oj.uz

Submission #914652

# Submission time Handle Problem Language Result Execution time Memory
914652 2024-01-22T13:22:58 Z 12345678 Palembang Bridges (APIO15_bridge) C++17
0 / 100
 1 ms 1116 KB 
#include <bits/stdc++.h>
 
using namespace std;
 
const int nx=1e5+5;

#define ll long long

int k, n, b, d, cnt;
char a, c;
vector<int> v, l;
vector<pair<int, int>> p(nx);
long long res, ans=LLONG_MAX;
 
ll cal(int b1, int b2)
{
    ll tmp=0;
    for (int i=0; i<cnt; i++) tmp+=min(abs(p[i].first-b1)+abs(p[i].second-b1), abs(p[i].first-b2)+abs(p[i].second-b2))+1; //cout<<"here "<<p[i].first<<' '<<p[i].second<<' '<<tmp<<'\n';
    return tmp;
}

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>k>>n;
    if (k==1)
    {
        for (int i=0; i<n; i++)
        {
            cin>>a>>b>>c>>d;
            if (a==c) 
            {
                res+=abs(b-d);
                continue;
            }
            v.push_back(b);
            v.push_back(d);
            res++;
        }
        sort(v.begin(), v.end());
        int md=v[v.size()/2];
        for (auto x:v) res+=abs(x-md);
        cout<<res;
    }
    else
    {
        for (int i=0; i<n; i++)
        {
            cin>>a>>b>>c>>d;
            if (a==c) res+=abs(b-d);
            else p[cnt++]={b, d}, l.push_back(b), l.push_back(d);
        }
        for (int i=0; i<l.size(); i++) for (int j=i; j<l.size(); j++) ans=min(ans, res+cal(l[i], l[j])); //cout<<res<<' '<<l[i]<<' '<<l[j]<<' '<<cal(l[i], l[j])<<'\n';
    }
    cout<<ans;
}

/*
2 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/

Compilation message

bridge.cpp: In function 'int main()':
bridge.cpp:53:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int i=0; i<l.size(); i++) for (int j=i; j<l.size(); j++) ans=min(ans, res+cal(l[i], l[j])); //cout<<res<<' '<<l[i]<<' '<<l[j]<<' '<<cal(l[i], l[j])<<'\n';
      |                       ~^~~~~~~~~
bridge.cpp:53:55: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for (int i=0; i<l.size(); i++) for (int j=i; j<l.size(); j++) ans=min(ans, res+cal(l[i], l[j])); //cout<<res<<' '<<l[i]<<' '<<l[j]<<' '<<cal(l[i], l[j])<<'\n';
      |                                                      ~^~~~~~~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1116 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1116 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1116 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1112 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 1116 KB Output isn't correct
2 Halted 0 ms 0 KB -