Submission #1102286

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102286		ro9669	Nile (IOI24_nile)	C++17	0 / 100	2072 ms	4944 KiB

nile

#include <bits/stdc++.h>
#define fi first
#define se second
#define all(v) v.begin() , v.end()
#define sz(v) int(v.size())
#define unq(v) sort(all(v)); v.resize(unique(all(v)) - v.begin());
#include "nile.h"
using namespace std;

typedef long long ll;
typedef pair<int , int> ii;
typedef pair<long long , int> lli;

const int maxN = int(2e5)+7;

ll dp[maxN];
vector<int> w , a , b , e , id;
vector<ll> res;

vector<long long> calculate_costs(vector<int> _w , vector<int> _a , vector<int> _b , vector<int> _e){
    w = _w; a = _w; b = _b; e = _e;
    int n = sz(w);
    id.resize(n);
    for (int i = 0 ; i < n ; i++) id[i] = i;
    sort(all(id) , [](int x , int y){
         return w[x] < w[y];
    });
    for (int d : e){
        dp[0] = 0;
        for (int i = 0 ; i < n ; i++){
            ll s = 0;
            int x = INT_MAX;
            dp[i + 1] = ll(1e18);
            for (int j = i ; j >= 0 ; j--){
                s += b[id[j]];
                x = min(x , a[id[j]] - b[id[j]]);
                if (w[id[i]] - w[id[j]] <= d){
                    if ((i - j)&1){
                        dp[i + 1] = min(dp[i + 1] , dp[j] + s);
                    }
                    else{
                        dp[i + 1] = min(dp[i + 1] , dp[j] + s + 1ll * x);
                    }
                }
                else{
                    break;
                }
            }
        }
        res.push_back(dp[n]);
    }
    return res;
}

• Subtask 0: 0 / 0
• Subtask 1: 0 / 6
• Subtask 2: 0 / 13
• Subtask 3: 0 / 17
• Subtask 4: 0 / 11
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15
• Subtask 7: 0 / 18