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Submission #47816

# Submission time Handle Problem Language Result Execution time Memory
47816 2018-05-07T17:21:58 Z dqhungdl Gift (IZhO18_nicegift) C++17
49 / 100
 2000 ms 192340 KB 
#include <bits/stdc++.h>
using namespace std;

typedef pair<int64_t,int64_t> ii;
int64_t n,k,top=0,a[1000005],rs[3000005];
vector<int64_t> g[3000005];
set<ii> s;

int main()
{
	ios_base::sync_with_stdio(false);
	//freopen("TEST.INP","r",stdin);
	//freopen("TEST.OUT","w",stdout);
	cin>>n>>k;
	int64_t sum=0,maxn=0;
	for(int64_t i=1;i<=n;i++)
	{
		cin>>a[i];
		sum+=a[i];
		maxn=max(maxn,a[i]);
		s.insert(ii(a[i],i));
	}
	if(sum%k!=0||maxn>sum/k)
	{
		cout<<-1;
		return 0;
	}
	int64_t ave=sum/k;
	while(s.size()>0)
	{
		vector<int64_t> TMP;
		for(int64_t i=1;i<=k;i++)
		{
			int64_t u=(*s.rbegin()).second;
			s.erase(s.find(*s.rbegin()));
			TMP.push_back(u);
		}
		int64_t tmp=0;
		if(s.size()>0)
			tmp=(*s.rbegin()).first;
		int64_t lim=min(a[TMP.back()],ave-tmp);
		ave-=lim;		
		rs[++top]=lim;
		g[top]=TMP;
		for(int64_t i=0;i<TMP.size();i++)
		{
			a[TMP[i]]-=lim;
			if(a[TMP[i]]>0)
				s.insert(ii(a[TMP[i]],TMP[i]));
		}
	}
	cout<<top<<"\n";
	for(int64_t i=1;i<=top;i++)
	{
		cout<<rs[i]<<' ';
		for(int64_t j=0;j<g[i].size();j++)
			cout<<g[i][j]<<' ';
		cout<<"\n";
	}
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:45:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int64_t i=0;i<TMP.size();i++)
                   ~^~~~~~~~~~~
nicegift.cpp:56:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int64_t j=0;j<g[i].size();j++)
                   ~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 70776 KB n=4
2 Correct 59 ms 70872 KB n=3
3 Correct 69 ms 71004 KB n=3
4 Correct 62 ms 71052 KB n=4
5 Correct 57 ms 71052 KB n=4
6 Correct 63 ms 71200 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 70776 KB n=4
2 Correct 59 ms 70872 KB n=3
3 Correct 69 ms 71004 KB n=3
4 Correct 62 ms 71052 KB n=4
5 Correct 57 ms 71052 KB n=4
6 Correct 63 ms 71200 KB n=2
7 Correct 60 ms 71200 KB n=5
8 Correct 56 ms 71200 KB n=8
9 Correct 60 ms 71200 KB n=14
10 Correct 57 ms 71200 KB n=11
11 Correct 96 ms 75504 KB n=50000
12 Correct 89 ms 75504 KB n=50000
13 Correct 57 ms 75504 KB n=10
14 Correct 60 ms 75504 KB n=685
15 Correct 56 ms 75504 KB n=623
16 Correct 58 ms 75504 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 70776 KB n=4
2 Correct 59 ms 70872 KB n=3
3 Correct 69 ms 71004 KB n=3
4 Correct 62 ms 71052 KB n=4
5 Correct 57 ms 71052 KB n=4
6 Correct 63 ms 71200 KB n=2
7 Correct 60 ms 71200 KB n=5
8 Correct 56 ms 71200 KB n=8
9 Correct 60 ms 71200 KB n=14
10 Correct 57 ms 71200 KB n=11
11 Correct 96 ms 75504 KB n=50000
12 Correct 89 ms 75504 KB n=50000
13 Correct 57 ms 75504 KB n=10
14 Correct 60 ms 75504 KB n=685
15 Correct 56 ms 75504 KB n=623
16 Correct 58 ms 75504 KB n=973
17 Correct 63 ms 75504 KB n=989
18 Correct 62 ms 75504 KB n=563
19 Correct 59 ms 75504 KB n=592
20 Correct 56 ms 75504 KB n=938
21 Correct 56 ms 75504 KB n=747
22 Correct 58 ms 75504 KB n=991

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 1196 ms 160016 KB n=1000000
2 Correct 767 ms 160016 KB n=666666
3 Correct 444 ms 160016 KB n=400000
4 Correct 318 ms 160016 KB n=285714
5 Correct 72 ms 160016 KB n=20000
6 Correct 209 ms 160016 KB n=181818
7 Correct 64 ms 160016 KB n=10000
8 Correct 63 ms 160016 KB n=6666
9 Correct 60 ms 160016 KB n=4000
10 Correct 62 ms 160016 KB n=2857
11 Correct 59 ms 160016 KB n=2000

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 55 ms 70776 KB n=4
2 Correct 59 ms 70872 KB n=3
3 Correct 69 ms 71004 KB n=3
4 Correct 62 ms 71052 KB n=4
5 Correct 57 ms 71052 KB n=4
6 Correct 63 ms 71200 KB n=2
7 Correct 60 ms 71200 KB n=5
8 Correct 56 ms 71200 KB n=8
9 Correct 60 ms 71200 KB n=14
10 Correct 57 ms 71200 KB n=11
11 Correct 96 ms 75504 KB n=50000
12 Correct 89 ms 75504 KB n=50000
13 Correct 57 ms 75504 KB n=10
14 Correct 60 ms 75504 KB n=685
15 Correct 56 ms 75504 KB n=623
16 Correct 58 ms 75504 KB n=973
17 Correct 63 ms 75504 KB n=989
18 Correct 62 ms 75504 KB n=563
19 Correct 59 ms 75504 KB n=592
20 Correct 56 ms 75504 KB n=938
21 Correct 56 ms 75504 KB n=747
22 Correct 58 ms 75504 KB n=991
23 Correct 1196 ms 160016 KB n=1000000
24 Correct 767 ms 160016 KB n=666666
25 Correct 444 ms 160016 KB n=400000
26 Correct 318 ms 160016 KB n=285714
27 Correct 72 ms 160016 KB n=20000
28 Correct 209 ms 160016 KB n=181818
29 Correct 64 ms 160016 KB n=10000
30 Correct 63 ms 160016 KB n=6666
31 Correct 60 ms 160016 KB n=4000
32 Correct 62 ms 160016 KB n=2857
33 Correct 59 ms 160016 KB n=2000
34 Correct 82 ms 160016 KB n=23514
35 Correct 85 ms 160016 KB n=23514
36 Correct 57 ms 160016 KB n=940
37 Correct 58 ms 160016 KB n=2
38 Correct 137 ms 160016 KB n=100000
39 Correct 143 ms 160016 KB n=100000
40 Correct 59 ms 160016 KB n=10
41 Correct 59 ms 160016 KB n=100
42 Correct 62 ms 160016 KB n=1000
43 Correct 1619 ms 192340 KB n=1000000
44 Execution timed out 2092 ms 192340 KB Time limit exceeded
45 Halted 0 ms 0 KB -