oj.uz

Submission #52023

# Submission time Handle Problem Language Result Execution time Memory
52023 2018-06-23T09:41:03 Z mrtsima22 Gift (IZhO18_nicegift) C++17
30 / 100
 2000 ms 167268 KB 
#include <bits/stdc++.h>
using namespace std;
#define lo long
const int lmax=1999999999;
const long long lmx=1999999999999999999;
int n,k;
long long a[1000003],sum,p;
set<pair<long long,int> >s;
vector<vector<int> > ans;
int main(){std::ios::sync_with_stdio(false);
cin>>n>>k;
for(int i=1;i<=n;i++)
{
	cin>>a[i];
	sum=sum+a[i];
}
if(sum%k!=0){
cout<<-1<<endl;return 0;}
 
for(int i=1;i<=n;i++)
{
	s.insert(make_pair(a[i],i));
}
p=1;
while(s.size())
{
	int t=0;
	vector<int>v;
	while(s.size()&&t<k)
	{
		set<pair<long long,int> >::iterator it=s.end();
		it--;
		int u=(*(it)).second;
		s.erase(it);
		v.push_back(u);
		a[u]-=p;
		t++;
	}
	if(t!=k){cout<<-1<<endl;return 0;
	}
	for(int i=0;i<v.size();i++)
	{
		if(a[v[i]]>0)
		{
			s.insert(make_pair(a[v[i]],v[i]));
		}
	}
	ans.push_back(v);
}
cout<<ans.size()<<endl;
for(int i=0;i<ans.size();i++)
{
	cout<<p<<" ";
	for(int j=0;j<ans[i].size();j++)
	{
		cout<<ans[i][j]<<" ";
	}
	cout<<endl;
}
}
/*
70. 
71.                   *         *
72.                  * *       * *
73.                 *   *     *   *
74.                *     *   *     *
75.               *       * *       *
76.               *        *        *
77.                *               *
78.                 *             *
79.                  *           *
80.                   *         *
81.                    *       *
82.                     *     *
83.                      *   *
84.                       * *
85.                        *
86. 
87. 
88. 
89.*/

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:41:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<v.size();i++)
              ~^~~~~~~~~
nicegift.cpp:51:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 for(int i=0;i<ans.size();i++)
             ~^~~~~~~~~~~
nicegift.cpp:54:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int j=0;j<ans[i].size();j++)
              ~^~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n=4
2 Correct 2 ms 360 KB n=3
3 Correct 2 ms 400 KB n=3
4 Correct 2 ms 420 KB n=4
5 Correct 2 ms 512 KB n=4
6 Correct 3 ms 536 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n=4
2 Correct 2 ms 360 KB n=3
3 Correct 2 ms 400 KB n=3
4 Correct 2 ms 420 KB n=4
5 Correct 2 ms 512 KB n=4
6 Correct 3 ms 536 KB n=2
7 Correct 2 ms 648 KB n=5
8 Correct 6 ms 1192 KB n=8
9 Correct 30 ms 1640 KB n=14
10 Correct 20 ms 1640 KB n=11
11 Correct 122 ms 6860 KB n=50000
12 Correct 123 ms 7112 KB n=50000
13 Correct 102 ms 7112 KB n=10
14 Correct 89 ms 7112 KB n=685
15 Correct 106 ms 7112 KB n=623
16 Correct 55 ms 7112 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB n=4
2 Correct 2 ms 360 KB n=3
3 Correct 2 ms 400 KB n=3
4 Correct 2 ms 420 KB n=4
5 Correct 2 ms 512 KB n=4
6 Correct 3 ms 536 KB n=2
7 Correct 2 ms 648 KB n=5
8 Correct 6 ms 1192 KB n=8
9 Correct 30 ms 1640 KB n=14
10 Correct 20 ms 1640 KB n=11
11 Correct 122 ms 6860 KB n=50000
12 Correct 123 ms 7112 KB n=50000
13 Correct 102 ms 7112 KB n=10
14 Correct 89 ms 7112 KB n=685
15 Correct 106 ms 7112 KB n=623
16 Correct 55 ms 7112 KB n=973
17 Correct 80 ms 7112 KB n=989
18 Correct 25 ms 7112 KB n=563
19 Correct 31 ms 7112 KB n=592
20 Correct 34 ms 7112 KB n=938
21 Correct 29 ms 7112 KB n=747
22 Correct 30 ms 7112 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2069 ms 167268 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 248 KB n=4
2 Correct 2 ms 360 KB n=3
3 Correct 2 ms 400 KB n=3
4 Correct 2 ms 420 KB n=4
5 Correct 2 ms 512 KB n=4
6 Correct 3 ms 536 KB n=2
7 Correct 2 ms 648 KB n=5
8 Correct 6 ms 1192 KB n=8
9 Correct 30 ms 1640 KB n=14
10 Correct 20 ms 1640 KB n=11
11 Correct 122 ms 6860 KB n=50000
12 Correct 123 ms 7112 KB n=50000
13 Correct 102 ms 7112 KB n=10
14 Correct 89 ms 7112 KB n=685
15 Correct 106 ms 7112 KB n=623
16 Correct 55 ms 7112 KB n=973
17 Correct 80 ms 7112 KB n=989
18 Correct 25 ms 7112 KB n=563
19 Correct 31 ms 7112 KB n=592
20 Correct 34 ms 7112 KB n=938
21 Correct 29 ms 7112 KB n=747
22 Correct 30 ms 7112 KB n=991
23 Execution timed out 2069 ms 167268 KB Time limit exceeded
24 Halted 0 ms 0 KB -