<int> q[N];
int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    int n;
    cin >> n;
    for(int i = 1; i <= n; ++i){
        cin >> a[i];
        q[a[i]].push_back(i);
    }
    int ans = 0;
    for(int i = 1; i <= n; ++i){
        if(idx[a[i]] >= q[a[i]].size() || q[a[i]][idx[a[i]]] != i) continue;
        while(idx[a[i]] < q[a[i]].size() && q[a[i]][idx[a[i]]] >= i) idx[a[i]--]++;
        ans++;
    }
    cout << ans << '\n';
}

• Subtask 1: 0 / 100