Submission #1043242

# Submission time Handle Problem Language Result Execution time Memory
1043242 2024-08-04T05:47:10 Z Alihan_8 The Big Prize (IOI17_prize) C++17
94.62 / 100
31 ms 6264 KB
#include "prize.h"
 
#include <bits/stdc++.h>
 
using namespace std;
 
#define all(x) x.begin(), x.end()
#define ar array
#define pb push_back
#define ln '\n'
//#define int long long
 
using i64 = long long;
 
template <class F, class _S>
bool chmin(F &u, const _S &v){
    bool flag = false;
    if ( u > v ){
        u = v; flag |= true;
    }
    return flag;
}
 
template <class F, class _S>
bool chmax(F &u, const _S &v){
    bool flag = false;
    if ( u < v ){
        u = v; flag |= true;
    }
    return flag;
}
 
const int B = 500;
 
int find_best(int n){
	vector <vector<int>> dp(n);	
	
	auto f = [&](int j){
		if ( dp[j].empty() ){
			dp[j] = ask(j);
		}
		
		return dp[j];
	};
	
	auto g = [&](int j){
		return f(j)[0] + f(j)[1];
	};
	
	int mx = -1, k = -1;
	
	for ( int i = 0; i < min(n, B); i++ ){
		if ( chmax(mx, g(i)) ){
			k = i;
		}
		
		if ( g(i) == 0 ){
			return i;
		}
	}
	
	for ( int i = k; i < n;){
		int l = i, r = min(n, l + B);
		
		if ( f(l) == f(r - 1) ){
			i = r - 1; continue;
		}
		
		while ( l + 1 < r ){
			int m = (l + r) / 2;
			
			if ( f(m)[1] != f(i)[1] ){
				r = m;
			} else l = m;
		}
		
		int j = r;
		
		while ( j < n && g(j) != g(i) ){
			if ( g(j) == 0 ){
				return j;
			} j++;
		}
		
		i = j;
	}
	
	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 6 ms 4952 KB Output is correct
3 Correct 5 ms 4952 KB Output is correct
4 Correct 5 ms 5208 KB Output is correct
5 Correct 5 ms 4952 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 4 ms 4952 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 4 ms 4952 KB Output is correct
10 Correct 4 ms 5208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 4952 KB Output is correct
2 Correct 5 ms 4952 KB Output is correct
3 Correct 5 ms 4952 KB Output is correct
4 Correct 5 ms 5208 KB Output is correct
5 Correct 5 ms 5208 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 4 ms 4952 KB Output is correct
8 Correct 3 ms 4952 KB Output is correct
9 Correct 4 ms 5040 KB Output is correct
10 Correct 5 ms 4952 KB Output is correct
11 Correct 5 ms 4952 KB Output is correct
12 Correct 3 ms 5032 KB Output is correct
13 Correct 6 ms 4952 KB Output is correct
14 Correct 4 ms 856 KB Output is correct
15 Correct 8 ms 5208 KB Output is correct
16 Correct 24 ms 5256 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Partially correct 30 ms 5208 KB Partially correct - number of queries: 5506
19 Correct 5 ms 4952 KB Output is correct
20 Correct 9 ms 2732 KB Output is correct
21 Correct 9 ms 5208 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 4 ms 4952 KB Output is correct
24 Correct 2 ms 4952 KB Output is correct
25 Correct 17 ms 5208 KB Output is correct
26 Correct 12 ms 5208 KB Output is correct
27 Correct 3 ms 4952 KB Output is correct
28 Partially correct 31 ms 5208 KB Partially correct - number of queries: 5324
29 Correct 17 ms 5208 KB Output is correct
30 Partially correct 24 ms 5460 KB Partially correct - number of queries: 5538
31 Correct 3 ms 5208 KB Output is correct
32 Correct 4 ms 4952 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 10 ms 5036 KB Output is correct
35 Correct 5 ms 4952 KB Output is correct
36 Correct 7 ms 4952 KB Output is correct
37 Correct 3 ms 4952 KB Output is correct
38 Correct 3 ms 4952 KB Output is correct
39 Correct 14 ms 5260 KB Output is correct
40 Correct 25 ms 5208 KB Output is correct
41 Correct 14 ms 5200 KB Output is correct
42 Correct 30 ms 5660 KB Output is correct
43 Correct 10 ms 5204 KB Output is correct
44 Correct 9 ms 5172 KB Output is correct
45 Correct 11 ms 5208 KB Output is correct
46 Correct 2 ms 4948 KB Output is correct
47 Correct 12 ms 5216 KB Output is correct
48 Correct 20 ms 5208 KB Output is correct
49 Correct 3 ms 4952 KB Output is correct
50 Partially correct 26 ms 5208 KB Partially correct - number of queries: 5488
51 Correct 13 ms 5208 KB Output is correct
52 Correct 3 ms 4952 KB Output is correct
53 Correct 5 ms 4952 KB Output is correct
54 Correct 14 ms 5208 KB Output is correct
55 Correct 3 ms 4952 KB Output is correct
56 Partially correct 22 ms 5208 KB Partially correct - number of queries: 5500
57 Correct 14 ms 5188 KB Output is correct
58 Correct 18 ms 5224 KB Output is correct
59 Correct 10 ms 5200 KB Output is correct
60 Correct 13 ms 5208 KB Output is correct
61 Correct 5 ms 5152 KB Output is correct
62 Correct 3 ms 4952 KB Output is correct
63 Correct 4 ms 4952 KB Output is correct
64 Correct 4 ms 5148 KB Output is correct
65 Correct 5 ms 4952 KB Output is correct
66 Correct 9 ms 5464 KB Output is correct
67 Correct 6 ms 5168 KB Output is correct
68 Correct 2 ms 4952 KB Output is correct
69 Correct 6 ms 5040 KB Output is correct
70 Correct 5 ms 4952 KB Output is correct
71 Partially correct 19 ms 5444 KB Partially correct - number of queries: 5280
72 Correct 6 ms 4952 KB Output is correct
73 Partially correct 17 ms 5208 KB Partially correct - number of queries: 5217
74 Partially correct 22 ms 5464 KB Partially correct - number of queries: 5244
75 Correct 5 ms 4952 KB Output is correct
76 Correct 22 ms 5208 KB Output is correct
77 Partially correct 20 ms 6264 KB Partially correct - number of queries: 5538
78 Correct 7 ms 4952 KB Output is correct
79 Correct 13 ms 5464 KB Output is correct
80 Partially correct 29 ms 5460 KB Partially correct - number of queries: 5505
81 Partially correct 21 ms 5456 KB Partially correct - number of queries: 5511
82 Partially correct 28 ms 5408 KB Partially correct - number of queries: 5466
83 Correct 5 ms 5160 KB Output is correct
84 Correct 19 ms 5456 KB Output is correct
85 Partially correct 25 ms 5168 KB Partially correct - number of queries: 5481
86 Correct 7 ms 5464 KB Output is correct
87 Correct 4 ms 5152 KB Output is correct
88 Correct 4 ms 4952 KB Output is correct
89 Correct 6 ms 4952 KB Output is correct
90 Correct 4 ms 4948 KB Output is correct
91 Correct 5 ms 5208 KB Output is correct
92 Correct 4 ms 4952 KB Output is correct
93 Correct 5 ms 4952 KB Output is correct
94 Correct 7 ms 5180 KB Output is correct
95 Correct 6 ms 5396 KB Output is correct
96 Correct 9 ms 4952 KB Output is correct
97 Correct 6 ms 4952 KB Output is correct