Submission #1115490

#	Time	Username	Problem	Language	Result	Execution time	Memory
1115490		EfeBabagil	Jobs (BOI24_jobs)	C++14	0 / 100	62 ms	33436 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=1e5+5;
const int mod=1e9+7;
vector<int> arr[N];
int vis[N];
stack<int> st;
void dfs(int x)
{
    vis[x]=1;
    for(int i=0;i<arr[x].size();i++)
    {
        if(!vis[i])
        dfs(i);
    }
    st.push(x);
}
int32_t main()
{
    int n,s;
    cin>>n>>s;
    vector<array<int,3>> jobs(n+1);
    
    vector<int> visd(n+1);
    int mon=s;
    jobs[0]={0,-1,0};
    visd[0]=1;
    for(int i=1;i<=n;i++)
    {
        int a,b;
        cin>>a>>b;
        arr[i].push_back(b);
        jobs[i]={a,b,i};
        if(b==0)
        {
            if(a>0)
            {
                mon+=a;
                visd[i]=1;
            }
        }
    }
    for(int i=1;i<=n;i++)
    {
        if(!vis[i])
        dfs(i);
    }
     vector<int> topo;
    while(!st.empty())
    {
        topo.push_back(st.top());
        //cout<<st.top()<<" ";
        st.pop();
    }
    for(int i=0;i<=n;i++)
    {
        array<int,3> x=jobs[topo[i]];
        int prof=0;
        vector<int> done;
        while(!visd[x[2]])
        {
            prof+=x[0];
            done.push_back(x[2]);
            x=jobs[x[1]];
        }
        if(prof>0)
        {
            for(int i=0;i<done.size();i++)
            visd[done[i]]=1;
            mon+=prof;
        }
    }
    cout<<mon-s;
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void dfs(long long int)':
Main.cpp:13:18: 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]
   13 |     for(int i=0;i<arr[x].size();i++)
      |                 ~^~~~~~~~~~~~~~
Main.cpp: In function 'int32_t main()':
Main.cpp:70:26: 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]
   70 |             for(int i=0;i<done.size();i++)
      |                         ~^~~~~~~~~~~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 14
• Subtask 3: 0 / 15
• Subtask 4: 0 / 29
• Subtask 5: 0 / 31