Submission #817484

#	Time	Username	Problem	Language	Result	Execution time	Memory
817484		YassirSalama	Road Closures (APIO21_roads)	C++17	5 / 100	41 ms	6348 KiB

roads

#include "roads.h"
#include <vector>
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define OVL(v,s) for(auto x:v) cout<<x<<s;cout<<endl;
#define all(v) v.begin(),v.end()
#define F first
#define S second
#define pb push_back
void dbg_out() { cout << endl; }
template<typename Head, typename... Tail> void dbg_out(Head H, Tail... T) { cout << ' ' << H; dbg_out(T...); }
#define dbg(...) cout << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__);
#define endl "\n"
#define mod 1000000007
const ll INF=1e18;


vector<long long> minimum_closure_costs(int N, vector<int> U,
                                             vector<int> V,
                                             vector<int> W) {
    vector<ll> ans(N,0);
    vector<ll> costs;
    for(int i=0;i<W.size();i++) costs.pb(W[i]);
    sort(all(costs));
    for(int i=1;i<costs.size();i++) costs[i]+=costs[i-1];
    for(int k=0;k<N-1;k++){
        int cost=0;
        int kk=N-k-2;
        // dbg(kk);
        ans[k]=(ll)costs[kk];
    }
    return ans;
}


#ifdef IOI
int main() {
  int N;
  assert(1 == scanf("%d", &N));

  vector<int> U(N - 1), V(N - 1), W(N - 1);
  for (int i = 0; i < N - 1; ++i) {
    assert(3 == scanf("%d %d %d", &U[i], &V[i], &W[i]));
  }

  vector<long long> closure_costs = minimum_closure_costs(N, U, V, W);
  for (int i = 0; i < static_cast<int>(closure_costs.size()); ++i) {
    if (i > 0) {
      printf(" ");
    }
    printf("%lld",closure_costs[i]);
  }
  printf("\n");
  return 0;
}


#endif

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:24:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i=0;i<W.size();i++) costs.pb(W[i]);
      |                 ~^~~~~~~~~
roads.cpp:26:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for(int i=1;i<costs.size();i++) costs[i]+=costs[i-1];
      |                 ~^~~~~~~~~~~~~
roads.cpp:28:13: warning: unused variable 'cost' [-Wunused-variable]
   28 |         int cost=0;
      |             ^~~~

• Subtask 1: 5 / 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