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Submission #760531

# Submission time Handle Problem Language Result Execution time Memory
760531 2023-06-17T17:47:24 Z raysh07 The Big Prize (IOI17_prize) C++17
90 / 100
 67 ms 2568 KB 
#include "prize.h"
#include <bits/stdc++.h> 
using namespace std;

const int N = 2e5 + 69;
vector <int> a;
int f[N], mx;
int n;
map <int, vector<int>> mp;

vector <int> ask2(int x){
    if (mp.find(x) != mp.end()) return mp[x];
    return mp[x] = ask(x);
}

void upd(int x){
    x++;
    for (int i = x; i <= n; i += i & (-i)) f[i]++;
}

int query(int x){
    x++;
    int res = 0;
    for (int i = x; i; i -= i & (-i)) res += f[i];
    return res;
}

void report(int x){
    upd(a[x]);
    a.erase(a.begin() + x);
}

int find(){
    int l = 0, r = a.size() - 1;
    
    while (l != r){
        // cout << l << " " << r << "\n";
        int m = (l + r)/2;
        
        auto g = ask2(a[m]);
        int g1 = query(a[m]);
        
        // cout << m << " " << g[0] << " " << g1 << "\n";
        if (g[0] + g[1] < mx){
            if (g[0] + g[1] == 0) return a[m];
            report(m);
            return -1;
        }
        if (g1 < g[0]) {
            r = m - 1;
        } else {
            l = m + 1;
        }
    }
    
    // cout << l << " " << r << "\n";
    auto g = ask2(a[l]);
    if (g[0] + g[1] == 0) return a[l];
    report(l);
    return -1;
}

int find_best(int m) {
    n = m;
    vector<vector<int>> ok;
	for (int i = 0; i < min(n, 500); i++){
	    auto get = ask2(i);
	    ok.push_back(get);
	    
	    mx = max(mx, get[0] + get[1]);
	}
	
// 	if (mx != 1){
// 	    cout << n << "\n";
// 	    for (auto x : ok){
// 	        for (auto y : x) cout << y << " ";
// 	        cout << "\n";
// 	    }
// 	    return 0;
// 	}
	
	for (int i = 0; i < n; i++) a.push_back(i);
	
	while (true){
	    int get = find();
	    if (get > -1) return get;
	}
	assert(false);
	return 0;
}

// int main(){
//     // int t; cin >> t;
    
//     // while (t--){
//     //     int n = 3 + rand() % 10;
//     //     int x = rand() % n;
        
//     //     a.clear();
//     //     mx = 0;
//     //     for (int i = 0; i <= n; i++) f[i] = 0, a1[i] = a2[i] = 0;
        
//     //     for (int i = 0; i < x; i++) a2[i] = 1;
//     //     for (int i = x + 1; i < n; i++) a1[i] = 1;
        
//     //     int get = find_best(n);
//     //     if (get != x){
//     //         cout << n << " " << x << "\n";
//     //         return 0;
//     //     }
//     // }
    
//     int n; cin >> n;
//     for (int i = 0; i < n; i++) cin >> a1[i];
//     for (int i = 0; i < n; i++) cin >> a2[i];
    
//     cout << find_best(n);
//     return 0;
// }

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1452 KB Output is correct
2 Correct 4 ms 1536 KB Output is correct
3 Correct 6 ms 1528 KB Output is correct
4 Correct 3 ms 1512 KB Output is correct
5 Correct 5 ms 1448 KB Output is correct
6 Correct 3 ms 1516 KB Output is correct
7 Correct 5 ms 1448 KB Output is correct
8 Correct 7 ms 1504 KB Output is correct
9 Correct 3 ms 1544 KB Output is correct
10 Correct 7 ms 1520 KB Output is correct

Subtask #2
70.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1508 KB Output is correct
2 Correct 5 ms 1484 KB Output is correct
3 Correct 6 ms 1444 KB Output is correct
4 Correct 7 ms 1492 KB Output is correct
5 Correct 4 ms 1504 KB Output is correct
6 Correct 6 ms 1440 KB Output is correct
7 Correct 5 ms 1444 KB Output is correct
8 Correct 4 ms 1496 KB Output is correct
9 Correct 4 ms 1452 KB Output is correct
10 Correct 5 ms 1484 KB Output is correct
11 Correct 7 ms 1480 KB Output is correct
12 Correct 5 ms 1492 KB Output is correct
13 Correct 7 ms 1584 KB Output is correct
14 Correct 8 ms 628 KB Output is correct
15 Correct 11 ms 1512 KB Output is correct
16 Partially correct 47 ms 2272 KB Partially correct - number of queries: 5037
17 Correct 3 ms 1508 KB Output is correct
18 Partially correct 44 ms 2456 KB Partially correct - number of queries: 6000
19 Correct 5 ms 1516 KB Output is correct
20 Correct 16 ms 1076 KB Output is correct
21 Correct 29 ms 1588 KB Output is correct
22 Correct 12 ms 1520 KB Output is correct
23 Correct 8 ms 1532 KB Output is correct
24 Correct 3 ms 1484 KB Output is correct
25 Correct 27 ms 1928 KB Output is correct
26 Correct 37 ms 1868 KB Output is correct
27 Correct 4 ms 1544 KB Output is correct
28 Partially correct 29 ms 2440 KB Partially correct - number of queries: 5501
29 Correct 44 ms 2180 KB Output is correct
30 Partially correct 46 ms 2464 KB Partially correct - number of queries: 5931
31 Correct 3 ms 1516 KB Output is correct
32 Correct 8 ms 1556 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 16 ms 1600 KB Output is correct
35 Correct 6 ms 1472 KB Output is correct
36 Correct 15 ms 1484 KB Output is correct
37 Correct 4 ms 1524 KB Output is correct
38 Correct 6 ms 1500 KB Output is correct
39 Correct 21 ms 1692 KB Output is correct
40 Partially correct 37 ms 2388 KB Partially correct - number of queries: 5158
41 Correct 35 ms 1968 KB Output is correct
42 Correct 30 ms 1944 KB Output is correct
43 Correct 19 ms 1880 KB Output is correct
44 Correct 15 ms 1644 KB Output is correct
45 Correct 19 ms 1596 KB Output is correct
46 Correct 3 ms 1504 KB Output is correct
47 Correct 27 ms 1692 KB Output is correct
48 Correct 50 ms 2116 KB Output is correct
49 Correct 11 ms 1452 KB Output is correct
50 Partially correct 30 ms 2540 KB Partially correct - number of queries: 6012
51 Correct 15 ms 1756 KB Output is correct
52 Correct 7 ms 1436 KB Output is correct
53 Correct 7 ms 1528 KB Output is correct
54 Correct 17 ms 1740 KB Output is correct
55 Correct 5 ms 1484 KB Output is correct
56 Partially correct 38 ms 2468 KB Partially correct - number of queries: 6012
57 Correct 27 ms 2172 KB Output is correct
58 Correct 35 ms 2092 KB Output is correct
59 Correct 39 ms 1860 KB Output is correct
60 Correct 29 ms 1872 KB Output is correct
61 Correct 6 ms 1456 KB Output is correct
62 Correct 6 ms 1496 KB Output is correct
63 Correct 7 ms 1476 KB Output is correct
64 Correct 4 ms 1488 KB Output is correct
65 Correct 6 ms 1484 KB Output is correct
66 Correct 39 ms 1616 KB Output is correct
67 Correct 12 ms 1492 KB Output is correct
68 Correct 8 ms 1484 KB Output is correct
69 Correct 25 ms 1572 KB Output is correct
70 Correct 7 ms 1452 KB Output is correct
71 Partially correct 63 ms 2568 KB Partially correct - number of queries: 6565
72 Correct 11 ms 1620 KB Output is correct
73 Partially correct 67 ms 2548 KB Partially correct - number of queries: 6504
74 Partially correct 53 ms 2508 KB Partially correct - number of queries: 6546
75 Correct 4 ms 1484 KB Output is correct
76 Partially correct 55 ms 2468 KB Partially correct - number of queries: 5715
77 Partially correct 57 ms 2456 KB Partially correct - number of queries: 6070
78 Correct 9 ms 1600 KB Output is correct
79 Correct 20 ms 2128 KB Output is correct
80 Partially correct 53 ms 2440 KB Partially correct - number of queries: 6045
81 Partially correct 62 ms 2464 KB Partially correct - number of queries: 6047
82 Partially correct 40 ms 2516 KB Partially correct - number of queries: 6013
83 Correct 8 ms 1520 KB Output is correct
84 Partially correct 52 ms 2360 KB Partially correct - number of queries: 5067
85 Partially correct 46 ms 2532 KB Partially correct - number of queries: 6043
86 Correct 38 ms 1592 KB Output is correct
87 Correct 9 ms 1472 KB Output is correct
88 Correct 46 ms 1464 KB Output is correct
89 Correct 36 ms 1584 KB Output is correct
90 Correct 7 ms 1524 KB Output is correct
91 Correct 29 ms 1492 KB Output is correct
92 Correct 43 ms 1536 KB Output is correct
93 Correct 38 ms 1736 KB Output is correct
94 Correct 50 ms 1732 KB Output is correct
95 Correct 50 ms 1768 KB Output is correct
96 Correct 32 ms 1728 KB Output is correct
97 Correct 35 ms 1568 KB Output is correct