Submission #1167665

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1167665	2025-03-16 11:08:58	spycoderyt	Olympic Bus (JOI20_ho_t4)	C++20	0 / 100	14 ms	4748 KiB

ho_t4

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#include <bits/stdc++.h>
#define f first
#define s second
using namespace std;
#define int long long 
const int N = 305;
const int M = 60005;
vector<pair<int,int> > A[N],B[N]; // actual and transpose
pair<int,int> edges[M];
const int inf = 1e12;
// int st[N],en[N],str[N],enr[N];
int weight[M],d[M];
int dis[4][N]; // st en str enr
int tmp[N];
int opt[2][N];
void djik(int u,int k) {
    priority_queue<pair<int,int> > pq; // -w, i
    pq.push({0,u});
    while(!pq.empty()) {
        auto [w,i] = pq.top();pq.pop();
        w*=-1;
        if(w>dis[k][i])continue;
        for(auto [nxt,ei] : (k <= 1 ? A[i] : B[i])) {
            if(dis[k][nxt] > w + weight[ei]) {
                dis[k][nxt] = w + weight[ei];
                if(k<=1){
                    opt[k][nxt] = ei;
                }
                pq.push({-dis[k][nxt], nxt});
            }
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 0 / 21
• Subtask 4: 0 / 63