Submission #1133207

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133207		Halym2007	Gift (IZhO18_nicegift)	C++17	0 / 100	22 ms	1860 KiB

nicegift

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define sz size()
#define ff first
#define ss second
#define pb push_back
#define pii pair <int, int>
#define dur exit(0)
#define dur1 return(0)
const int N = 2e5 + 5;
ll n, k, a[N];
int main () {
//	freopen ("input.txt", "r", stdin);
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin >> n >> k;
	int gg = 0;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i];
		if (a[i] < 1) gg = 1;
	}
	if (n % k == 0 and !gg) {
		cout << n / k << "\n";
		for (int i = 1; i <= n; ++i) {
			if (i % k == 1) {
				cout << "\n";
				cout << a[1] << " ";
			}
			cout << i << " ";
		}
	}
	else {
		cout << "-1\n";
	}
}

• Subtask 1: 0 / 7
• Subtask 2: 0 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 51