Submission #1305092

#	Time	Username	Problem	Language	Result	Execution time	Memory
1305092		hssaan_arif	Index (COCI21_index)	C++20	20 / 110	2594 ms	1736 KiB

index

#include <bits/stdc++.h>
using namespace std;

#define endl "\n"
#define pb push_back
#define int long long
#define fi first
#define se second

const int N = 3e5 + 5, M = 1e9 + 7, LG = 20;

int n , A[N] ,q  , l ,r;

void solve(){
    cin >> n >> q;

    for (int i=1 ; i<=n ; i++) cin >> A[i];

    while(q--){
        cin >> l >> r;
        vector<int> s;

        for (int k=l ; k<=r ; k++){
            s.pb(A[k]);
        }

        sort(s.begin() , s.end());
        reverse(s.begin() , s.end());

        int ans = 0;

        for (int i=0 ; i<s.size() ; i++){
            if (s[i] >= i+1){
                ans = i+1;
            }
        }

        cout << ans << endl;
    }
}

signed main(){
    // freopen("" , "r" , stdin);
    // freopen("" , "w" , stdout);
    // cout << setprecision(30);
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int ts = 1;
    // cin >> ts;
    while(ts--){
        solve();
    }
}

• Subtask 1: 20 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50