Submission #777182

#	Time	Username	Problem	Language	Result	Execution time	Memory
777182		groshi	Cyberland (APIO23_cyberland)	C++17	97 / 100	3055 ms	169080 KiB

cyberland

#include<bits/stdc++.h>
#include "cyberland.h"
using namespace std;
struct wi{
    vector<int> Q;
    double dp[203];
    int co;
    int odw=0;
}*w;
double solve(int32_t n,int32_t m,int32_t k,int32_t h,vector<int32_t> x,vector<int32_t> y,vector<int32_t> c, vector<int32_t> arr)
{
    w=new wi[n+3];
    for(int i=0;i<m;i++)
    {
        w[x[i]].Q.push_back(y[i]);
        w[y[i]].Q.push_back(x[i]);
        w[x[i]].Q.push_back(c[i]);
        w[y[i]].Q.push_back(c[i]);
    }
    for(int i=0;i<n;i++)
        w[i].co=arr[i];
    priority_queue<pair<double,pair<int,int> > > kolejka;
    k=min(k,70);
    for(int i=0;i<n;i++)
        for(int j=0;j<=k;j++)
            w[i].dp[j]=1e18;
    kolejka.push({0.0,{0,0}});
    while(!kolejka.empty())
    {
        auto para=kolejka.top();
        kolejka.pop();
        int x=para.second.first;
        int typ=para.second.second;
        double ile=-para.first;
        if(ile>w[x].dp[typ])
            continue;
        if(x==h)
            continue;
        for(int i=0;i<w[x].Q.size();i+=2)
        {
            int pom=w[x].Q[i];
            double dodaj=w[x].Q[i+1];
            if(w[pom].co==0)
            {
                if(w[pom].dp[typ]==0.0)
                    continue;
                w[pom].dp[typ]=0.0;
                kolejka.push({0.0,{pom,typ}});
                continue;
            }
            if(w[pom].dp[typ]>ile+dodaj)
                kolejka.push({-ile-dodaj,{pom,typ}}),w[pom].dp[typ]=ile+dodaj;
            if(w[pom].co!=2)
                continue;
            dodaj+=ile;
            dodaj/=2;
            if(w[pom].dp[typ+1]>dodaj && typ+1<=k)
                kolejka.push({-dodaj,{pom,typ+1}}),w[pom].dp[typ+1]=dodaj;
        }
    }
    double minn=1e18;
    for(int i=0;i<=k;i++)
        minn=min(minn,w[h].dp[i]);
    if(minn==1e18)
        return -1;
    else return minn;
}

Compilation message (stderr)

cyberland.cpp: In function 'double solve(int32_t, int32_t, int32_t, int32_t, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
cyberland.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |         for(int i=0;i<w[x].Q.size();i+=2)
      |                     ~^~~~~~~~~~~~~~

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