Submission #1115546

#	Time	Username	Problem	Language	Result	Execution time	Memory
1115546		EfeBabagil	Jobs (BOI24_jobs)	C++14	0 / 100	159 ms	10436 KiB

Main

#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N=1e5+5;
const int mod=1e9+7;

int32_t main()
{
    int n,s;
    cin>>n>>s;
    vector<array<int,3>> jobs(n+1);
    
    vector<int> vis(n+1);
    int mon=s;
    jobs[0]={0,-1,0};
    vis[0]=1;
    for(int i=1;i<=n;i++)
    {
        int a,b;
        cin>>a>>b;
        
        jobs[i]={a,b,i};
        if(b==0)
        {
            if(a>0)
            {
                mon+=a;
                vis[i]=1;
            }
        }
    }
    vector<pair<int,int>> opt;
    for(int i=n;i>0;i--)
    {
        
        array<int,3> x=jobs[i];
        
        if(x[0]<=0)
        continue;
        int prof=0;
        vector<int> done;
        int mn=0;
        //6 5 4    3
        while(!vis[x[2]])
        {
            done.push_back(x[2]);
            prof+=x[0];
            if(prof<=0){
            break;
            }
            if(mn+x[0]<0)
                mn+=x[0];
            else
            mn=0;
            x=jobs[x[1]];
            
        }
        
        if(prof>0)
        {
            for(int i=0;i<done.size();i++)
            vis[done[i]]=1;
            opt.push_back({-mn,prof});
        }
        
    }
    sort(opt.begin(),opt.end());
    
    for(int i=0;i<opt.size();i++)
    {
        //cout<<opt[i].first<<" "<<opt[i].second<<endl;
        if(opt[i].first<=mon<<opt[i].second>0)
        {
            mon+=opt[i].second;
        }
    }
    cout<<mon-s;
    return 0;
}
// 1->  3 0
// 2-> -3 1
// 3-> -3 0
// 4->  2 1
// 5->  6 3
// 6-> -4 5

Compilation message (stderr)

Main.cpp: In function 'int32_t main()':
Main.cpp:62:26: 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]
   62 |             for(int i=0;i<done.size();i++)
      |                         ~^~~~~~~~~~~~
Main.cpp:70:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |     for(int i=0;i<opt.size();i++)
      |                 ~^~~~~~~~~~~
Main.cpp:73:24: warning: comparisons like 'X<=Y<=Z' do not have their mathematical meaning [-Wparentheses]
   73 |         if(opt[i].first<=mon<<opt[i].second>0)

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