Submission #533695

#	Time	Username	Problem	Language	Result	Execution time	Memory
533695		new_acc	Palembang Bridges (APIO15_bridge)	C++14	0 / 100	1 ms	204 KiB

bridge

#include<bits/stdc++.h>
#define fi first
#define se second
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
const int N=1e5+10;
pair<ll,ll> t[N];
int main(){
    //n^3
    int n,k;
    cin>>k>>n;
    ll res=0;
    int l=0;
    for(int i=1;i<=n;i++){
        char x,d;
        ll a,b;
        cin>>x>>a>>d>>b;
        if(x==d) res+=(ll)abs(a-b);
        else t[++l]={a,b},res++;
    }
    n=l;
    vector<ll>v;
    for(int i=1;i<=n;i++) v.push_back(t[i].fi),v.push_back(t[i].se);
    ll res2=LLONG_MAX;
    for(int i=0;i<v.size();i++){
        for(int j=i;j<v.size();j++){
            ll curr=0;
            for(int xd=1;xd<=n;xd++)
                curr+=(ll)min(abs(t[xd].fi-v[i])+abs(t[xd].se-v[i]),abs(t[xd].fi-v[j])+abs(t[xd].se-v[j]));
            res2=min(res2,curr);
        }
    }
    cout<<res2+res<<"\n";
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:27:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |     for(int i=0;i<v.size();i++){
      |                 ~^~~~~~~~~
bridge.cpp:28:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int j=i;j<v.size();j++){
      |                     ~^~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 14
• Subtask 3: 0 / 9
• Subtask 4: 0 / 32
• Subtask 5: 0 / 37