Submission #1045225

# Submission time Handle Problem Language Result Execution time Memory
1045225 2024-08-05T19:12:03 Z beaconmc The Big Prize (IOI17_prize) C++14
97.37 / 100
60 ms 1968 KB
#include "prize.h"

#include <bits/stdc++.h>
 
typedef int ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
#define FORNEG(i,x,y) for(ll i=x; i>y; i--)
 
using namespace std;


map<ll, vector<ll>> cache;

vector<ll> query(int n){

	if (cache.count(n)) return cache[n];
	else return cache[n] = ask(n);
}


int find_best(int n) {
	cache.clear();
	vector<ll> stuff(n);

	FOR(i,0,n) stuff[i] = i;
	ll maxi = -1;
	FOR(i,0,min(500, n)){
		vector<ll> sus = query(i);
		maxi = max(maxi, sus[0]+sus[1]);
	}
	

	vector<ll> found;

	ll ans = -1;


	while (ans == -1){


		ll lo = 0;
		ll hi = stuff.size()-1;
		bool skip = false;

		while (lo < hi){




			ll mid = (lo+hi)/2;
			FOR(i, max(lo, mid-100), min(hi, mid+100)){
				if (cache.count(stuff[i])){
					mid = i;
					break;
				}
			}


			vector<ll> sus = query(stuff[mid]);


			if (sus[0] + sus[1] < maxi){
					
				if (sus[0]+sus[1]==0) return stuff[mid];
				found.push_back(stuff[mid]);
				stuff.erase(stuff.begin()+mid);
				skip = true;
				break;
			}else{
				sort(found.begin(), found.end());
				ll idk = upper_bound(found.begin(), found.end(), stuff[mid]) - found.begin();

				if (idk < sus[0]){
					hi = mid;
				}else{
					lo = mid+1;
				}
			}
		}

		if (skip) continue;

		vector<ll> sus = query(stuff[lo]);
		if (sus[0]+sus[1] == maxi) break;
		if (sus[0]+sus[1]==0) return stuff[lo];
		found.push_back(stuff[lo]);
		stuff.erase(stuff.begin()+lo);

	}

	return 0;

}
# Verdict Execution time Memory Grader output
1 Correct 3 ms 1112 KB Output is correct
2 Correct 3 ms 1112 KB Output is correct
3 Correct 3 ms 1112 KB Output is correct
4 Correct 2 ms 1112 KB Output is correct
5 Correct 3 ms 1368 KB Output is correct
6 Correct 3 ms 1112 KB Output is correct
7 Correct 3 ms 1112 KB Output is correct
8 Correct 2 ms 1112 KB Output is correct
9 Correct 2 ms 1112 KB Output is correct
10 Correct 2 ms 1112 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 1112 KB Output is correct
2 Correct 3 ms 1112 KB Output is correct
3 Correct 3 ms 1368 KB Output is correct
4 Correct 3 ms 1112 KB Output is correct
5 Correct 3 ms 1112 KB Output is correct
6 Correct 3 ms 1112 KB Output is correct
7 Correct 3 ms 1268 KB Output is correct
8 Correct 3 ms 1112 KB Output is correct
9 Correct 2 ms 1112 KB Output is correct
10 Correct 4 ms 1112 KB Output is correct
11 Correct 3 ms 1112 KB Output is correct
12 Correct 4 ms 1656 KB Output is correct
13 Correct 5 ms 1300 KB Output is correct
14 Correct 3 ms 344 KB Output is correct
15 Correct 8 ms 1252 KB Output is correct
16 Correct 31 ms 1616 KB Output is correct
17 Correct 2 ms 1112 KB Output is correct
18 Correct 45 ms 1692 KB Output is correct
19 Correct 2 ms 1112 KB Output is correct
20 Correct 13 ms 1192 KB Output is correct
21 Correct 13 ms 1392 KB Output is correct
22 Correct 6 ms 1112 KB Output is correct
23 Correct 2 ms 1196 KB Output is correct
24 Correct 3 ms 1256 KB Output is correct
25 Correct 19 ms 1368 KB Output is correct
26 Correct 17 ms 1368 KB Output is correct
27 Correct 4 ms 1112 KB Output is correct
28 Correct 41 ms 1388 KB Output is correct
29 Correct 35 ms 1592 KB Output is correct
30 Correct 40 ms 1680 KB Output is correct
31 Correct 4 ms 1112 KB Output is correct
32 Correct 5 ms 1112 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 12 ms 1408 KB Output is correct
35 Correct 3 ms 1112 KB Output is correct
36 Correct 10 ms 1368 KB Output is correct
37 Correct 4 ms 1112 KB Output is correct
38 Correct 3 ms 1112 KB Output is correct
39 Correct 16 ms 1388 KB Output is correct
40 Correct 48 ms 1664 KB Output is correct
41 Correct 28 ms 1616 KB Output is correct
42 Correct 23 ms 1668 KB Output is correct
43 Correct 18 ms 1368 KB Output is correct
44 Correct 20 ms 1368 KB Output is correct
45 Correct 14 ms 1492 KB Output is correct
46 Correct 3 ms 1264 KB Output is correct
47 Correct 17 ms 1368 KB Output is correct
48 Correct 30 ms 1652 KB Output is correct
49 Correct 5 ms 1112 KB Output is correct
50 Correct 38 ms 1616 KB Output is correct
51 Correct 16 ms 1368 KB Output is correct
52 Correct 3 ms 1112 KB Output is correct
53 Correct 3 ms 1244 KB Output is correct
54 Correct 16 ms 1368 KB Output is correct
55 Correct 3 ms 1112 KB Output is correct
56 Correct 38 ms 1616 KB Output is correct
57 Correct 35 ms 1368 KB Output is correct
58 Correct 27 ms 1624 KB Output is correct
59 Correct 20 ms 1700 KB Output is correct
60 Correct 22 ms 1440 KB Output is correct
61 Correct 3 ms 1364 KB Output is correct
62 Correct 2 ms 1112 KB Output is correct
63 Correct 3 ms 1112 KB Output is correct
64 Correct 3 ms 1112 KB Output is correct
65 Correct 3 ms 1272 KB Output is correct
66 Correct 16 ms 1312 KB Output is correct
67 Correct 5 ms 1112 KB Output is correct
68 Correct 17 ms 1112 KB Output is correct
69 Correct 14 ms 1112 KB Output is correct
70 Correct 5 ms 1112 KB Output is correct
71 Partially correct 46 ms 1968 KB Partially correct - number of queries: 5263
72 Correct 6 ms 1112 KB Output is correct
73 Partially correct 43 ms 1612 KB Partially correct - number of queries: 5196
74 Partially correct 41 ms 1780 KB Partially correct - number of queries: 5225
75 Correct 3 ms 1112 KB Output is correct
76 Correct 38 ms 1644 KB Output is correct
77 Correct 60 ms 1872 KB Output is correct
78 Correct 5 ms 1112 KB Output is correct
79 Correct 19 ms 1624 KB Output is correct
80 Correct 40 ms 1824 KB Output is correct
81 Correct 50 ms 1616 KB Output is correct
82 Correct 39 ms 1616 KB Output is correct
83 Correct 3 ms 1112 KB Output is correct
84 Correct 43 ms 1616 KB Output is correct
85 Correct 51 ms 1512 KB Output is correct
86 Correct 18 ms 1228 KB Output is correct
87 Correct 4 ms 1112 KB Output is correct
88 Correct 16 ms 1112 KB Output is correct
89 Correct 18 ms 1256 KB Output is correct
90 Correct 3 ms 1112 KB Output is correct
91 Correct 13 ms 1112 KB Output is correct
92 Correct 15 ms 1112 KB Output is correct
93 Correct 18 ms 1112 KB Output is correct
94 Correct 18 ms 1112 KB Output is correct
95 Correct 18 ms 1112 KB Output is correct
96 Correct 18 ms 1292 KB Output is correct
97 Correct 20 ms 1112 KB Output is correct