Submission #1045226

# Submission time Handle Problem Language Result Execution time Memory
1045226 2024-08-05T19:12:34 Z beaconmc The Big Prize (IOI17_prize) C++14
96.27 / 100
97 ms 2024 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-1000), min(hi, mid+1000)){
				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 2 ms 1112 KB Output is correct
2 Correct 3 ms 1256 KB Output is correct
3 Correct 3 ms 1196 KB Output is correct
4 Correct 3 ms 1108 KB Output is correct
5 Correct 2 ms 1112 KB Output is correct
6 Correct 3 ms 1112 KB Output is correct
7 Correct 3 ms 1112 KB Output is correct
8 Correct 4 ms 1112 KB Output is correct
9 Correct 3 ms 1112 KB Output is correct
10 Correct 2 ms 1112 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 5 ms 1488 KB Output is correct
2 Correct 3 ms 1112 KB Output is correct
3 Correct 3 ms 1112 KB Output is correct
4 Correct 3 ms 1364 KB Output is correct
5 Correct 3 ms 1196 KB Output is correct
6 Correct 3 ms 1112 KB Output is correct
7 Correct 3 ms 1276 KB Output is correct
8 Correct 3 ms 1112 KB Output is correct
9 Correct 3 ms 1240 KB Output is correct
10 Correct 4 ms 1112 KB Output is correct
11 Correct 8 ms 1380 KB Output is correct
12 Correct 3 ms 1112 KB Output is correct
13 Correct 8 ms 1112 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 10 ms 1240 KB Output is correct
16 Correct 56 ms 1616 KB Output is correct
17 Correct 4 ms 1112 KB Output is correct
18 Correct 78 ms 1748 KB Output is correct
19 Correct 5 ms 1112 KB Output is correct
20 Correct 14 ms 924 KB Output is correct
21 Correct 28 ms 1368 KB Output is correct
22 Correct 7 ms 1112 KB Output is correct
23 Correct 4 ms 1112 KB Output is correct
24 Correct 3 ms 1112 KB Output is correct
25 Correct 33 ms 1428 KB Output is correct
26 Correct 31 ms 1616 KB Output is correct
27 Correct 3 ms 1112 KB Output is correct
28 Correct 60 ms 1624 KB Output is correct
29 Correct 44 ms 1360 KB Output is correct
30 Correct 77 ms 1816 KB Output is correct
31 Correct 3 ms 1112 KB Output is correct
32 Correct 11 ms 1192 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 21 ms 1600 KB Output is correct
35 Correct 6 ms 1108 KB Output is correct
36 Correct 18 ms 1624 KB Output is correct
37 Correct 4 ms 1112 KB Output is correct
38 Correct 3 ms 1112 KB Output is correct
39 Correct 32 ms 1368 KB Output is correct
40 Correct 60 ms 1872 KB Output is correct
41 Correct 36 ms 1444 KB Output is correct
42 Correct 37 ms 1740 KB Output is correct
43 Correct 32 ms 1368 KB Output is correct
44 Correct 24 ms 1368 KB Output is correct
45 Correct 21 ms 1320 KB Output is correct
46 Correct 2 ms 1112 KB Output is correct
47 Correct 29 ms 1600 KB Output is correct
48 Correct 45 ms 1368 KB Output is correct
49 Correct 8 ms 1368 KB Output is correct
50 Correct 65 ms 1752 KB Output is correct
51 Correct 23 ms 1368 KB Output is correct
52 Correct 3 ms 1112 KB Output is correct
53 Correct 7 ms 1264 KB Output is correct
54 Correct 25 ms 1400 KB Output is correct
55 Correct 2 ms 1112 KB Output is correct
56 Correct 69 ms 1568 KB Output is correct
57 Correct 49 ms 1648 KB Output is correct
58 Correct 59 ms 1876 KB Output is correct
59 Correct 35 ms 1372 KB Output is correct
60 Correct 48 ms 1368 KB Output is correct
61 Correct 6 ms 1112 KB Output is correct
62 Correct 2 ms 1112 KB Output is correct
63 Correct 5 ms 1368 KB Output is correct
64 Correct 4 ms 1112 KB Output is correct
65 Correct 5 ms 1272 KB Output is correct
66 Correct 43 ms 1112 KB Output is correct
67 Correct 28 ms 1296 KB Output is correct
68 Correct 36 ms 1112 KB Output is correct
69 Correct 39 ms 1112 KB Output is correct
70 Correct 28 ms 1112 KB Output is correct
71 Partially correct 73 ms 1616 KB Partially correct - number of queries: 5373
72 Correct 9 ms 1112 KB Output is correct
73 Partially correct 91 ms 1872 KB Partially correct - number of queries: 5309
74 Partially correct 97 ms 2024 KB Partially correct - number of queries: 5336
75 Correct 4 ms 1264 KB Output is correct
76 Correct 89 ms 1600 KB Output is correct
77 Correct 68 ms 1620 KB Output is correct
78 Correct 9 ms 1112 KB Output is correct
79 Correct 32 ms 1440 KB Output is correct
80 Correct 63 ms 1892 KB Output is correct
81 Correct 67 ms 1616 KB Output is correct
82 Correct 85 ms 1616 KB Output is correct
83 Correct 4 ms 1112 KB Output is correct
84 Correct 56 ms 1564 KB Output is correct
85 Correct 67 ms 1552 KB Output is correct
86 Correct 38 ms 1112 KB Output is correct
87 Correct 6 ms 1112 KB Output is correct
88 Correct 36 ms 1112 KB Output is correct
89 Correct 38 ms 1112 KB Output is correct
90 Correct 3 ms 1112 KB Output is correct
91 Correct 24 ms 1112 KB Output is correct
92 Correct 40 ms 1368 KB Output is correct
93 Correct 41 ms 1288 KB Output is correct
94 Correct 41 ms 1112 KB Output is correct
95 Correct 45 ms 1112 KB Output is correct
96 Correct 45 ms 1112 KB Output is correct
97 Correct 36 ms 1112 KB Output is correct