Submission #1170662

#	Time	Username	Problem	Language	Result	Execution time	Memory
1170662		kim	은하철도 (APIO24_train)	C++20	0 / 100	1092 ms	10312 KiB

train

#include "train.h"
#include<bits/stdc++.h>
using namespace std;
using ll=long long;
using pii=pair<int,int>;
#define f first
#define s second
#define eb emplace_back
#define sz(x) (int)x.size()
#define add(x,y) ((x+y)%md)
#define Add(x,y) (x=add(x,y))
#define mul(x,y) ((x*y)%md)
#define Mul(x,y) (x=mul(x,y))
template<class T> T chmn(T &x,T y){ return x=min(x,y); }
template<class T> T chmx(T &x,T y){ return x=max(x,y); }
const int inf=1e9;
const ll linf=1e18;
const ll md=1e9+7;

vector<pair<ll,int>> dp[100005];

long long solve(int N, int M, int W, std::vector<int> T, std::vector<int> X, std::vector<int> Y,
                std::vector<int> A, std::vector<int> B, std::vector<int> C, std::vector<int> L,
                std::vector<int> R) {
  //
  
  dp[0].eb(0,-1);
  vector<int> v(M);
  iota(v.begin(),v.end(),0);
  sort(v.begin(),v.end(),[&](const int &l,const int &r){ return B[l]==B[r] ? A[l]<A[r] : B[l]<B[r]; });
  for(auto &i:v){
    int l=0,r=sz(dp[X[i]])-1;
    ll cost=linf;
    for(int j=l;j<=r;++j) if(dp[X[i]][j].s <= A[i]) chmn(cost, dp[X[i]][j].f);
    if(cost<linf){
      cost+=C[i];
      dp[Y[i]].eb(cost,B[i]);
    }
  }
  if(dp[N-1].empty()) return -1;
  ll res=1e18;
  for(auto &[c,b]:dp[N-1]) chmn(res,c);
  return res;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 30
• Subtask 4: 0 / 60