Submission #1133150

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133150		Agageldi	Gift (IZhO18_nicegift)	C++17	0 / 100	134 ms	24408 KiB

nicegift

/*
TASK: siuu
*/
#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define N 4000005
#define ff first
#define ss second
#define pb push_back
#define sz(s) (int)s.size()
#define rep(c, a, b) for(c = a; c <= b; c++)

ll n, t, m, l, jog;
deque <ll> v, ans;
pair <ll,ll> a[N];
vector <deque<ll>> answer;

int main () {
	ios::sync_with_stdio(0);cin.tie(0);
	cin >> n >> m;
	for(int i = 1;i <= n; i++) {
		cin >> a[i].ff;
		a[i].ss = i;
	}
	if(n % m) {
		cout << "-1\n";
		return 0;
	}
	cout << (n / m) << '\n';
	for(int i = 1; i <= n; i++){
		if(i % m == 1) cout << m << " ";
		cout << i << " ";
		if(i % m == 0) {
			cout << '\n';
		}
	}
}

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