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Submission #334712

# Submission time Handle Problem Language Result Execution time Memory
334712 2020-12-09T21:10:39 Z nikatamliani Gift (IZhO18_nicegift) C++14
30 / 100
 2000 ms 158072 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 2e5+10;
#define ll long long
int main() {
	int n, k;
	cin >> n >> k; 
	set<pair<int,int>> s;
	for(int i = 1; i <= n; ++i) {
		int x;
		cin >> x;
		s.insert({-x, i}); 
	}
	vector<vector<pair<int,int>>> answer;
	while(s.begin()->first < 0) {
		vector<pair<int,int>> v; 
		for(pair<int,int> p : s) {
			v.push_back(p);
			if(v.size() == k) break;
		}
		for(pair<int,int> p : v) {
			s.erase(p);
			p.first++;
			if(p.first > 0) {
				cout << "-1\n";
				return 0;
			}
			s.insert(p);
		}
		answer.push_back(v);
	}
	cout << answer.size() << '\n';
	for(auto v : answer) {
		cout << 1 << ' ';
		for(pair<int,int> p : v) { 
			cout << p.second << ' ';
		}
		cout << '\n';
	}
}

Compilation message

nicegift.cpp: In function 'int main()':
nicegift.cpp:19:16: warning: comparison of integer expressions of different signedness: 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |    if(v.size() == k) break;
      |       ~~~~~~~~~^~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n=4
2 Correct 1 ms 364 KB n=3
3 Correct 1 ms 364 KB n=3
4 Correct 1 ms 364 KB n=4
5 Correct 1 ms 364 KB n=4
6 Correct 1 ms 364 KB n=2

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n=4
2 Correct 1 ms 364 KB n=3
3 Correct 1 ms 364 KB n=3
4 Correct 1 ms 364 KB n=4
5 Correct 1 ms 364 KB n=4
6 Correct 1 ms 364 KB n=2
7 Correct 1 ms 364 KB n=5
8 Correct 3 ms 1004 KB n=8
9 Correct 10 ms 1192 KB n=14
10 Correct 6 ms 1004 KB n=11
11 Correct 66 ms 6304 KB n=50000
12 Correct 69 ms 6256 KB n=50000
13 Correct 37 ms 3488 KB n=10
14 Correct 37 ms 3104 KB n=685
15 Correct 39 ms 3360 KB n=623
16 Correct 24 ms 2084 KB n=973

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n=4
2 Correct 1 ms 364 KB n=3
3 Correct 1 ms 364 KB n=3
4 Correct 1 ms 364 KB n=4
5 Correct 1 ms 364 KB n=4
6 Correct 1 ms 364 KB n=2
7 Correct 1 ms 364 KB n=5
8 Correct 3 ms 1004 KB n=8
9 Correct 10 ms 1192 KB n=14
10 Correct 6 ms 1004 KB n=11
11 Correct 66 ms 6304 KB n=50000
12 Correct 69 ms 6256 KB n=50000
13 Correct 37 ms 3488 KB n=10
14 Correct 37 ms 3104 KB n=685
15 Correct 39 ms 3360 KB n=623
16 Correct 24 ms 2084 KB n=973
17 Correct 44 ms 2596 KB n=989
18 Correct 17 ms 1260 KB n=563
19 Correct 29 ms 1644 KB n=592
20 Correct 29 ms 1772 KB n=938
21 Correct 22 ms 1388 KB n=747
22 Correct 25 ms 1516 KB n=991

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2052 ms 158072 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB n=4
2 Correct 1 ms 364 KB n=3
3 Correct 1 ms 364 KB n=3
4 Correct 1 ms 364 KB n=4
5 Correct 1 ms 364 KB n=4
6 Correct 1 ms 364 KB n=2
7 Correct 1 ms 364 KB n=5
8 Correct 3 ms 1004 KB n=8
9 Correct 10 ms 1192 KB n=14
10 Correct 6 ms 1004 KB n=11
11 Correct 66 ms 6304 KB n=50000
12 Correct 69 ms 6256 KB n=50000
13 Correct 37 ms 3488 KB n=10
14 Correct 37 ms 3104 KB n=685
15 Correct 39 ms 3360 KB n=623
16 Correct 24 ms 2084 KB n=973
17 Correct 44 ms 2596 KB n=989
18 Correct 17 ms 1260 KB n=563
19 Correct 29 ms 1644 KB n=592
20 Correct 29 ms 1772 KB n=938
21 Correct 22 ms 1388 KB n=747
22 Correct 25 ms 1516 KB n=991
23 Execution timed out 2052 ms 158072 KB Time limit exceeded
24 Halted 0 ms 0 KB -