oj.uz

Submission #378704

# Submission time Handle Problem Language Result Execution time Memory
378704 2021-03-17T03:24:12 Z cheissmart Gift (IZhO18_nicegift) C++14
18 / 100
 638 ms 524292 KB 
#include <bits/stdc++.h>
#define IO_OP std::ios::sync_with_stdio(0); std::cin.tie(0);
#define F first
#define S second
#define V vector
#define PB push_back
#define MP make_pair
#define EB emplace_back
#define ALL(v) (v).begin(), (v).end()
#define debug(x) cerr << "Line(" << __LINE__ << ") -> " << #x << " is " << x << endl

using namespace std;

typedef long long ll;
typedef pair<int, int> pi;
typedef V<int> vi;

const int INF = 1e9 + 7;

signed main()
{
	IO_OP;

	int n, k;
	cin >> n >> k;
	if(k == 2) {
		int mx = 0;
		vi aux;
		for(int i = 0; i < n; i++) {
			int a;
			cin >> a;
			for(int j = 0; j < a; j++)
				aux.PB(i);
			mx = max(mx, a);
		}
		if(aux.size() % 2 == 1 || mx * 2 > int(aux.size())) {
			cout << -1 << '\n';
			return 0;
		}
		int m = aux.size();
		cout << m / 2 << '\n';
		for(int i = 0; i < m / 2; i++) {
			cout << 1 << ' ' << aux[i] + 1 << ' ' << aux[i + m / 2] + 1 << '\n';
		}
	}
	
}

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 1 ms 1008 KB n=8
9 Correct 5 ms 620 KB n=14
10 Correct 3 ms 620 KB n=11
11 Correct 19 ms 1520 KB n=50000
12 Correct 18 ms 1536 KB n=50000
13 Correct 17 ms 1260 KB n=10
14 Correct 18 ms 1260 KB n=685
15 Correct 17 ms 1260 KB n=623
16 Correct 10 ms 880 KB n=973

Subtask #3
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 1 ms 1008 KB n=8
9 Correct 5 ms 620 KB n=14
10 Correct 3 ms 620 KB n=11
11 Correct 19 ms 1520 KB n=50000
12 Correct 18 ms 1536 KB n=50000
13 Correct 17 ms 1260 KB n=10
14 Correct 18 ms 1260 KB n=685
15 Correct 17 ms 1260 KB n=623
16 Correct 10 ms 880 KB n=973
17 Incorrect 1 ms 364 KB Unexpected end of file - int32 expected
18 Halted 0 ms 0 KB -

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Runtime error 638 ms 524292 KB Execution killed with signal 9
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 1 ms 1008 KB n=8
9 Correct 5 ms 620 KB n=14
10 Correct 3 ms 620 KB n=11
11 Correct 19 ms 1520 KB n=50000
12 Correct 18 ms 1536 KB n=50000
13 Correct 17 ms 1260 KB n=10
14 Correct 18 ms 1260 KB n=685
15 Correct 17 ms 1260 KB n=623
16 Correct 10 ms 880 KB n=973
17 Incorrect 1 ms 364 KB Unexpected end of file - int32 expected
18 Halted 0 ms 0 KB -