oj.uz

Submission #89512

# Submission time Handle Problem Language Result Execution time Memory
89512 2018-12-15T07:27:23 Z Harvey_Rollens Gift (IZhO18_nicegift) C++14
7 / 100
 2000 ms 121928 KB 
#include<bits/stdc++.h>
#define ll long long
#define ld long double
#define st string
#define fr first
#define se second

const ll mod=1e9+7;

using namespace std;

set<pair<ll, ll> > a;
vector<pair<ll, vector<ll> > > v;

int main()
{
    //freopen("1.txt", "r", stdin);
    //freopen("1.txt", "w", stdout);
    ios_base::sync_with_stdio(0);
    cin.tie(NULL);
    cout.tie(NULL);

    ll n, k, s=0;
    cin>>n>>k;

    for(ll i=1; i<=n; i++)
    {
        ll x;
        cin>>x;
        a.insert({x, i});
        s+=x;
    }

    if(s%k!=0)
    {
        cout<<-1;
        return 0;
    }

    while(!a.empty())
    {

        if(v.size()*k>3000000)
        {
            cout<<-1;
            return 0;
        }

        std::vector<ll> q;
        std::vector<pair<ll, ll> > y;

        for(ll i=1; i<=k; i++)
        {
            //cout<<i<<" "<<a.size()<<endl;
            std::pair<ll, ll> x;

            x=*a.rbegin();
            a.erase(*a.rbegin());

            q.push_back(x.se);
            x.fr--;

            if(x.fr)
                y.push_back(x);
        }

        for(ll i=0; i<y.size(); i++)
        {
            a.insert(y[i]);
            //cout<<"y="<<y[i].fr<<" "<<y[i].se<<endl;
        }

        v.push_back({1, q});
    }

    cout<<v.size()<<endl;
    for(ll i=0; i<v.size(); i++)
    {
        cout<<v[i].fr<<" ";
        for(ll j=0; j<v[i].se.size(); j++)
        {
            cout<<v[i].se[j]<<" ";
        }
        cout<<endl;
    }
    return 0;
}
/*
*/

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:67:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(ll i=0; i<y.size(); i++)
                     ~^~~~~~~~~
nicegift.cpp:77:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i=0; i<v.size(); i++)
                 ~^~~~~~~~~
nicegift.cpp:80:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(ll j=0; j<v[i].se.size(); j++)
                     ~^~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 380 KB n=3
3 Correct 2 ms 456 KB n=3
4 Correct 0 ms 600 KB n=4
5 Correct 2 ms 600 KB n=4
6 Correct 2 ms 612 KB n=2

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 380 KB n=3
3 Correct 2 ms 456 KB n=3
4 Correct 0 ms 600 KB n=4
5 Correct 2 ms 600 KB n=4
6 Correct 2 ms 612 KB n=2
7 Correct 2 ms 612 KB n=5
8 Runtime error 8 ms 2076 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Halted 0 ms 0 KB -

Subtask #3
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 380 KB n=3
3 Correct 2 ms 456 KB n=3
4 Correct 0 ms 600 KB n=4
5 Correct 2 ms 600 KB n=4
6 Correct 2 ms 612 KB n=2
7 Correct 2 ms 612 KB n=5
8 Runtime error 8 ms 2076 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2060 ms 121928 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 380 KB n=3
3 Correct 2 ms 456 KB n=3
4 Correct 0 ms 600 KB n=4
5 Correct 2 ms 600 KB n=4
6 Correct 2 ms 612 KB n=2
7 Correct 2 ms 612 KB n=5
8 Runtime error 8 ms 2076 KB Execution killed with signal 11 (could be triggered by violating memory limits)
9 Halted 0 ms 0 KB -