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Submission #956996

# Submission time Handle Problem Language Result Execution time Memory
956996 2024-04-02T19:15:40 Z pragmatist Xoractive (IZhO19_xoractive) C++17
6 / 100
 3 ms 540 KB 
#include "interactive.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> guess(int n) {
	vector<int> ans(n+1, -1);
	map<int, int> cnt[10];
	for(int i = 0; (1<<i) <= n; ++i) {
		vector<int> ind;
		for(int j = 1; j <= n; ++j) {
			if(j >> i & 1) {
				ind.push_back(j);
			}
		}
		assert(!ind.empty());
		ans[ind[0]] = ask(ind[0]);
		int st = ans[ind[0]];
		if((int)ind.size()== 1) {
			continue;
		}
		map<int, int> cur;
		vector<int> c1 = get_pairwise_xor(ind);
		for(auto x : c1) {
			cur[x]++;
		}
		ind.erase(ind.begin());
		vector<int> c2 = get_pairwise_xor(ind);
		for(auto x : c2) {
			cur[x]--;
		}
		vector<int> v = {st};
		for(auto e : cur) {
			if(e.second == 0) {
				continue;
			}
			v.push_back(e.first^st);
		}
		for(auto x : v) {
			cnt[i][x]++;
		}
	}
	for(int i = 1; i <= n; ++i) {
		if(ans[i] != -1) {
			continue;
		}
		map<int, int> cur;
		int tot = 0;
		for(int j = 0; (1 << j) <= i; ++j) {
			if(i >> j & 1) {
				tot++;
				for(auto e : cnt[j]) {
					cur[e.first]++;
				}
			}
		}
		for(auto e : cur) {
			if(e.second == tot) {
				ans[i] = e.first;
			}
		}
	}
	ans.erase(ans.begin());
	return ans;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 344 KB Output is correct

Subtask #2
0 / 94.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 540 KB Output is not correct
2 Halted 0 ms 0 KB -