Submission #400006

#	Time	Username	Problem	Language	Result	Execution time	Memory
400006		Osama_Alkhodairy	The short shank; Redemption (BOI21_prison)	C++17	0 / 100	83 ms	7240 KiB

prison

#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

int n, d, t;
vector <int> a;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> d >> t;
    a.resize(n);
    for(auto &i : a) cin >> i;
    vector <int> g(n);
    for(int i = n - 2 ; i >= 0 ; i--){
        if(a[i + 1] <= t) g[i] = 0;
        else g[i] = g[i + 1] + 1;
    }
    vector <int> all;
    for(int i = 0 ; i + 1 < n ; i++){
        if(a[i] <= t && a[i + 1] <= t){
            a[i + 1] = min(a[i + 1], a[i] + 1);
        }
    }
    for(int i = 0 ; i + 1 < n ; i++){
        if(a[i] <= t && a[i + 1] > t){
            all.push_back(min(g[i], t - a[i]));
        }
    }
    sort(all.begin(), all.end());
    int ans = 0;
    for(int i = 0 ; i < n ; i++){
        ans += a[i] <= t;
    }
    while(all.size() && d > 0){
        all.pop_back();
        d--;
    }
    for(auto &i : all) ans += i;
    cout << ans << "\n";
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 10
• Subtask 3: 0 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 25
• Subtask 6: 0 / 20