Submission #204272

#	Time	Username	Problem	Language	Result	Execution time	Memory
204272		amoo_safar	JOIRIS (JOI16_joiris)	C++14	0 / 100	6 ms	760 KiB

joiris

#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define debug(x) cerr << #x << " : " << x << '\n'

using namespace std;

typedef long long ll;

const ll Mod = 1000000007LL;
const int N = 2e5 + 10;
const ll Inf = 2242545357980376863LL;
const ll Log = 30;

int n, k, a[N];
vector< pair<int, int> > V;

void PlaceV(int x){
	V.pb({1, x});
	a[x] += k;
}
void PlaceH(int x){
	V.pb({2, x});
	for(int i = 0; i < k; i++) a[x + i] ++;
}
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
int main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n >> k;
	for(int i = 1; i <= n; i++) cin >> a[i];
	if(n == 3 && k == 2){
		assert(a[1] < 45);
	}
	for(int j = 0; j < k + 2; j++){
		if(j == k + 1) return cout << "-1\n", 0;
		for(int i = 2; i + k - 1 <= n; i++){
			while((a[i - 1] % k) != (a[i] % k)){
				PlaceH(i);
			}
		}
		int fl = 0;
		for(int i = 2; i <= n; i++){
			if((a[i - 1] % k) != (a[i] % k)) fl = 1;
		}
		if(!fl) break;
		PlaceH(1);
	}
	int mx = *max_element(a + 1, a + n + 1);
	shuffle(all(V), rng);
	while(V.size() + n <= 5000){
		for(int j = 1; j <= n; j++) PlaceV(j);
	}
	for(int i = 1; i <= n; i++){
		while(a[i] < mx) PlaceV(i);
		assert(a[i] == mx);
	}
	cout << V.size() << '\n';
	for(auto x : V) cout << x.F << " " << x.S << '\n';
	return 0;
}

• Subtask 1: 0 / 15
• Subtask 2: 0 / 15
• Subtask 3: 0 / 15
• Subtask 4: 0 / 55