제출 #1206671

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1206671		HappyCapybara	추월 (IOI23_overtaking)	C++20	10 / 100	7 ms	8264 KiB

overtaking

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

#define ll long long

int N, M, X;
vector<int> S;
vector<vector<ll>> E;

void init(int L, int N, vector<ll> T, vector<int> W, int X, int M, vector<int> S){
    ::N = N;
    ::M = M;
    ::X = X;
    ::S = S;
    E.resize(N, vector<ll>(N));
    for (int i=0; i<N; i++) E[i][0] = T[i];
    for (int j=1; j<M; j++){
        ll cur = 0;
        vector<pair<pair<ll,ll>,int>> v;
        for (int i=0; i<N; i++) v.push_back({{E[i][j-1], W[i]}, i});
        sort(v.begin(), v.end());
        for (auto [dc, i] : v){
            ll exp = E[i][j-1]+(ll)W[i]*(ll)(S[j]-S[j-1]);
            cur = max(cur, exp);
            E[i][j] = cur;
        }
    }
    return;
}

ll arrival_time(ll Y){
    ll cur = Y;
    for (int j=1; j<M; j++){
        ll next = cur+(ll)X*(ll)(S[j]-S[j-1]);
        for (int i=0; i<N; i++){
            if (E[i][j-1] < cur) next = max(next, E[i][j]);
        }
        cur = next;
    }
    return cur;
}

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