Submission #1095187

#	Time	Username	Problem	Language	Result	Execution time	Memory
1095187		dpsaveslives	Palembang Bridges (APIO15_bridge)	C++17	22 / 100	36 ms	4552 KiB

bridge

#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
using namespace std;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int K,N; cin >> K >> N;
    if(K == 2){
        cout << 0 << "\n";
        return 0;
    }
    ll ans = 0;
    vector<int> vec;
    vector<pair<int,int>> dif;
    for(int i = 0;i<N;++i){
        char p1,p2; int s,t; cin >> p1 >> s >> p2 >> t;
        if(p1 != p2){
            vec.push_back(s); vec.push_back(t);
            dif.push_back({s,t});
        }
        else{
            ans += abs(s-t);
        }
    }
    if(!vec.size()){
        cout << ans << "\n";
        return 0;
    }
    sort(vec.begin(),vec.end());
    int med = vec[vec.size()/2];
    for(int i = 0;i<dif.size();++i){
        ans += abs(dif[i].f-med)+abs(dif[i].s-med)+1;
    }
    cout << ans << "\n";
    return 0;
}

Compilation message (stderr)

bridge.cpp: In function 'int main()':
bridge.cpp:34:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |     for(int i = 0;i<dif.size();++i){
      |                   ~^~~~~~~~~~~

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