Submission #987066

# Submission time Handle Problem Language Result Execution time Memory
987066 2024-05-21T19:17:38 Z VMaksimoski008 The Big Prize (IOI17_prize) C++17
90 / 100
52 ms 2136 KB
#include "prize.h"
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;

pii memo[200005];

pii query(int p) {
	if(memo[p] != pii{ -1, -1 }) return memo[p];
	vector<int> res = ask(p);
	return memo[p] = { res[0], res[1] };
}

int sum(int p) { return query(p).first + query(p).second; }
int L(int p) { return query(p).first; }
int R(int p) { return query(p).second; }

int find_best(int n) {
	//da se iskoristat 2ki?????
	for(int i=0; i<n; i++) memo[i] = { -1, -1 };

	int curr = -1, mx = 0;
	set<int> s;
	for(int i=0; i<min(480, n); i++) {
		mx = max(mx, sum(i));
		if(sum(i) == 0) return i;
	}

	int R = n-1, cnt = 1;
	for(int i=0; i<min(480, n); i++) {
		if(sum(i) == 1) {
			if(L(i) == 1) {
				R = i;
				break;
			}
		}

		if(sum(i) != mx) {
			curr = i;
			cnt++;
		}
	}

	for(int i=cnt; i<=mx; i++) {
		int l=curr+1, r=n-1, pos=n-1;

		while(l <= r) {
			int mid = (l + r) / 2;
			if(sum(mid) == 0) return mid;

			if(sum(mid) == mx) {
				if(L(mid) >= i) pos = mid, r = mid - 1;
				else l = mid + 1;
			} else {
				pos = mid;
				r = mid - 1;
			}
		}
		
		curr = pos;
	}

	return 0;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:29:6: warning: variable 'R' set but not used [-Wunused-but-set-variable]
   29 |  int R = n-1, cnt = 1;
      |      ^
# Verdict Execution time Memory Grader output
1 Correct 3 ms 1880 KB Output is correct
2 Correct 3 ms 1880 KB Output is correct
3 Correct 3 ms 1880 KB Output is correct
4 Correct 3 ms 1880 KB Output is correct
5 Correct 4 ms 1888 KB Output is correct
6 Correct 1 ms 1880 KB Output is correct
7 Correct 3 ms 1880 KB Output is correct
8 Correct 3 ms 1880 KB Output is correct
9 Correct 3 ms 1880 KB Output is correct
10 Correct 3 ms 1880 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 1880 KB Output is correct
2 Correct 3 ms 1880 KB Output is correct
3 Correct 4 ms 1880 KB Output is correct
4 Correct 5 ms 1880 KB Output is correct
5 Correct 3 ms 1880 KB Output is correct
6 Correct 2 ms 1880 KB Output is correct
7 Correct 3 ms 1880 KB Output is correct
8 Correct 4 ms 1880 KB Output is correct
9 Correct 4 ms 1880 KB Output is correct
10 Correct 3 ms 1880 KB Output is correct
11 Correct 4 ms 1880 KB Output is correct
12 Correct 3 ms 1880 KB Output is correct
13 Correct 5 ms 1880 KB Output is correct
14 Correct 4 ms 600 KB Output is correct
15 Correct 8 ms 1880 KB Output is correct
16 Partially correct 31 ms 1880 KB Partially correct - number of queries: 6966
17 Correct 3 ms 1880 KB Output is correct
18 Partially correct 47 ms 1880 KB Partially correct - number of queries: 8073
19 Correct 3 ms 1880 KB Output is correct
20 Correct 9 ms 1112 KB Output is correct
21 Correct 15 ms 1880 KB Output is correct
22 Correct 5 ms 1880 KB Output is correct
23 Correct 3 ms 1880 KB Output is correct
24 Correct 3 ms 1880 KB Output is correct
25 Correct 19 ms 1880 KB Output is correct
26 Correct 19 ms 2132 KB Output is correct
27 Correct 4 ms 1880 KB Output is correct
28 Partially correct 52 ms 1880 KB Partially correct - number of queries: 7663
29 Partially correct 30 ms 1880 KB Partially correct - number of queries: 5923
30 Partially correct 41 ms 2136 KB Partially correct - number of queries: 8011
31 Correct 3 ms 1880 KB Output is correct
32 Correct 5 ms 1880 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 15 ms 1880 KB Output is correct
35 Correct 4 ms 1880 KB Output is correct
36 Correct 8 ms 1880 KB Output is correct
37 Correct 4 ms 1880 KB Output is correct
38 Correct 3 ms 1880 KB Output is correct
39 Correct 21 ms 1880 KB Output is correct
40 Partially correct 34 ms 1880 KB Partially correct - number of queries: 6938
41 Partially correct 25 ms 1880 KB Partially correct - number of queries: 5045
42 Partially correct 25 ms 1880 KB Partially correct - number of queries: 5045
43 Correct 20 ms 1880 KB Output is correct
44 Correct 20 ms 1880 KB Output is correct
45 Correct 16 ms 1880 KB Output is correct
46 Correct 3 ms 1880 KB Output is correct
47 Correct 19 ms 1880 KB Output is correct
48 Partially correct 25 ms 1880 KB Partially correct - number of queries: 6113
49 Correct 6 ms 2136 KB Output is correct
50 Partially correct 41 ms 1880 KB Partially correct - number of queries: 8065
51 Correct 28 ms 1880 KB Output is correct
52 Correct 4 ms 1880 KB Output is correct
53 Correct 3 ms 1880 KB Output is correct
54 Correct 17 ms 1880 KB Output is correct
55 Correct 3 ms 2076 KB Output is correct
56 Partially correct 35 ms 1880 KB Partially correct - number of queries: 8073
57 Partially correct 28 ms 1880 KB Partially correct - number of queries: 6021
58 Partially correct 26 ms 1880 KB Partially correct - number of queries: 6089
59 Partially correct 27 ms 1880 KB Partially correct - number of queries: 5041
60 Correct 27 ms 1880 KB Output is correct
61 Correct 3 ms 1880 KB Output is correct
62 Correct 3 ms 1880 KB Output is correct
63 Correct 4 ms 2036 KB Output is correct
64 Correct 4 ms 1880 KB Output is correct
65 Correct 3 ms 1880 KB Output is correct
66 Correct 7 ms 1880 KB Output is correct
67 Correct 4 ms 1880 KB Output is correct
68 Correct 3 ms 1880 KB Output is correct
69 Correct 5 ms 1880 KB Output is correct
70 Correct 3 ms 1880 KB Output is correct
71 Partially correct 45 ms 1880 KB Partially correct - number of queries: 8250
72 Correct 5 ms 1880 KB Output is correct
73 Partially correct 42 ms 1880 KB Partially correct - number of queries: 8139
74 Partially correct 49 ms 2132 KB Partially correct - number of queries: 8199
75 Correct 6 ms 1888 KB Output is correct
76 Partially correct 32 ms 1880 KB Partially correct - number of queries: 7096
77 Partially correct 45 ms 1880 KB Partially correct - number of queries: 8116
78 Correct 5 ms 1880 KB Output is correct
79 Correct 21 ms 1880 KB Output is correct
80 Partially correct 34 ms 1880 KB Partially correct - number of queries: 8106
81 Partially correct 36 ms 1880 KB Partially correct - number of queries: 8103
82 Partially correct 51 ms 1880 KB Partially correct - number of queries: 8017
83 Correct 5 ms 1880 KB Output is correct
84 Partially correct 33 ms 1880 KB Partially correct - number of queries: 6695
85 Partially correct 45 ms 1880 KB Partially correct - number of queries: 8040
86 Correct 3 ms 1880 KB Output is correct
87 Correct 3 ms 1880 KB Output is correct
88 Correct 3 ms 2132 KB Output is correct
89 Correct 3 ms 1880 KB Output is correct
90 Correct 3 ms 1880 KB Output is correct
91 Correct 3 ms 1880 KB Output is correct
92 Correct 3 ms 1880 KB Output is correct
93 Correct 5 ms 1880 KB Output is correct
94 Correct 6 ms 1880 KB Output is correct
95 Correct 5 ms 1880 KB Output is correct
96 Correct 5 ms 1880 KB Output is correct
97 Correct 3 ms 2076 KB Output is correct