Submission #737314

#	Time	Username	Problem	Language	Result	Execution time	Memory
737314		keisuke6	Road Closures (APIO21_roads)	C++14	7 / 100	68 ms	6808 KiB

roads

#include "roads.h"

#include <vector>
#include <algorithm>
using namespace std;
typedef long long ll;
std::vector<ll> minimum_closure_costs(int N, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
  vector<ll> A = {};
  ll a = 0;
  for(int i=0;i<W.size();i++) a += W[i];
  A.push_back(a);
  vector<ll> dp(N,1e18);
  dp[0] = 0;
  for(int i=0;i<N-1;i++){
    dp[i+1] = min(dp[i+1],dp[i]+W[i]);
    if(i+2 < N) dp[i+2] = min(dp[i+2],dp[i]+W[i+1]);
  }
  A.push_back(min(dp[N-2],dp[N-1]));
  while(A.size() != N) A.push_back(0);
  return A;
}

Compilation message (stderr)

roads.cpp: In function 'std::vector<long long int> minimum_closure_costs(int, std::vector<int>, std::vector<int>, std::vector<int>)':
roads.cpp:10:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |   for(int i=0;i<W.size();i++) a += W[i];
      |               ~^~~~~~~~~
roads.cpp:19:18: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |   while(A.size() != N) A.push_back(0);
      |         ~~~~~~~~~^~~~

• Subtask 1: 0 / 5
• Subtask 2: 7 / 7
• Subtask 3: 0 / 14
• Subtask 4: 0 / 10
• Subtask 5: 0 / 17
• Subtask 6: 0 / 25
• Subtask 7: 0 / 22