Submission #586942

#	Time	Username	Problem	Language	Result	Execution time	Memory
586942		8e7	Super Dango Maker (JOI22_dango3)	C++17	100 / 100	430 ms	552 KiB

dango3

//Challenge: Accepted
#include "dango3.h"
#include <bits/stdc++.h>
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 100005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
namespace {
	int query(vector<int> &x) {
		pary(x.begin(), x.end());
		return Query(x);	
	}

}  // namespace

void Solve(int N, int M) {
	srand(time(NULL));
	vector<bool> vis(N*M, 0);
	for (int i = 0; i < M; i++) {
		vector<int> v; 
		for (int j = 0;j < N*M;j++) {
			if (!vis[j]) {
				v.push_back(j+1);
			}
		}
		random_shuffle(v.begin(), v.end());
		//debug("poss");
		//pary(v.begin(), v.end());
		vector<int> a;
		if (i == M - 1) {
			a = v;
		} else {
			int low = 0, up = v.size();
			while (low < up - 1) {
				int mid = (low + up) / 2;
				vector<int> q(v.begin(), v.begin() + mid);
				if (query(q) >= 1) {
					up = mid;
				} else {
					low = mid;
				}
			}
			a.push_back(v[low]);
			for (int j = low-1;j >= 0;j--) {
				vector<int> q(v.begin(), v.begin() + j);
				q.insert(q.end(), a.begin(), a.end());	
				if (query(q) == 0) {
					a.push_back(v[j]);
				}
			}
		}
		debug("Answer");
		pary(a.begin(), a.end());
		Answer(a);
		for (int j:a) vis[j-1] = 1;
	}
}

Compilation message (stderr)

dango3.cpp: In function 'int {anonymous}::query(std::vector<int>&)':
dango3.cpp:14:19: warning: statement has no effect [-Wunused-value]
   14 | #define pary(...) 0
      |                   ^
dango3.cpp:24:3: note: in expansion of macro 'pary'
   24 |   pary(x.begin(), x.end());
      |   ^~~~
dango3.cpp: In function 'void Solve(int, int)':
dango3.cpp:13:20: warning: statement has no effect [-Wunused-value]
   13 | #define debug(...) 0
      |                    ^
dango3.cpp:66:3: note: in expansion of macro 'debug'
   66 |   debug("Answer");
      |   ^~~~~
dango3.cpp:14:19: warning: statement has no effect [-Wunused-value]
   14 | #define pary(...) 0
      |                   ^
dango3.cpp:67:3: note: in expansion of macro 'pary'
   67 |   pary(a.begin(), a.end());
      |   ^~~~

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