Submission #1019618

#	Time	Username	Problem	Language	Result	Execution time	Memory
1019618		huutuan	Roller Coaster Railroad (IOI16_railroad)	C++14	34 / 100	35 ms	13904 KiB

railroad

#include "railroad.h"

#include <bits/stdc++.h>

using namespace std;

#define int long long

long long plan_roller_coaster(vector<int32_t> s, vector<int32_t> t) {
   int n=(int)s.size();
   vector<vector<int>> f(1<<n, vector<int>(n, 1e18));
   for (int i=0; i<n; ++i) f[1<<i][i]=0;
   for (int i=0; i<(1<<n); ++i) for (int j=0; j<n; ++j) if (i>>j&1 && f[i][j]<1e18){
      for (int k=0; k<n; ++k) if (!(i>>k&1)){
         f[i|1<<k][k]=min(f[i|1<<k][k], f[i][j]+max(0, t[j]-s[k]));
      }
   }
   return *min_element(f[(1<<n)-1].begin(), f[(1<<n)-1].end());
}

• Subtask 1: 11 / 11
• Subtask 2: 23 / 23
• Subtask 3: 0 / 30
• Subtask 4: 0 / 36