Submission #987536

#	Time	Username	Problem	Language	Result	Execution time	Memory
987536		activedeltorre	Shopping Plans (CCO20_day2problem3)	C++14	0 / 25	8 ms	10096 KiB

Main

#include <fstream>
#include <vector>
#include <queue>
#include <algorithm>

using namespace std;
ifstream cin("a.in");
ofstream cout("a.out");
struct node
{
    long long  layer,sum,lst,tip;
};
struct  cmp
{
    bool operator()(node a,node  b)
    {
        if(a.sum==b.sum)
        {
            return a.layer<b.layer;
        }
        return a.sum>b.sum;
    }
};
priority_queue<node,vector<node>,cmp>pq;
vector<long long >arr;
vector<long long >adj[200005];
int  main()
{
    long long  n,m,k,i,a,b,x,y;
    long long sum=0;
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin>>n>>m>>k;
    for(i=1; i<=n; i++)
    {
        cin>>a>>b;
        adj[a].push_back(b);
    }
    long long imp=0,minim=1e9,poz=m;
    for(i=1; i<=m; i++)
    {
        cin>>x>>y;
        sort(adj[i].begin(),adj[i].end());
        if(adj[i].size()==0)
        {
            imp=1;
        }
        else
        {
            long long  vkuk=adj[i][0];
            sum+=adj[i][0];
            for(long long  j=0; j<adj[i].size(); j++)
            {
                adj[i][j]-=vkuk;
            }
            if(adj[i].size()>=2)
            {
                if(adj[i][1]<=minim)
                {
                    poz=i;
                }
                minim=min(minim,adj[i][1]);
            }
        }
    }
    swap(adj[m],adj[poz]);
    if(imp==1)
    {
        cout<<-1<<'\n';
    }
    else
    {
        cout<<sum<<'\n';
    }
    k--;
    node curr,curr2;
    pq.push({1,minim,0,0});
    while(pq.size() && k && imp==0)
    {
        curr=pq.top();
        pq.pop();
        if(curr.lst!=0)
        {
            k--;
            cout<<curr.sum+sum<<'\n';
        }
        else if(curr.lst==0 && curr.tip==1 && curr.layer!=m)
        {
            k--;
            cout<<curr.sum+sum<<'\n';
        }
        if(curr.layer!=m+1)
        {
            if(curr.lst==0)
            {
                curr.sum-=minim;
                curr.tip=0;
            }
            else
            {
                curr.tip=1;
            }
            if(curr.lst+1<adj[curr.layer].size())
            {
                curr2=curr;
                curr2.lst++;
                curr2.sum=curr2.sum-adj[curr.layer][curr.lst]+adj[curr.layer][curr.lst+1];
                pq.push(curr2);
            }
            if(curr.layer+1<=m)
            {
            curr2=curr;
            curr2.sum+=minim;
            curr2.lst=0;
            curr2.layer++;
            pq.push(curr2);
            }
        }
    }
    while(k)
    {
        k--;
        cout<<-1<<'\n';
    }
    return 0;
}
/*
5 2 7
1 5
1 3
2 3
1 6
2 1
1 1
1 1*/

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:52:34: 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]
   52 |             for(long long  j=0; j<adj[i].size(); j++)
      |                                 ~^~~~~~~~~~~~~~
Main.cpp:103:26: 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]
  103 |             if(curr.lst+1<adj[curr.layer].size())
      |                ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5