Submission #931441

# Submission time Handle Problem Language Result Execution time Memory
931441 2024-02-21T19:39:16 Z Lobo The Big Prize (IOI17_prize) C++17
97.82 / 100
34 ms 1772 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/256;
 	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+1)/2;
 		q.push(mp(l,mid));
 		q.push(mp(mid,r));
 	}

 	assert(false);
 	return -1;


}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 436 KB Output is correct
2 Correct 1 ms 436 KB Output is correct
3 Correct 1 ms 432 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 440 KB Output is correct
6 Correct 2 ms 696 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 1 ms 944 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 1 ms 432 KB Output is correct
2 Correct 1 ms 436 KB Output is correct
3 Correct 1 ms 432 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 436 KB Output is correct
6 Correct 1 ms 436 KB Output is correct
7 Correct 1 ms 440 KB Output is correct
8 Correct 1 ms 440 KB Output is correct
9 Correct 1 ms 444 KB Output is correct
10 Correct 2 ms 612 KB Output is correct
11 Correct 2 ms 456 KB Output is correct
12 Correct 3 ms 472 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 4 ms 712 KB Output is correct
15 Correct 24 ms 1316 KB Output is correct
16 Correct 6 ms 968 KB Output is correct
17 Partially correct 27 ms 1344 KB Partially correct - number of queries: 5064
18 Correct 1 ms 344 KB Output is correct
19 Correct 24 ms 1144 KB Output is correct
20 Correct 9 ms 1020 KB Output is correct
21 Correct 14 ms 1312 KB Output is correct
22 Correct 15 ms 1304 KB Output is correct
23 Correct 2 ms 444 KB Output is correct
24 Correct 4 ms 888 KB Output is correct
25 Correct 9 ms 1308 KB Output is correct
26 Correct 10 ms 1772 KB Output is correct
27 Correct 1 ms 440 KB Output is correct
28 Correct 1 ms 440 KB Output is correct
29 Correct 2 ms 956 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Partially correct 28 ms 1372 KB Partially correct - number of queries: 5117
32 Correct 2 ms 432 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 19 ms 1076 KB Output is correct
35 Correct 1 ms 444 KB Output is correct
36 Correct 20 ms 1344 KB Output is correct
37 Correct 2 ms 952 KB Output is correct
38 Correct 2 ms 456 KB Output is correct
39 Correct 14 ms 1300 KB Output is correct
40 Correct 0 ms 344 KB Output is correct
41 Correct 11 ms 740 KB Output is correct
42 Correct 10 ms 1032 KB Output is correct
43 Correct 11 ms 1312 KB Output is correct
44 Correct 16 ms 1020 KB Output is correct
45 Correct 15 ms 1032 KB Output is correct
46 Partially correct 22 ms 756 KB Partially correct - number of queries: 5103
47 Correct 15 ms 1248 KB Output is correct
48 Correct 7 ms 1276 KB Output is correct
49 Correct 28 ms 1320 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 15 ms 840 KB Output is correct
52 Partially correct 22 ms 1452 KB Partially correct - number of queries: 5033
53 Correct 1 ms 344 KB Output is correct
54 Correct 13 ms 984 KB Output is correct
55 Partially correct 33 ms 1508 KB Partially correct - number of queries: 5092
56 Correct 0 ms 344 KB Output is correct
57 Correct 7 ms 1252 KB Output is correct
58 Correct 7 ms 504 KB Output is correct
59 Correct 12 ms 968 KB Output is correct
60 Correct 11 ms 1012 KB Output is correct
61 Correct 1 ms 344 KB Output is correct
62 Correct 2 ms 456 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 1 ms 440 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 696 KB Output is correct
69 Correct 0 ms 600 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 25 ms 1680 KB Output is correct
72 Correct 3 ms 724 KB Output is correct
73 Correct 23 ms 1180 KB Output is correct
74 Correct 21 ms 1016 KB Output is correct
75 Correct 2 ms 452 KB Output is correct
76 Correct 18 ms 1328 KB Output is correct
77 Partially correct 26 ms 1164 KB Partially correct - number of queries: 5218
78 Correct 3 ms 952 KB Output is correct
79 Correct 12 ms 756 KB Output is correct
80 Partially correct 34 ms 1224 KB Partially correct - number of queries: 5194
81 Partially correct 30 ms 1516 KB Partially correct - number of queries: 5215
82 Partially correct 31 ms 1756 KB Partially correct - number of queries: 5202
83 Correct 2 ms 696 KB Output is correct
84 Correct 22 ms 844 KB Output is correct
85 Partially correct 24 ms 1208 KB Partially correct - number of queries: 5205
86 Correct 3 ms 948 KB Output is correct
87 Correct 2 ms 440 KB Output is correct
88 Correct 2 ms 692 KB Output is correct
89 Correct 2 ms 436 KB Output is correct
90 Correct 2 ms 440 KB Output is correct
91 Correct 3 ms 600 KB Output is correct
92 Correct 2 ms 440 KB Output is correct
93 Correct 3 ms 968 KB Output is correct
94 Correct 2 ms 708 KB Output is correct
95 Correct 3 ms 700 KB Output is correct
96 Correct 2 ms 700 KB Output is correct
97 Correct 0 ms 344 KB Output is correct