Submission #777164

#	Time	Username	Problem	Language	Result	Execution time	Memory
777164		groshi	Cyberland (APIO23_cyberland)	C++17	Compilation error	0 ms	0 KiB

cyberland

#include<bits/stdc++.h>
#define int long long
using namespace std;
struct wi{
    vector<int> Q;
    double dp[203];
    int co;
    int odw=0;
}*w;
vector<int> moge;
void dfs(int x,int nie)
{
    w[x].odw=1;
    if(x==nie)
        return;
    if(w[x].co==0)
        moge.push_back(x);
    for(int i=0;i<w[x].Q.size();i+=2)
        if(w[w[x].Q[i]].odw==0)
            dfs(w[x].Q[i],nie);
}
double solve(int n,int m,int k,int h,vector<int> x,vector<int> y,vector<int> c, vector<int> 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];
    moge.clear();
    dfs(0,h);
    moge.push_back(0);
    priority_queue<pair<double,pair<int,int> > > kolejka;
    k=min(k,200LL);
    for(int i=0;i<n;i++)
        for(int j=0;j<=k;j++)
            w[i].dp[j]=1e18;
    for(int i=0;i<moge.size();i++)
        kolejka.push({0.0,{moge[i],0}}),w[moge[i]].dp[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].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 'void dfs(long long int, long long int)':
cyberland.cpp:18:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for(int i=0;i<w[x].Q.size();i+=2)
      |                 ~^~~~~~~~~~~~~~
cyberland.cpp: In function 'double solve(long long int, long long int, long long int, long long int, std::vector<long long int>, std::vector<long long int>, std::vector<long long int>, std::vector<long long int>)':
cyberland.cpp:42:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for(int i=0;i<moge.size();i++)
      |                 ~^~~~~~~~~~~~
cyberland.cpp:55:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int i=0;i<w[x].Q.size();i+=2)
      |                     ~^~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccdXIn54.o: in function `main':
grader.cpp:(.text.startup+0x696): undefined reference to `solve(int, int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status