oj.uz

Submission #931924

# Submission time Handle Problem Language Result Execution time Memory
931924 2024-02-22T14:42:55 Z Lobo The Big Prize (IOI17_prize) C++17
100 / 100
 33 ms 2004 KB 
#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
#define fr first
#define sc second
map<int,pair<int,pair<int,int>>> qr;
 
int cnt = 0;
int cntnonlol;
int n;
pair<int,pair<int,int>> query(int i) {
	if(i == n) return mp(cntnonlol,mp(cntnonlol,0));
	if(qr.count(i)) return qr[i];
	++cnt;
	vector<int> perg = ask(i);
	return qr[i] = mp(perg[0]+perg[1],mp(perg[0],perg[1]));
}
 
int find_best(int N) {
 	n = N;
 	if(n <= 5000) {
 		for(int i = 0; i < n; i++) {
 			if(query(i).fr == 0) return i;
 		}
 	}
 	int S = n/420;
 	priority_queue<pair<pair<int,int>,pair<int,int>>> q;

 	for(int i = 0; i*S < n; i++) {
 		// i*S,(i+1)*S
 		int l = i*S;
 		int r = min(n-1,(i+1)*S);

		q.push(mp(mp(0,query(r).sc.fr-query(l).sc.fr),mp(l,r)));
 	}

 	while(q.size()) {
 		int l = q.top().sc.fr;
 		int r = q.top().sc.sc;
 		q.pop();
 		if(l > r) continue;

 		if(query(l).fr == 0) return l;
 		if(query(r).fr == 0) return r;
 		if(r-l+1 <= 2) continue;

 		if(query(l) == query(r)) continue;
 		int mid = (l+r)/2;
 		if(l <= mid) q.push(mp(mp(0,query(mid).sc.fr-query(l).sc.fr),mp(l,mid)));
 		if(mid <= r) q.push(mp(mp(0,query(r).sc.fr-query(mid).sc.fr),mp(mid,r)));

 		// int ml = (2*l+r)/3;
 		// int mr = (l+2*r)/3;
 		// q.push(mp(l,ml));
 		// q.push(mp(ml,mr));
 		// q.push(mp(mr,r));
 	}

 	assert(false);
 	return -1;


}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 700 KB Output is correct
2 Correct 2 ms 456 KB Output is correct
3 Correct 2 ms 456 KB Output is correct
4 Correct 2 ms 716 KB Output is correct
5 Correct 2 ms 712 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 708 KB Output is correct
8 Correct 2 ms 712 KB Output is correct
9 Correct 2 ms 716 KB Output is correct
10 Correct 2 ms 468 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 696 KB Output is correct
2 Correct 2 ms 952 KB Output is correct
3 Correct 2 ms 464 KB Output is correct
4 Correct 2 ms 952 KB Output is correct
5 Correct 2 ms 716 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 468 KB Output is correct
8 Correct 2 ms 460 KB Output is correct
9 Correct 2 ms 712 KB Output is correct
10 Correct 2 ms 960 KB Output is correct
11 Correct 4 ms 960 KB Output is correct
12 Correct 4 ms 956 KB Output is correct
13 Correct 2 ms 948 KB Output is correct
14 Correct 6 ms 944 KB Output is correct
15 Correct 20 ms 1028 KB Output is correct
16 Correct 7 ms 1012 KB Output is correct
17 Correct 24 ms 1372 KB Output is correct
18 Correct 2 ms 712 KB Output is correct
19 Correct 22 ms 1688 KB Output is correct
20 Correct 11 ms 964 KB Output is correct
21 Correct 21 ms 716 KB Output is correct
22 Correct 17 ms 1316 KB Output is correct
23 Correct 2 ms 452 KB Output is correct
24 Correct 3 ms 480 KB Output is correct
25 Correct 11 ms 1240 KB Output is correct
26 Correct 13 ms 1328 KB Output is correct
27 Correct 2 ms 716 KB Output is correct
28 Correct 4 ms 976 KB Output is correct
29 Correct 5 ms 980 KB Output is correct
30 Correct 3 ms 708 KB Output is correct
31 Correct 21 ms 1024 KB Output is correct
32 Correct 3 ms 972 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 21 ms 1268 KB Output is correct
35 Correct 2 ms 716 KB Output is correct
36 Correct 20 ms 1632 KB Output is correct
37 Correct 3 ms 964 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 17 ms 1096 KB Output is correct
40 Correct 2 ms 716 KB Output is correct
41 Correct 13 ms 1540 KB Output is correct
42 Correct 12 ms 1544 KB Output is correct
43 Correct 11 ms 1564 KB Output is correct
44 Correct 15 ms 1048 KB Output is correct
45 Correct 18 ms 1376 KB Output is correct
46 Correct 24 ms 1448 KB Output is correct
47 Correct 15 ms 1260 KB Output is correct
48 Correct 8 ms 732 KB Output is correct
49 Correct 23 ms 1380 KB Output is correct
50 Correct 2 ms 712 KB Output is correct
51 Correct 16 ms 1104 KB Output is correct
52 Correct 24 ms 1444 KB Output is correct
53 Correct 2 ms 464 KB Output is correct
54 Correct 16 ms 812 KB Output is correct
55 Correct 27 ms 1728 KB Output is correct
56 Correct 2 ms 712 KB Output is correct
57 Correct 8 ms 1220 KB Output is correct
58 Correct 9 ms 1036 KB Output is correct
59 Correct 11 ms 1760 KB Output is correct
60 Correct 12 ms 1028 KB Output is correct
61 Correct 2 ms 460 KB Output is correct
62 Correct 2 ms 720 KB Output is correct
63 Correct 2 ms 712 KB Output is correct
64 Correct 2 ms 708 KB Output is correct
65 Correct 2 ms 888 KB Output is correct
66 Correct 2 ms 716 KB Output is correct
67 Correct 2 ms 896 KB Output is correct
68 Correct 2 ms 700 KB Output is correct
69 Correct 2 ms 956 KB Output is correct
70 Correct 2 ms 964 KB Output is correct
71 Correct 25 ms 1356 KB Output is correct
72 Correct 3 ms 488 KB Output is correct
73 Correct 25 ms 1004 KB Output is correct
74 Correct 20 ms 1652 KB Output is correct
75 Correct 2 ms 724 KB Output is correct
76 Correct 20 ms 1220 KB Output is correct
77 Correct 27 ms 1548 KB Output is correct
78 Correct 3 ms 948 KB Output is correct
79 Correct 13 ms 1252 KB Output is correct
80 Correct 24 ms 1752 KB Output is correct
81 Correct 23 ms 1812 KB Output is correct
82 Correct 24 ms 1200 KB Output is correct
83 Correct 3 ms 696 KB Output is correct
84 Correct 17 ms 2004 KB Output is correct
85 Correct 33 ms 1212 KB Output is correct
86 Correct 2 ms 436 KB Output is correct
87 Correct 2 ms 436 KB Output is correct
88 Correct 2 ms 436 KB Output is correct
89 Correct 2 ms 692 KB Output is correct
90 Correct 2 ms 684 KB Output is correct
91 Correct 2 ms 708 KB Output is correct
92 Correct 2 ms 692 KB Output is correct
93 Correct 5 ms 1240 KB Output is correct
94 Correct 4 ms 984 KB Output is correct
95 Correct 5 ms 1484 KB Output is correct
96 Correct 5 ms 976 KB Output is correct
97 Correct 2 ms 692 KB Output is correct