Submission #155680

#	Time	Username	Problem	Language	Result	Execution time	Memory
155680		nvmdava	JOIRIS (JOI16_joiris)	C++17	0 / 100	2 ms	380 KiB

joiris

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second

#define N 150000
#define MOD 1000000007
#define INF 0x3f3f3f3f

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int a[55];
int n, k;

vector<pair<int, int> > ans;

int now[55];
int md[55];

int cnt[55];

void reset(){
	bool ok = 0;
	for(int i = 1; i <= n; i++){
		if(now[i] >= k) ok = 1;
	}
	if(ok == 0) return;
	
	int mn = 0x3f3f3f3f;
 
	for(int i = 1; i <= n; i++){
		if(now[i] < k){
			ans.push_back({1, i});
			now[i] += k;
		}
		mn = min(mn, now[i]);
	}
	for(int i = 1; i <= n; i++)
		now[i] -= mn;
	reset();
}

void check(int c){
	for(int i = 1; i <= n; i++){
		now[i] = a[i];
		md[i] = now[i] % k;
	}

	memset(cnt, 0, sizeof cnt);
	ans.clear();

	cnt[n - k + 1] = c;

	
	for(int i = n - k + 1; i <= n; i++)
		md[i] = (md[i] + c) % k;

	for(int i = n - k; i > 0; i--){
		while(md[i + k - 1] != md[n]){
			for(int j = 0; j < k; j++)
				md[i + j] = (md[i + j] + 1) % k;
			cnt[i]++;
		}
	}

	for(int i = 1; i < n; i++){
		if(md[i] != md[n]) return;
	}

	bool ok = 1;
	
	reset();
	do {
		ok = 0;
		for(int i = 1; i <= n; i++){
			if(cnt[i])
				ok = 1;
		}
		std::vector<pair<int, int> > pos;
		if(ok == 0) break;
		for(int i = 1; i <= n; i++){
			if(cnt[i]){
				cnt[i]--;
				pos.push_back({2, i});
				i += k - 1;
			} else {
				now[i] += k - 1;
				pos.push_back({1, i});
			}
		}
		sort(pos.begin(), pos.end());
		for(auto& x : pos)
			ans.push_back(x);
		reset();
	} while(ok);

	cout<<ans.size()<<'\n';
	
	for(auto& x: ans){
		cout<<x.ff<<' '<<x.ss<<'\n';
	}
	exit(0);
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	
	cin>>n>>k;
	int s = 0;
	for(int i = 1; i <= n; i++){
		cin>>a[i];
		s += a[i];
	}
	for(int i = 0; i < k; i++){
		check(i);
	}

	cout<<-1;
}

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