Submission #931889

# Submission time Handle Problem Language Result Execution time Memory
931889 2024-02-22T14:12:53 Z Lobo The Big Prize (IOI17_prize) C++17
99.06 / 100
31 ms 2424 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/400;
 	stack<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(l,r)); 		
 	}

 	while(q.size()) {
 		int l = q.top().fr;
 		int r = q.top().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;
 		q.push(mp(l,mid));
 		q.push(mp(mid,r));
 	}

 	assert(false);
 	return -1;


}
# Verdict Execution time Memory Grader output
1 Correct 2 ms 952 KB Output is correct
2 Correct 1 ms 444 KB Output is correct
3 Correct 1 ms 440 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 444 KB Output is correct
6 Correct 2 ms 456 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 1 ms 444 KB Output is correct
9 Correct 1 ms 436 KB Output is correct
10 Correct 2 ms 452 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 456 KB Output is correct
2 Correct 1 ms 432 KB Output is correct
3 Correct 1 ms 448 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 2 ms 708 KB Output is correct
7 Correct 2 ms 696 KB Output is correct
8 Correct 1 ms 436 KB Output is correct
9 Correct 1 ms 440 KB Output is correct
10 Correct 2 ms 452 KB Output is correct
11 Correct 3 ms 456 KB Output is correct
12 Correct 3 ms 716 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 4 ms 976 KB Output is correct
15 Correct 19 ms 1036 KB Output is correct
16 Correct 5 ms 692 KB Output is correct
17 Partially correct 26 ms 1692 KB Partially correct - number of queries: 5094
18 Correct 1 ms 344 KB Output is correct
19 Correct 21 ms 1344 KB Output is correct
20 Correct 9 ms 1292 KB Output is correct
21 Correct 16 ms 1588 KB Output is correct
22 Correct 22 ms 1264 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 3 ms 964 KB Output is correct
25 Correct 10 ms 968 KB Output is correct
26 Correct 11 ms 1296 KB Output is correct
27 Correct 2 ms 460 KB Output is correct
28 Correct 1 ms 436 KB Output is correct
29 Correct 2 ms 452 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Partially correct 22 ms 1308 KB Partially correct - number of queries: 5004
32 Correct 1 ms 696 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 21 ms 1308 KB Output is correct
35 Correct 1 ms 440 KB Output is correct
36 Correct 20 ms 1548 KB Output is correct
37 Correct 3 ms 472 KB Output is correct
38 Correct 2 ms 712 KB Output is correct
39 Correct 13 ms 1516 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 10 ms 1020 KB Output is correct
42 Correct 11 ms 1264 KB Output is correct
43 Correct 16 ms 980 KB Output is correct
44 Correct 14 ms 1228 KB Output is correct
45 Correct 17 ms 1268 KB Output is correct
46 Partially correct 22 ms 2200 KB Partially correct - number of queries: 5035
47 Correct 13 ms 1028 KB Output is correct
48 Correct 7 ms 1008 KB Output is correct
49 Correct 27 ms 736 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 15 ms 1816 KB Output is correct
52 Partially correct 23 ms 2424 KB Partially correct - number of queries: 5013
53 Correct 0 ms 440 KB Output is correct
54 Correct 13 ms 840 KB Output is correct
55 Partially correct 31 ms 1536 KB Partially correct - number of queries: 5013
56 Correct 0 ms 344 KB Output is correct
57 Correct 9 ms 892 KB Output is correct
58 Correct 6 ms 1016 KB Output is correct
59 Correct 11 ms 1272 KB Output is correct
60 Correct 12 ms 1004 KB Output is correct
61 Correct 1 ms 440 KB Output is correct
62 Correct 2 ms 712 KB Output is correct
63 Correct 1 ms 696 KB Output is correct
64 Correct 1 ms 696 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 344 KB Output is correct
68 Correct 2 ms 712 KB Output is correct
69 Correct 0 ms 432 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 30 ms 812 KB Output is correct
72 Correct 3 ms 980 KB Output is correct
73 Correct 19 ms 1152 KB Output is correct
74 Correct 22 ms 1680 KB Output is correct
75 Correct 2 ms 464 KB Output is correct
76 Correct 22 ms 896 KB Output is correct
77 Partially correct 27 ms 1244 KB Partially correct - number of queries: 5026
78 Correct 3 ms 948 KB Output is correct
79 Correct 12 ms 1212 KB Output is correct
80 Partially correct 25 ms 1564 KB Partially correct - number of queries: 5038
81 Partially correct 25 ms 2084 KB Partially correct - number of queries: 5027
82 Partially correct 22 ms 1772 KB Partially correct - number of queries: 5030
83 Correct 3 ms 692 KB Output is correct
84 Correct 23 ms 1588 KB Output is correct
85 Correct 22 ms 1880 KB Output is correct
86 Correct 2 ms 696 KB Output is correct
87 Correct 2 ms 692 KB Output is correct
88 Correct 2 ms 696 KB Output is correct
89 Correct 2 ms 440 KB Output is correct
90 Correct 2 ms 440 KB Output is correct
91 Correct 2 ms 436 KB Output is correct
92 Correct 2 ms 696 KB Output is correct
93 Correct 3 ms 1156 KB Output is correct
94 Correct 3 ms 732 KB Output is correct
95 Correct 3 ms 708 KB Output is correct
96 Correct 3 ms 708 KB Output is correct
97 Correct 0 ms 440 KB Output is correct