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Submission #172866

# Submission time Handle Problem Language Result Execution time Memory
172866 2020-01-02T17:15:01 Z muhammad_hokimiyon Gift (IZhO18_nicegift) C++14
30 / 100
 71 ms 10552 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("Ofast")

#define fi first
#define se second
#define ll long long

using namespace std;

const int N = 1e5 + 7;
const int M = 23;
const int mod = 998244353;

int n,k;
int a[N];
set < pair < int , int > > s;

void solve1()
{
    cin >> n >> k;
    for( int i = 1; i <= n; i++ ){
        cin >> a[i];
        s.insert({a[i] , i});
    }
    int ans = 0;
    while( !s.empty() ){
        if( (int)s.size() < k ){
            cout << -1;
            return;
        }
        int sz = 1;
        vector < pair < int , int > > v;
        while( sz <= k ){
            auto x = *--s.end();
            s.erase(--s.end());
            x.fi--;
            v.push_back(x);
            sz++;
        }
        ans++;
        for( auto x : v ){
            if( x.fi > 0 )s.insert(x);
        }
    }
    for( int i = 1; i <= n; i++ ){
        s.insert({a[i] , i});
    }
    cout << ans << "\n";
    while( !s.empty() ){
        int sz = 1;
        vector < pair < int , int > > v;
        cout << 1 << " ";
        while( sz <= k ){
            auto x = *--s.end();
            s.erase(--s.end());
            x.fi--;
            cout << x.se << " ";
            v.push_back(x);
            sz++;
        }
        cout << "\n";
        for( auto x : v ){
            if( x.fi > 0 )s.insert(x);
        }
    }
}

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

    int cghf = 1;//cin >> cghf;
    while( cghf-- ){
        solve1();
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 376 KB n=3
3 Correct 2 ms 376 KB n=3
4 Correct 2 ms 376 KB n=4
5 Correct 2 ms 376 KB n=4
6 Correct 2 ms 420 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 376 KB n=3
3 Correct 2 ms 376 KB n=3
4 Correct 2 ms 376 KB n=4
5 Correct 2 ms 376 KB n=4
6 Correct 2 ms 420 KB n=2
7 Correct 2 ms 376 KB n=5
8 Correct 4 ms 376 KB n=8
9 Correct 13 ms 504 KB n=14
10 Correct 8 ms 376 KB n=11
11 Correct 67 ms 3704 KB n=50000
12 Correct 71 ms 3708 KB n=50000
13 Correct 40 ms 760 KB n=10
14 Correct 44 ms 888 KB n=685
15 Correct 60 ms 1016 KB n=623
16 Correct 30 ms 760 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB n=4
2 Correct 2 ms 376 KB n=3
3 Correct 2 ms 376 KB n=3
4 Correct 2 ms 376 KB n=4
5 Correct 2 ms 376 KB n=4
6 Correct 2 ms 420 KB n=2
7 Correct 2 ms 376 KB n=5
8 Correct 4 ms 376 KB n=8
9 Correct 13 ms 504 KB n=14
10 Correct 8 ms 376 KB n=11
11 Correct 67 ms 3704 KB n=50000
12 Correct 71 ms 3708 KB n=50000
13 Correct 40 ms 760 KB n=10
14 Correct 44 ms 888 KB n=685
15 Correct 60 ms 1016 KB n=623
16 Correct 30 ms 760 KB n=973
17 Correct 53 ms 932 KB n=989
18 Correct 24 ms 632 KB n=563
19 Correct 40 ms 732 KB n=592
20 Correct 42 ms 852 KB n=938
21 Correct 33 ms 632 KB n=747
22 Correct 36 ms 760 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Runtime error 39 ms 10552 KB Execution killed with signal 11 (could be triggered by violating memory limits)
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 376 KB n=3
3 Correct 2 ms 376 KB n=3
4 Correct 2 ms 376 KB n=4
5 Correct 2 ms 376 KB n=4
6 Correct 2 ms 420 KB n=2
7 Correct 2 ms 376 KB n=5
8 Correct 4 ms 376 KB n=8
9 Correct 13 ms 504 KB n=14
10 Correct 8 ms 376 KB n=11
11 Correct 67 ms 3704 KB n=50000
12 Correct 71 ms 3708 KB n=50000
13 Correct 40 ms 760 KB n=10
14 Correct 44 ms 888 KB n=685
15 Correct 60 ms 1016 KB n=623
16 Correct 30 ms 760 KB n=973
17 Correct 53 ms 932 KB n=989
18 Correct 24 ms 632 KB n=563
19 Correct 40 ms 732 KB n=592
20 Correct 42 ms 852 KB n=938
21 Correct 33 ms 632 KB n=747
22 Correct 36 ms 760 KB n=991
23 Runtime error 39 ms 10552 KB Execution killed with signal 11 (could be triggered by violating memory limits)
24 Halted 0 ms 0 KB -