Submission #1048648

#TimeUsernameProblemLanguageResultExecution timeMemory
1048648mychecksedadSky Walking (IOI19_walk)C++17
0 / 100
8 ms9304 KiB
#include "walk.h" #include<bits/stdc++.h> using namespace std; #define ll long long int #define pb push_back #define vi vector<int> #define ff first #define ss second #define all(x) x.begin(),x.end() const int N = 1e5+100; int n, m; map<pair<int, int>, int> node; vector<pair<int,int>> G[N]; vector<int> F[N]; vector<pair<ll, int>> g[N]; long long min_distance(std::vector<int> x, std::vector<int> h, std::vector<int> l, std::vector<int> r, std::vector<int> y, int s, int gg) { n = x.size(); m = l.size(); return (ll) x.back()-x[0]+2*h[0]; // for(int i = 0; i < m; ++i){ // int u = l[i], v = r[i], L = y[i]; // F[u].pb(L); // F[v].pb(L); // G[u].pb({v, L}); // G[v].pb({u, L}); // } // int co = 0; // for(int i = 0; i < n; ++i){ // F[i].pb(0); // F[i].pb(h[i]); // sort(all(F[i])); // F[i].erase(unique(all(F[i])), F[i].end()); // for(int p: F[i]){ // node[{i, p}] = co++; // } // for(int j = 0; j < F[i].size(); ++j){ // // cout << F[i][j] << ' '; // for(int l = 1; l < F[i].size(); ++l){ // g[node[{i, F[i][j]}]].pb({node[{i, F[i][l]}], abs(F[i][j] - F[i][l])}); // g[node[{i, F[i][l]}]].pb({node[{i, F[i][j]}], abs(F[i][j] - F[i][l])}); // } // } // // cout << '\n'; // } // for(int i = 0; i < n; ++i){ // for(auto U: G[i]){ // int u = U.ff; ll w = U.ss; // if(u > i){ // int last = i; // for(int j = i; j <= u; ++j){ // if(h[j] >= w){ // g[node[{last, w}]].pb({node[{j, w}], abs(x[j]-x[last])}); // g[node[{j, w}]].pb({node[{last, w}], abs(x[j]-x[last])}); // last = j; // } // } // } // } // } // vector<ll> dist(co, INT_MAX); // vector<bool> vis(n); // priority_queue<pair<ll, int>> Q; // Q.push({0, node[{s, 0}]}); // dist[node[{s, 0}]] = 0; // while(!Q.empty()){ // int v = Q.top().ss; Q.pop(); // if(vis[v]) continue; // // cout << v << ' ' << dist[v] << '\n'; // vis[v] = 1; // for(auto U: g[v]){ // int u = U.ff; // ll w= U.ss; // if(dist[u] > dist[v] + w){ // dist[u] = dist[v] + w;; // Q.push({-dist[u], u}); // } // } // } // return dist[node[{gg, 0}]]; return 0; }
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