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Submission #598502

# Submission time Handle Problem Language Result Execution time Memory
598502 2022-07-18T12:19:12 Z MohamedFaresNebili The Big Prize (IOI17_prize) C++14
100 / 100
 52 ms 1960 KB 
#include <bits/stdc++.h>
#include "prize.h"
/// #pragma GCC optimize ("Ofast")
/// #pragma GCC target ("avx2")
/// #pragma GCC optimize("unroll-loops")
 
                using namespace std;
 
                using ll = long long;
                using ld = long double;
                using ii = pair<ll, ll>;
                using vi = vector<int>;
 
                #define ff first
                #define ss second
                #define pb push_back
                #define all(x) (x).begin(), (x).end()
                #define lb lower_bound
 
                const int MOD = 1e9 + 7;
 
                int A[200005][2];
                int N, curr = 0, S = 0, res = -1;
 
                vector<int> query(int k) {
                    if(A[k][0] != -1)
                        return {A[k][0], A[k][1]};
                    vector<int> V = ask(k);
                    A[k][0] = V[0], A[k][1] = V[1];
                    return V;
                }
                void solve(int l, int r) {
                    if(res != -1) return;
                    vector<int> V = query(r);
                    if(V[0] + V[1] == curr && V[0] == S)
                        return;
                    if(l == r) {
                      	S++;
                        if(V[0] + V[1] == 0)
                            res = l;
                        return;
                    }
                    int md = (l + r) / 2;
                    solve(l, md); solve(md + 1, r);
                }
                void init() {
                    int calc = 0;
                    queue<pair<int, int>> Q;
                    Q.push({0, N - 1});
                    while(!Q.empty()) {
                        int l = Q.front().ff, r = Q.front().ss; Q.pop();
                        if(A[r][0] == -1) {
                            calc++; query(r);
                        }
                        curr = max(curr, A[r][0] + A[r][1]);
                        if(calc >= 500) return;
                        if(l == r) continue;
                        int md = (l + r) / 2;
                        Q.push({l, md});
                        Q.push({md + 1, r});
                    }
                }
                int find_best(int n) {
                    N = n;
                    memset(A, -1, sizeof A);
                    init(); S = 0; solve(0, N - 1);
                    return res;
                }

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1872 KB Output is correct
2 Correct 4 ms 1744 KB Output is correct
3 Correct 3 ms 1908 KB Output is correct
4 Correct 3 ms 1832 KB Output is correct
5 Correct 5 ms 1836 KB Output is correct
6 Correct 5 ms 1956 KB Output is correct
7 Correct 8 ms 1744 KB Output is correct
8 Correct 4 ms 1832 KB Output is correct
9 Correct 5 ms 1744 KB Output is correct
10 Correct 6 ms 1872 KB Output is correct

Subtask #2
80.0 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 1832 KB Output is correct
2 Correct 5 ms 1872 KB Output is correct
3 Correct 4 ms 1872 KB Output is correct
4 Correct 5 ms 1832 KB Output is correct
5 Correct 3 ms 1876 KB Output is correct
6 Correct 5 ms 1836 KB Output is correct
7 Correct 6 ms 1744 KB Output is correct
8 Correct 6 ms 1836 KB Output is correct
9 Correct 3 ms 1872 KB Output is correct
10 Correct 6 ms 1868 KB Output is correct
11 Correct 7 ms 1872 KB Output is correct
12 Correct 3 ms 1904 KB Output is correct
13 Correct 6 ms 1860 KB Output is correct
14 Correct 7 ms 1744 KB Output is correct
15 Correct 11 ms 1744 KB Output is correct
16 Correct 31 ms 1836 KB Output is correct
17 Correct 4 ms 1824 KB Output is correct
18 Correct 51 ms 1744 KB Output is correct
19 Correct 5 ms 1840 KB Output is correct
20 Correct 24 ms 1880 KB Output is correct
21 Correct 18 ms 1736 KB Output is correct
22 Correct 8 ms 1824 KB Output is correct
23 Correct 4 ms 1744 KB Output is correct
24 Correct 5 ms 1872 KB Output is correct
25 Correct 26 ms 1872 KB Output is correct
26 Correct 26 ms 1832 KB Output is correct
27 Correct 6 ms 1872 KB Output is correct
28 Correct 35 ms 1744 KB Output is correct
29 Correct 22 ms 1828 KB Output is correct
30 Correct 36 ms 1872 KB Output is correct
31 Correct 10 ms 1852 KB Output is correct
32 Correct 8 ms 1828 KB Output is correct
33 Correct 2 ms 1744 KB Output is correct
34 Correct 16 ms 1812 KB Output is correct
35 Correct 6 ms 1836 KB Output is correct
36 Correct 7 ms 1896 KB Output is correct
37 Correct 4 ms 1864 KB Output is correct
38 Correct 7 ms 1832 KB Output is correct
39 Correct 25 ms 1816 KB Output is correct
40 Correct 41 ms 1848 KB Output is correct
41 Correct 27 ms 1820 KB Output is correct
42 Correct 19 ms 1868 KB Output is correct
43 Correct 13 ms 1852 KB Output is correct
44 Correct 34 ms 1856 KB Output is correct
45 Correct 19 ms 1848 KB Output is correct
46 Correct 7 ms 1872 KB Output is correct
47 Correct 18 ms 1828 KB Output is correct
48 Correct 28 ms 1820 KB Output is correct
49 Correct 12 ms 1872 KB Output is correct
50 Correct 52 ms 1812 KB Output is correct
51 Correct 22 ms 1872 KB Output is correct
52 Correct 6 ms 1744 KB Output is correct
53 Correct 7 ms 1832 KB Output is correct
54 Correct 19 ms 1868 KB Output is correct
55 Correct 7 ms 1828 KB Output is correct
56 Correct 48 ms 1840 KB Output is correct
57 Correct 26 ms 1840 KB Output is correct
58 Correct 34 ms 1820 KB Output is correct
59 Correct 31 ms 1736 KB Output is correct
60 Correct 17 ms 1852 KB Output is correct
61 Correct 7 ms 1744 KB Output is correct
62 Correct 5 ms 1852 KB Output is correct
63 Correct 5 ms 1836 KB Output is correct
64 Correct 8 ms 1852 KB Output is correct
65 Correct 5 ms 1852 KB Output is correct
66 Correct 10 ms 1836 KB Output is correct
67 Correct 6 ms 1960 KB Output is correct
68 Correct 12 ms 1872 KB Output is correct
69 Correct 9 ms 1836 KB Output is correct
70 Correct 6 ms 1828 KB Output is correct
71 Correct 44 ms 1868 KB Output is correct
72 Correct 9 ms 1844 KB Output is correct
73 Correct 42 ms 1744 KB Output is correct
74 Correct 48 ms 1872 KB Output is correct
75 Correct 8 ms 1872 KB Output is correct
76 Correct 30 ms 1872 KB Output is correct
77 Correct 37 ms 1872 KB Output is correct
78 Correct 9 ms 1872 KB Output is correct
79 Correct 22 ms 1872 KB Output is correct
80 Correct 49 ms 1744 KB Output is correct
81 Correct 48 ms 1872 KB Output is correct
82 Correct 31 ms 1864 KB Output is correct
83 Correct 5 ms 1872 KB Output is correct
84 Correct 39 ms 1840 KB Output is correct
85 Correct 46 ms 1744 KB Output is correct
86 Correct 39 ms 1836 KB Output is correct
87 Correct 4 ms 1868 KB Output is correct
88 Correct 36 ms 1872 KB Output is correct
89 Correct 37 ms 1868 KB Output is correct
90 Correct 6 ms 1872 KB Output is correct
91 Correct 20 ms 1872 KB Output is correct
92 Correct 33 ms 1872 KB Output is correct
93 Correct 30 ms 1872 KB Output is correct
94 Correct 32 ms 1872 KB Output is correct
95 Correct 42 ms 1876 KB Output is correct
96 Correct 39 ms 1872 KB Output is correct
97 Correct 34 ms 1864 KB Output is correct