Submission #1246790

#	Time	Username	Problem	Language	Result	Execution time	Memory
1246790		inkvizytor	Rabbit Carrot (LMIO19_triusis)	C++20	14 / 100	2 ms	584 KiB

triusis

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

#define ll long long

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<int> a (n, 0);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }
    set<pair<int, int>> s;
    s.insert({0, 0});
    int w = n;
    for (int i = 0; i < n; i++) {
        int x = a[i]-m*(i+1);
        auto y = s.lower_bound({x, 0});
        if (y == s.end()) {
            continue;
        }
        auto z = *y;
        pair<int, int> b = {x, z.second+1};
        w = min(w, n-b.second);
        if (y != s.begin()) {
            s.erase(--y);
        }
        if (z.first == x) {
            s.erase(z);
        }
        s.insert(b);
    }
    cout << w << '\n';
}

• Subtask 1: 14 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37