Submission #1216301

#	Time	Username	Problem	Language	Result	Execution time	Memory
1216301		PenguinsAreCute	Super Dango Maker (JOI22_dango3)	C++17	22 / 100	518 ms	616 KiB

dango3

#include "dango3.h"
#include <bits/stdc++.h>
using namespace std;
void Solve(int N, int M) {
	vector<bool> used(N*M,0);
	for(int i=0;i<M;i++) {
		vector<int> cur(N, -1);
		auto check = [&used,&cur](int m) -> bool {
			vector<int> qry;
			int ptr = 0;
			while(qry.size() < m) {
				if(!used[ptr])
					qry.push_back(ptr+1);
				ptr++;
			}
			for(auto k: cur)
				if(~k)
					qry.push_back(k);
			return Query(qry);
		};
		int prevL = (M - i) * N;
		for(int j=0;j<N;j++) {
			int l = 0, h = prevL;
			while(h > 4 && check(h - 4))
				h -= 4;
			l=max(0,h-4);
			while(h - l > 1) {
				int m = (l + h) / 2;
				if(check(m))
					h = m;
				else
					l = m;
			}
			int ptr = -1, cnt = 0;
			while(cnt <= l) {
				if(!used[++ptr])
					cnt++;
			}
			used[ptr] = 1;
			cur[j] = ptr+1;
			prevL = l;
		}
		Answer(cur);
	}
}

• Subtask 1: 2 / 2
• Subtask 2: 5 / 5
• Subtask 3: 15 / 15
• Subtask 4: 0 / 78