Submission #976618

#	Time	Username	Problem	Language	Result	Execution time	Memory
976618		rakhim_ova	Cyberland (APIO23_cyberland)	C++17	5 / 100	17 ms	2140 KiB

cyberland

#include "cyberland.h"

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

double solve(int N, int M, int K, int H, std::vector<int> x, std::vector<int> y, std::vector<int> c, std::vector<int> arr) {
    int n=N, m=M, k=K, h=H;
    if(n>3){
        return -1;
    }
    if(h==0) return 0;
    vector<vector<double>> ct(n, vector<double> (n, -1));
    for(int i=0; i<m; i++){
        ct[x[i]][y[i]]=c[i];
        ct[y[i]][x[i]]=c[i];
    }
    double res=-1;
    if(ct[0][h]>=0){
        res=ct[0][h];
    }
    if(n<3) return res;
    if(ct[0][3-h]>=0 && ct[3-h][h]>=0){
        if(arr[3-h]==1){
            if(res<-0.5){
                res=ct[0][3-h]+ct[3-h][h];
            }
            else{
                res=min(res, ct[0][3-h]+ct[3-h][h]);
            }
        }
        else if(arr[3-h]==0){
            if(res<-0.5){
                res=ct[3-h][h];
            }
            else{
                res=min(res, ct[3-h][h]);
            }
        }
        else{
            if(k>0){
                if(res<-0.5){
                    res=(double)ct[0][3-h]/2+ct[3-h][h];
                }
                else{
                    res=min(res, (double)ct[0][3-h]/2+ct[3-h][h]);
                }
            }
            else{
                if(res<-0.5){
                    res=ct[0][3-h]+ct[3-h][h];
                }
                else{
                    res=min(res, ct[0][3-h]+ct[3-h][h]);
                }
            }

        }
    }
    return res;
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 13
• Subtask 4: 0 / 19
• Subtask 5: 0 / 7
• Subtask 6: 0 / 16
• Subtask 7: 0 / 29
• Subtask 8: 0 / 3