Submission #1311069

#	Time	Username	Problem	Language	Result	Execution time	Memory
1311069		aaaaaaaa	Bubble Sort Machine (JOI25_bubble)	C++20	15 / 100	127 ms	7664 KiB

bubble

#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
    ios::sync_with_stdio(0);
    cin.tie(nullptr); cout.tie(nullptr);
    int n, q, upd = 0;
    cin >> n;
    vector<int> a(n + 1, 0), ones;
    for(int i = 1; i <= n; ++i) cin >> a[i];
    for(int i = 1; i <= n; ++i){
        if(a[i] == 1) ones.push_back(i);
    }
    cin >> q;
    auto sum = [&](int i) -> int {
        if(i == 0 || (int) ones.size() == 0) return 0;
        int ans = 0, st = 0, en = (int) ones.size() - 1;
        while(st <= en){
            int mid = st + (en - st) / 2;
            if((ones[mid] - upd) <= i){
                st = mid + 1;
            }else{
                en = mid - 1;
            }
        }
        return min(i, st);
    };
    while(q--){
        int t, l, r;
        cin >> t;
        if(t == 1){
            upd += 1;
        }else{
            cin >> l >> r;
            cout << (r - l + 1) * 2 - sum(r) + sum(l - 1) << "\n";
        }
    }
    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 15 / 15
• Subtask 4: 0 / 23
• Subtask 5: 0 / 29
• Subtask 6: 0 / 17