Submission #937845

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
937845	2024-03-04T15:19:55 Z	Macker	The Big Prize (IOI17_prize)	C++14	20 / 100	54 ms	596 KB

prize

#include "prize.h"
#include <bits/stdc++.h>

typedef long long ll;
#define all(v) v.begin(), v.end()
#define FOR(i, n) for (int i = 0; i < n; i++)

using namespace std;

int find_best(int n) {
	int mn = 0;
	FOR(i, min(500, n)){
		auto res = ask(i);
		mn = max(mn, res[0] + res[1]);
	}
	vector<int> pos;
	int l = 0, r = 1;
	FOR(i, mn){
		while(1){
			auto ret = ask(r);
			if(ret[0] + ret[1] != mn) break;
			if(ret[0] > i) break;
			r += (r - l); 
			if(r >= n){
				r = n - 1;
				break;
			}
		}
		while(l < r){
			int mid = (l + r) / 2;
			auto ret = ask(mid);
			if(ret[0] + ret[1] != mn) r = mid;
			else if(ret[0] > i) r = mid - 1;
			else l = mid + 1;
		}
		pos.push_back(l);
		if(r != n - 1) r++;
	}
	for (auto i : pos) {
		auto ret = ask(i);
		if(ret[0] + ret[1] == 0) return i;
	}
	return 0;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	3 ms	344 KB	Output is correct
3	Correct	2 ms	344 KB	Output is correct
4	Correct	2 ms	344 KB	Output is correct
5	Correct	2 ms	344 KB	Output is correct
6	Correct	2 ms	344 KB	Output is correct
7	Correct	2 ms	428 KB	Output is correct
8	Correct	2 ms	344 KB	Output is correct
9	Correct	2 ms	344 KB	Output is correct
10	Correct	3 ms	344 KB	Output is correct

Subtask #2

0 / 80.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	2 ms	344 KB	Output is correct
3	Correct	2 ms	344 KB	Output is correct
4	Correct	2 ms	344 KB	Output is correct
5	Correct	2 ms	344 KB	Output is correct
6	Correct	2 ms	344 KB	Output is correct
7	Correct	3 ms	344 KB	Output is correct
8	Correct	2 ms	344 KB	Output is correct
9	Correct	2 ms	344 KB	Output is correct
10	Correct	2 ms	344 KB	Output is correct
11	Correct	5 ms	344 KB	Output is correct
12	Correct	5 ms	344 KB	Output is correct
13	Correct	7 ms	344 KB	Output is correct
14	Correct	9 ms	428 KB	Output is correct
15	Partially correct	44 ms	440 KB	Partially correct - number of queries: 8968
16	Partially correct	41 ms	436 KB	Partially correct - number of queries: 9672
17	Partially correct	36 ms	436 KB	Partially correct - number of queries: 9285
18	Partially correct	54 ms	436 KB	Partially correct - number of queries: 9764
19	Partially correct	33 ms	424 KB	Partially correct - number of queries: 8543
20	Partially correct	25 ms	436 KB	Partially correct - number of queries: 6551
21	Partially correct	42 ms	424 KB	Partially correct - number of queries: 9349
22	Partially correct	34 ms	412 KB	Partially correct - number of queries: 7643
23	Correct	3 ms	344 KB	Output is correct
24	Correct	7 ms	428 KB	Output is correct
25	Incorrect	27 ms	596 KB	answer is not correct
26	Halted	0 ms	0 KB	-