Submission #1043244

# Submission time Handle Problem Language Result Execution time Memory
1043244 2024-08-04T05:51:32 Z Alihan_8 The Big Prize (IOI17_prize) C++17
94.69 / 100
30 ms 5744 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 = 480;
 
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 4 ms 4952 KB Output is correct
2 Correct 3 ms 4952 KB Output is correct
3 Correct 3 ms 4952 KB Output is correct
4 Correct 7 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 5 ms 5208 KB Output is correct
8 Correct 5 ms 4952 KB Output is correct
9 Correct 4 ms 4952 KB Output is correct
10 Correct 4 ms 4952 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 4 ms 5208 KB Output is correct
2 Correct 4 ms 5032 KB Output is correct
3 Correct 4 ms 5208 KB Output is correct
4 Correct 5 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 1 ms 4952 KB Output is correct
7 Correct 5 ms 5204 KB Output is correct
8 Correct 4 ms 4952 KB Output is correct
9 Correct 5 ms 5212 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 4952 KB Output is correct
13 Correct 6 ms 5092 KB Output is correct
14 Correct 3 ms 856 KB Output is correct
15 Correct 5 ms 5032 KB Output is correct
16 Correct 21 ms 5708 KB Output is correct
17 Correct 3 ms 4952 KB Output is correct
18 Partially correct 16 ms 5460 KB Partially correct - number of queries: 5234
19 Correct 3 ms 4952 KB Output is correct
20 Correct 7 ms 2904 KB Output is correct
21 Correct 10 ms 5172 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 4 ms 4952 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 14 ms 5208 KB Output is correct
26 Correct 14 ms 5208 KB Output is correct
27 Correct 4 ms 4952 KB Output is correct
28 Partially correct 20 ms 5484 KB Partially correct - number of queries: 5309
29 Correct 22 ms 5432 KB Output is correct
30 Partially correct 24 ms 5208 KB Partially correct - number of queries: 5518
31 Correct 3 ms 5208 KB Output is correct
32 Correct 7 ms 5168 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 8 ms 5200 KB Output is correct
35 Correct 4 ms 4952 KB Output is correct
36 Correct 7 ms 5232 KB Output is correct
37 Correct 5 ms 4952 KB Output is correct
38 Correct 4 ms 4952 KB Output is correct
39 Correct 11 ms 5180 KB Output is correct
40 Partially correct 22 ms 5412 KB Partially correct - number of queries: 5138
41 Correct 20 ms 5432 KB Output is correct
42 Correct 17 ms 5208 KB Output is correct
43 Correct 8 ms 5212 KB Output is correct
44 Correct 10 ms 5208 KB Output is correct
45 Correct 7 ms 4952 KB Output is correct
46 Correct 4 ms 4952 KB Output is correct
47 Correct 12 ms 5208 KB Output is correct
48 Correct 16 ms 5248 KB Output is correct
49 Correct 5 ms 4952 KB Output is correct
50 Partially correct 21 ms 5208 KB Partially correct - number of queries: 5241
51 Correct 14 ms 5208 KB Output is correct
52 Correct 3 ms 4952 KB Output is correct
53 Correct 6 ms 4952 KB Output is correct
54 Correct 10 ms 5208 KB Output is correct
55 Correct 3 ms 4952 KB Output is correct
56 Partially correct 26 ms 5744 KB Partially correct - number of queries: 5233
57 Correct 16 ms 5432 KB Output is correct
58 Correct 17 ms 5208 KB Output is correct
59 Correct 9 ms 5208 KB Output is correct
60 Correct 13 ms 5184 KB Output is correct
61 Correct 5 ms 4952 KB Output is correct
62 Correct 3 ms 4952 KB Output is correct
63 Correct 6 ms 5208 KB Output is correct
64 Correct 4 ms 4952 KB Output is correct
65 Correct 5 ms 4952 KB Output is correct
66 Correct 6 ms 4952 KB Output is correct
67 Correct 3 ms 4952 KB Output is correct
68 Correct 3 ms 4952 KB Output is correct
69 Correct 8 ms 5724 KB Output is correct
70 Correct 5 ms 4952 KB Output is correct
71 Partially correct 26 ms 5432 KB Partially correct - number of queries: 5282
72 Correct 5 ms 4952 KB Output is correct
73 Partially correct 22 ms 5416 KB Partially correct - number of queries: 5219
74 Partially correct 25 ms 5244 KB Partially correct - number of queries: 5246
75 Correct 4 ms 4952 KB Output is correct
76 Correct 21 ms 5464 KB Output is correct
77 Partially correct 23 ms 5452 KB Partially correct - number of queries: 5531
78 Correct 7 ms 5208 KB Output is correct
79 Correct 10 ms 5208 KB Output is correct
80 Partially correct 22 ms 5208 KB Partially correct - number of queries: 5525
81 Partially correct 28 ms 5448 KB Partially correct - number of queries: 5517
82 Partially correct 30 ms 5208 KB Partially correct - number of queries: 5468
83 Correct 5 ms 4952 KB Output is correct
84 Correct 19 ms 5244 KB Output is correct
85 Partially correct 22 ms 5464 KB Partially correct - number of queries: 5478
86 Correct 6 ms 4952 KB Output is correct
87 Correct 4 ms 4952 KB Output is correct
88 Correct 6 ms 5208 KB Output is correct
89 Correct 5 ms 4948 KB Output is correct
90 Correct 5 ms 4952 KB Output is correct
91 Correct 3 ms 4952 KB Output is correct
92 Correct 7 ms 4952 KB Output is correct
93 Correct 6 ms 4952 KB Output is correct
94 Correct 5 ms 4952 KB Output is correct
95 Correct 5 ms 5208 KB Output is correct
96 Correct 6 ms 5400 KB Output is correct
97 Correct 5 ms 4952 KB Output is correct