oj.uz

Submission #237251

# Submission time Handle Problem Language Result Execution time Memory
237251 2020-06-05T13:03:30 Z kshitij_sodani Gift (IZhO18_nicegift) C++17
30 / 100
 140 ms 4584 KB 
#include <bits/stdc++.h>
using namespace std;
typedef int64_t llo;
#define mp make_pair
#define pb push_back
#define a first
#define b second
int it[1000001];
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n,k;
	cin>>n>>k;
	priority_queue<pair<int,int>> x;
	for(int i=0;i<n;i++){
		cin>>it[i];
		if(it[i]>0){
			x.push({it[i],i});
		}
	}
	int st=0;
	vector<vector<int>> ans;
	while(x.size()){
		if(x.size()<k){
			st=1;
			break;
		}
		ans.pb({});
		vector<pair<int,int>> kk;
		for(int i=0;i<k;i++){
			pair<int,int> no=x.top();
			x.pop();
			ans.back().pb(no.b);
			kk.pb(no);
		}
		for(auto j:kk){
			if(j.a>1){
				x.push({j.a-1,j.b});
			}
		}
	}
	if(st){
		cout<<-1<<endl;
	}
	else{
		cout<<ans.size()<<endl;
		for(auto j:ans){
			cout<<1<<" ";
			for(auto i:j){
				cout<<i+1<<" ";
			}
			cout<<endl;
		}
	}




 
 
 
	return 0;
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:24:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(x.size()<k){
      ~~~~~~~~^~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB n=4
2 Correct 5 ms 384 KB n=3
3 Correct 5 ms 384 KB n=3
4 Correct 5 ms 384 KB n=4
5 Correct 5 ms 396 KB n=4
6 Correct 5 ms 384 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB n=4
2 Correct 5 ms 384 KB n=3
3 Correct 5 ms 384 KB n=3
4 Correct 5 ms 384 KB n=4
5 Correct 5 ms 396 KB n=4
6 Correct 5 ms 384 KB n=2
7 Correct 5 ms 384 KB n=5
8 Correct 7 ms 1024 KB n=8
9 Correct 38 ms 1212 KB n=14
10 Correct 33 ms 1152 KB n=11
11 Correct 140 ms 4584 KB n=50000
12 Correct 133 ms 4460 KB n=50000
13 Correct 122 ms 3496 KB n=10
14 Correct 114 ms 3160 KB n=685
15 Correct 120 ms 3332 KB n=623
16 Correct 67 ms 2096 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB n=4
2 Correct 5 ms 384 KB n=3
3 Correct 5 ms 384 KB n=3
4 Correct 5 ms 384 KB n=4
5 Correct 5 ms 396 KB n=4
6 Correct 5 ms 384 KB n=2
7 Correct 5 ms 384 KB n=5
8 Correct 7 ms 1024 KB n=8
9 Correct 38 ms 1212 KB n=14
10 Correct 33 ms 1152 KB n=11
11 Correct 140 ms 4584 KB n=50000
12 Correct 133 ms 4460 KB n=50000
13 Correct 122 ms 3496 KB n=10
14 Correct 114 ms 3160 KB n=685
15 Correct 120 ms 3332 KB n=623
16 Correct 67 ms 2096 KB n=973
17 Correct 97 ms 2608 KB n=989
18 Correct 29 ms 1024 KB n=563
19 Correct 32 ms 1528 KB n=592
20 Correct 36 ms 1400 KB n=938
21 Correct 34 ms 1404 KB n=747
22 Correct 34 ms 1280 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 13 ms 384 KB Jury has the answer but participant has not
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB n=4
2 Correct 5 ms 384 KB n=3
3 Correct 5 ms 384 KB n=3
4 Correct 5 ms 384 KB n=4
5 Correct 5 ms 396 KB n=4
6 Correct 5 ms 384 KB n=2
7 Correct 5 ms 384 KB n=5
8 Correct 7 ms 1024 KB n=8
9 Correct 38 ms 1212 KB n=14
10 Correct 33 ms 1152 KB n=11
11 Correct 140 ms 4584 KB n=50000
12 Correct 133 ms 4460 KB n=50000
13 Correct 122 ms 3496 KB n=10
14 Correct 114 ms 3160 KB n=685
15 Correct 120 ms 3332 KB n=623
16 Correct 67 ms 2096 KB n=973
17 Correct 97 ms 2608 KB n=989
18 Correct 29 ms 1024 KB n=563
19 Correct 32 ms 1528 KB n=592
20 Correct 36 ms 1400 KB n=938
21 Correct 34 ms 1404 KB n=747
22 Correct 34 ms 1280 KB n=991
23 Incorrect 13 ms 384 KB Jury has the answer but participant has not
24 Halted 0 ms 0 KB -