oj.uz

Submission #1001116

# Submission time Handle Problem Language Result Execution time Memory
1001116 2024-06-18T14:52:45 Z c2zi6 The Big Prize (IOI17_prize) C++14
96.36 / 100
 40 ms 5724 KB 
#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "prize.h"

VVI qr;
VI myask(int ind) {
    if (qr[ind].size()) return qr[ind];
    return qr[ind] = ask(ind);
}
int sum(int ind) {
    return qr[ind][0] + qr[ind][1];
}

int dfs(int l, int r) {
    /*cout << "NOW PROCESSING " << l+1 << " " << r+1 << endl;*/
    myask(l);
    if (sum(l) == 0) return l;
    myask(r);
    if (sum(r) == 0) return r;
    if (l > r) return -1;
    if (sum(l) > sum(r)) return dfs(l, r-1);
    if (sum(l) < sum(r)) return dfs(l+1, r);
    if (qr[l][0] == qr[r][0]) return -1;
    int L = l, R = r;
    while (L + 1 < R) {
        int M = (L + R) / 2;
        myask(M);
        if (sum(M) == 0) return M;
        if (sum(M) != sum(l)) {
            int ret;
            ret = dfs(l, M);
            if (ret != -1) return ret;
            ret = dfs(M, r);
            if (ret != -1) return ret;
            return -1;
        }
        if (qr[M][0] - qr[l][0] == 0) L = M;
        else R = M;
    }
    return -1;
}

int find_best(int n) {
    qr = VVI(n);
    int sz = sqrt(n) * 0.8;
    int l = 0;
    int r = sz;
    while (true) {
        int ret = dfs(l, r);
        if (ret != -1) return ret;
        l = r+1;
        r = l + sz;
        if (l >= n) break;
        if (r >= n) r = n-1;
    }
    return -1;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 4 ms 5204 KB Output is correct
3 Correct 4 ms 5148 KB Output is correct
4 Correct 6 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 6 ms 4952 KB Output is correct
8 Correct 6 ms 5032 KB Output is correct
9 Correct 4 ms 5152 KB Output is correct
10 Correct 7 ms 4952 KB Output is correct

Subtask #2
76.36 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4952 KB Output is correct
2 Correct 7 ms 4952 KB Output is correct
3 Correct 5 ms 4952 KB Output is correct
4 Correct 6 ms 4952 KB Output is correct
5 Correct 4 ms 4952 KB Output is correct
6 Correct 2 ms 4952 KB Output is correct
7 Correct 6 ms 5208 KB Output is correct
8 Correct 4 ms 4952 KB Output is correct
9 Correct 7 ms 5720 KB Output is correct
10 Correct 7 ms 5208 KB Output is correct
11 Correct 4 ms 4952 KB Output is correct
12 Correct 1 ms 4952 KB Output is correct
13 Correct 6 ms 4952 KB Output is correct
14 Correct 1 ms 856 KB Output is correct
15 Correct 4 ms 4952 KB Output is correct
16 Correct 18 ms 5428 KB Output is correct
17 Correct 2 ms 4952 KB Output is correct
18 Partially correct 40 ms 5456 KB Partially correct - number of queries: 5148
19 Correct 2 ms 4952 KB Output is correct
20 Correct 7 ms 2816 KB Output is correct
21 Correct 10 ms 5156 KB Output is correct
22 Correct 4 ms 4952 KB Output is correct
23 Correct 2 ms 4952 KB Output is correct
24 Correct 1 ms 4952 KB Output is correct
25 Correct 13 ms 5208 KB Output is correct
26 Correct 15 ms 5200 KB Output is correct
27 Correct 3 ms 5204 KB Output is correct
28 Correct 24 ms 5192 KB Output is correct
29 Correct 25 ms 5208 KB Output is correct
30 Partially correct 22 ms 5208 KB Partially correct - number of queries: 5085
31 Correct 2 ms 4948 KB Output is correct
32 Correct 6 ms 4952 KB Output is correct
33 Correct 0 ms 344 KB Output is correct
34 Correct 8 ms 5032 KB Output is correct
35 Correct 7 ms 5164 KB Output is correct
36 Correct 6 ms 5176 KB Output is correct
37 Correct 3 ms 4952 KB Output is correct
38 Correct 2 ms 4952 KB Output is correct
39 Correct 11 ms 4952 KB Output is correct
40 Correct 28 ms 5180 KB Output is correct
41 Correct 20 ms 5200 KB Output is correct
42 Correct 10 ms 5216 KB Output is correct
43 Correct 14 ms 5204 KB Output is correct
44 Correct 10 ms 4952 KB Output is correct
45 Correct 9 ms 4952 KB Output is correct
46 Correct 2 ms 4948 KB Output is correct
47 Correct 11 ms 5400 KB Output is correct
48 Correct 15 ms 5448 KB Output is correct
49 Correct 3 ms 4952 KB Output is correct
50 Partially correct 19 ms 5172 KB Partially correct - number of queries: 5166
51 Correct 11 ms 4952 KB Output is correct
52 Correct 1 ms 4952 KB Output is correct
53 Correct 8 ms 4952 KB Output is correct
54 Correct 9 ms 4952 KB Output is correct
55 Correct 2 ms 4952 KB Output is correct
56 Partially correct 32 ms 5208 KB Partially correct - number of queries: 5169
57 Correct 20 ms 5208 KB Output is correct
58 Correct 13 ms 5160 KB Output is correct
59 Correct 14 ms 5400 KB Output is correct
60 Correct 13 ms 5204 KB Output is correct
61 Correct 4 ms 4952 KB Output is correct
62 Correct 3 ms 4952 KB Output is correct
63 Correct 6 ms 4952 KB Output is correct
64 Correct 5 ms 5152 KB Output is correct
65 Correct 8 ms 5208 KB Output is correct
66 Correct 14 ms 5208 KB Output is correct
67 Correct 8 ms 5208 KB Output is correct
68 Correct 2 ms 4952 KB Output is correct
69 Correct 7 ms 4952 KB Output is correct
70 Correct 5 ms 4952 KB Output is correct
71 Partially correct 23 ms 5208 KB Partially correct - number of queries: 5364
72 Correct 10 ms 5208 KB Output is correct
73 Partially correct 33 ms 5724 KB Partially correct - number of queries: 5301
74 Partially correct 25 ms 5208 KB Partially correct - number of queries: 5328
75 Correct 8 ms 5412 KB Output is correct
76 Correct 32 ms 5236 KB Output is correct
77 Partially correct 24 ms 5244 KB Partially correct - number of queries: 5174
78 Correct 8 ms 5208 KB Output is correct
79 Correct 10 ms 5208 KB Output is correct
80 Partially correct 20 ms 5172 KB Partially correct - number of queries: 5174
81 Partially correct 27 ms 5208 KB Partially correct - number of queries: 5167
82 Partially correct 26 ms 5208 KB Partially correct - number of queries: 5171
83 Correct 8 ms 5208 KB Output is correct
84 Correct 24 ms 5208 KB Output is correct
85 Partially correct 25 ms 5468 KB Partially correct - number of queries: 5190
86 Correct 7 ms 5216 KB Output is correct
87 Correct 7 ms 4952 KB Output is correct
88 Correct 6 ms 5404 KB Output is correct
89 Correct 7 ms 5168 KB Output is correct
90 Correct 5 ms 4948 KB Output is correct
91 Correct 7 ms 4952 KB Output is correct
92 Correct 6 ms 4952 KB Output is correct
93 Correct 5 ms 4952 KB Output is correct
94 Correct 7 ms 4952 KB Output is correct
95 Correct 7 ms 4952 KB Output is correct
96 Correct 7 ms 5204 KB Output is correct
97 Correct 8 ms 4952 KB Output is correct