oj.uz

Submission #777168

# Submission time Handle Problem Language Result Execution time Memory
777168 2023-07-08T18:25:57 Z groshi Cyberland (APIO23_cyberland) C++17
49 / 100
 3000 ms 199240 KB 
#include<bits/stdc++.h>
#include "cyberland.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(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];
    moge.clear();
    dfs(0,h);
    moge.push_back(0);
    priority_queue<pair<double,pair<int,int> > > kolejka;
    k=min(k,200);
    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

cyberland.cpp: In function 'void dfs(long long int, long long int)':
cyberland.cpp:19:18: 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]
   19 |     for(int i=0;i<w[x].Q.size();i+=2)
      |                 ~^~~~~~~~~~~~~~
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:43:18: 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]
   43 |     for(int i=0;i<moge.size();i++)
      |                 ~^~~~~~~~~~~~
cyberland.cpp:56:22: 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]
   56 |         for(int i=0;i<w[x].Q.size();i+=2)
      |                     ~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 48 ms 90768 KB Correct.
2 Correct 48 ms 90912 KB Correct.

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 75608 KB Correct.
2 Correct 51 ms 91208 KB Correct.
3 Correct 50 ms 86644 KB Correct.
4 Correct 51 ms 89836 KB Correct.
5 Correct 51 ms 90108 KB Correct.
6 Correct 42 ms 68692 KB Correct.
7 Correct 53 ms 91128 KB Correct.
8 Correct 23 ms 34128 KB Correct.
9 Correct 51 ms 92096 KB Correct.
10 Correct 52 ms 90644 KB Correct.

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 87372 KB Correct.
2 Correct 53 ms 85600 KB Correct.
3 Correct 49 ms 80436 KB Correct.
4 Correct 54 ms 92452 KB Correct.
5 Correct 54 ms 92460 KB Correct.
6 Correct 12 ms 14440 KB Correct.

Subtask #4
0.0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3061 ms 104628 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 135 ms 85196 KB Correct.
2 Correct 141 ms 88252 KB Correct.
3 Correct 151 ms 87260 KB Correct.
4 Correct 1032 ms 67260 KB Correct.
5 Correct 61 ms 91700 KB Correct.

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 57 ms 87984 KB Correct.
2 Correct 59 ms 77312 KB Correct.
3 Correct 84 ms 131280 KB Correct.
4 Correct 60 ms 64448 KB Correct.
5 Correct 53 ms 93600 KB Correct.
6 Correct 54 ms 80440 KB Correct.

Subtask #7
0.0 / 29.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3081 ms 29420 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0.0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3071 ms 199240 KB Time limit exceeded
2 Halted 0 ms 0 KB -