Submission #467608

#	Time	Username	Problem	Language	Result	Execution time	Memory
467608		couplefire	Segway (COI19_segway)	C++17	0 / 100	5 ms	332 KiB

segway

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

struct node{
    int pos, time, free, id;
    bool operator < (const node& o) const{
        if(time!=o.time) return time>o.time;
        return pos<o.pos;
    }
};

int n, m, ans[20005], cnt[305];
array<int, 3> arr[20005];
bool good[305];
priority_queue<node> pq;

int main(){
    // freopen("a.in", "r", stdin);
    cin.tie(0)->sync_with_stdio(0);
    cin >> n;
    for(int i = 0; i<n; ++i)
        cin >> arr[i][0] >> arr[i][1] >> arr[i][2];
    cin >> m;
    for(int i = 0; i<m; ++i){
        int a; cin >> a;
        good[a] = 1;
    } cnt[0] = n;
    for(int i = 0; i<n; ++i)
        pq.push({1, arr[i][0], 0, i});
    while(pq.size()){
        auto [pos, time, free, id] = pq.top(); pq.pop(); cnt[pos]++;
        if(pos==300){ans[id] = time; continue;}
        if(free) pq.push({pos+1, time+1, free-1, id});
        else if(!good[pos] || !cnt[pos+1]) pq.push({pos+1, time+arr[id][pos/100], 0, id});
        else pq.push({pos+1, time+1, cnt[pos+1]-1, id});
    }
    for(int i = 0; i<n; ++i)
        cout << ans[i] << '\n';
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 40
• Subtask 3: 0 / 45