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Submission #89499

# Submission time Handle Problem Language Result Execution time Memory
89499 2018-12-15T06:54:30 Z Harvey_Rollens Gift (IZhO18_nicegift) C++14
0 / 100
 2000 ms 120140 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;
    cin>>n>>k;

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

    while(!a.empty())
    {

        vector<ll> q;

        /*for(ll i=1; i<=n; i++)
            cout<<a[i].fr<<" ";
        cout<<endl;*/

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

        for(ll j=1; j<=k; j++)
        {
            std::pair<ll, ll> x;
            x=*a.rbegin();
            a.erase(x);

            q.push_back(x.se);
            x.fr--;
            if(x.fr) a.insert(x);
        }

        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:63:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(ll i=0; i<v.size(); i++)
                 ~^~~~~~~~~
nicegift.cpp:66:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for(ll j=0; j<v[i].se.size(); j++)
                     ~^~~~~~~~~~~~~~~

Subtask #1
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 508 KB n=3
3 Runtime error 3 ms 576 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 508 KB n=3
3 Runtime error 3 ms 576 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 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 508 KB n=3
3 Runtime error 3 ms 576 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2062 ms 120140 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 508 KB n=3
3 Runtime error 3 ms 576 KB Execution killed with signal 11 (could be triggered by violating memory limits)
4 Halted 0 ms 0 KB -