Submission #528631

#	Time	Username	Problem	Language	Result	Execution time	Memory
528631		DanerZein	Road Closures (APIO21_roads)	C++14	0 / 100	42 ms	5516 KiB

roads

#include "roads.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<int,ii> iii;
const int MAX_N=2e5+10;
bool vis[MAX_N];
int n;
std::vector<long long> minimum_closure_costs(int N, std::vector<int> U,
                                             std::vector<int> V,
                                             std::vector<int> W) {
  n=N;
  vector<ll> res;
  vector<iii> ed;
  ll s=0;
  for(int i=0;i<U.size();i++){
    ed.push_back(iii(W[i],ii(U[i],V[i])));
    s+=W[i];
  }
  res.push_back(s);
  s=0;
  sort(ed.begin(),ed.end());
  for(int i=0;i<ed.size();i++){
    int u=ed[i].second.first;
    int v=ed[i].second.second;
    if(!vis[u] && !vis[v]){
      vis[u]=vis[v]=1;
    }
    else 
      s+=ed[i].first;
  }
  res.push_back(s);
  while(res.size()!=N) res.push_back(0);
  return res;
}

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:17:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |   for(int i=0;i<U.size();i++){
      |               ~^~~~~~~~~
roads.cpp:24:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |   for(int i=0;i<ed.size();i++){
      |               ~^~~~~~~~~~
roads.cpp:34:19: warning: comparison of integer expressions of different signedness: 'std::vector<long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   34 |   while(res.size()!=N) res.push_back(0);
      |         ~~~~~~~~~~^~~

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