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7oSkaaa

E. Jinping Trains

May 11th, 2022
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C++ 3.28 KB | None | 0 0
  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. #define cin_2d(vec, n, m) for(int i = 0; i < n; i++) for(int j = 0; j < m && cin >> vec[i][j]; j++);
  6. #define cout_2d(vec, n, m) for(int i = 0; i < n; i++, cout << "\n") for(int j = 0; j < m && cout << vec[i][j] << " "; j++);
  7. #define cout_map(mp) for(auto& [f, s] : mp) cout << f << "  " << s << "\n";
  8. #define Time cerr << "Time Taken: " << (float)clock() / CLOCKS_PER_SEC << " Secs" << "\n";
  9. #define fixed(n) fixed << setprecision(n)
  10. #define ceil(n, m) (((n) / (m)) + ((n) % (m) ? 1 : 0))
  11. #define fill(vec, value) memset(vec, value, sizeof(vec));
  12. #define Num_of_Digits(n) ((int)log10(n) + 1)
  13. #define mod_combine(a, b, m) (((a % m) * (b % m)) % m)
  14. #define all(vec) vec.begin(), vec.end()
  15. #define rall(vec) vec.rbegin(), vec.rend()
  16. #define sz(x) int(x.size())
  17. #define debug(x) cout << #x << ": " << (x) << "\n";
  18. #define fi first
  19. #define se second
  20. #define Pair pair < int, int >
  21. #define ll long long
  22. #define ull unsigned long long
  23. #define Mod  1'000'000'007
  24. #define OO 2'000'000'000
  25. #define EPS 1e-9
  26. #define PI acos(-1)
  27.  
  28. template < typename T = int > istream& operator >> (istream &in, vector < T > &v) {
  29.     for (auto &x: v) in >> x;
  30.     return in;
  31. }
  32.  
  33. template < typename T = int > ostream& operator << (ostream &out, const vector < T > &v) {
  34.     for (const T &x: v) out << x << ' ';
  35.     return out;
  36. }
  37.  
  38. void AhMeD_HoSSaM(){
  39.     ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
  40.     #ifndef ONLINE_JUDGE
  41.         freopen("input.txt", "r", stdin), freopen("output.txt", "w", stdout);
  42.     #endif
  43. }
  44.  
  45. struct Node {
  46.  
  47.     int v, t, c, f, s;
  48.  
  49.     Node(int V = 0, int T = 0, int C = 0, int F = 0, int S = 0){
  50.         v = V, t = T, c = C, f = F, s = S;
  51.     }
  52.  
  53.     bool operator < (const Node& n) const {
  54.         return t > n.t || (t == n.t && c > n.c);
  55.     }
  56.  
  57. };
  58.  
  59. istream& operator >> (istream &in, Node& n) {
  60.     in >> n.v >> n.t >> n.c >> n.f >> n.s;
  61.     return in;
  62. }
  63.  
  64. void Solve(){
  65.     int n, m;
  66.     cin >> n >> m;
  67.     vector < vector < Node > > adj(n + 10);
  68.     for(int i = 0, u; i < m && cin >> u; i++){
  69.         Node node;
  70.         cin >> node;
  71.         adj[u].push_back(node);
  72.     }
  73.     vector < int > timee(n + 10, OO), cost(n + 10, OO);
  74.     priority_queue < Node > dij;
  75.     dij.push(Node(1));
  76.     cost[1] = 0, timee[1] = 0;
  77.     auto get_time = [&](int f, int s, int time){
  78.         int l = 0, r = 1e8, ans = 0;
  79.         while(l <= r){
  80.             int mid = l + (r - l) / 2;
  81.             (s + (mid * f) - 1 >= time ? r = mid - 1, ans = mid : l = mid + 1);
  82.         }
  83.         return s + (ans * f);
  84.     };
  85.     while(!dij.empty()){
  86.         Node from = dij.top();
  87.         dij.pop();
  88.         for(auto& to : adj[from.v]){
  89.             int target = to.t + get_time(to.f, to.s, timee[from.v]);
  90.             if(timee[to.v] > target){
  91.                 timee[to.v] = target;
  92.                 cost[to.v] = cost[from.v] + to.c;
  93.                 dij.push(to);
  94.             }else if(timee[to.v] == target && cost[to.v] > cost[from.v] + to.c){
  95.                 cost[to.v] = cost[from.v] + to.c;
  96.                 dij.push(to);
  97.             }
  98.         }
  99.     }
  100.     cout << timee[n] << ' ' << cost[n] << '\n';
  101. }
  102.  
  103. int main(){
  104.     AhMeD_HoSSaM();
  105.     int t = 1;
  106.     //cin >> t;
  107.     while(t--)
  108.         Solve();
  109.     return 0;
  110. }
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