Submission #619183

# Submission time Handle Problem Language Result Execution time Memory
619183 2022-08-02T10:26:56 Z SlavicG The Big Prize (IOI17_prize) C++17
90 / 100
85 ms 1268 KB
#include "prize.h"
#include "bits/stdc++.h"
using namespace std;

map<int, vector<int>> mp;
int ans = -1;
vector<int> query(int i) {
    if(mp.count(i)) return mp[i];
    vector<int> paiu = ask(i);
    mp[i] = paiu;
    if(paiu[0] + paiu[1] == 0) ans = i;
    return paiu;
}

void rec(int l, int r) {
    if(ans != -1) return;
    if(l >= r) return;
    if(ans != -1) return;
    if(query(r)[0] == query(l)[0] && query(r)[1] == query(l)[1]) return;
    if(ans != -1) return;
    int mid = l + r >> 1;
    if(query(mid)[0] + query(mid)[1] == 0) {
        ans = mid;
        return;
    }
    if(ans != -1) return;
    rec(l, mid);
    if(ans != -1) return;
    rec(mid + 1, r);
    if(ans != -1) return;
}

int find_best(int n) {
    ans = -1;
    mp.clear();
    rec(0, n - 1);
    return ans;
}

Compilation message

prize.cpp: In function 'void rec(int, int)':
prize.cpp:21:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |     int mid = l + r >> 1;
      |               ~~^~~
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 1 ms 292 KB Output is correct
3 Correct 1 ms 300 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 1 ms 288 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 292 KB Output is correct
9 Correct 1 ms 288 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 0 ms 292 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 0 ms 288 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 292 KB Output is correct
10 Correct 1 ms 208 KB Output is correct
11 Correct 5 ms 284 KB Output is correct
12 Correct 1 ms 292 KB Output is correct
13 Correct 9 ms 348 KB Output is correct
14 Correct 3 ms 208 KB Output is correct
15 Correct 12 ms 464 KB Output is correct
16 Partially correct 34 ms 1000 KB Partially correct - number of queries: 6733
17 Correct 1 ms 208 KB Output is correct
18 Partially correct 67 ms 1268 KB Partially correct - number of queries: 8132
19 Correct 1 ms 208 KB Output is correct
20 Correct 16 ms 456 KB Output is correct
21 Correct 14 ms 600 KB Output is correct
22 Correct 6 ms 292 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 1 ms 208 KB Output is correct
25 Correct 36 ms 616 KB Output is correct
26 Correct 28 ms 664 KB Output is correct
27 Correct 1 ms 292 KB Output is correct
28 Partially correct 61 ms 968 KB Partially correct - number of queries: 6947
29 Partially correct 51 ms 792 KB Partially correct - number of queries: 5415
30 Partially correct 64 ms 1152 KB Partially correct - number of queries: 8071
31 Correct 1 ms 292 KB Output is correct
32 Correct 7 ms 336 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 21 ms 524 KB Output is correct
35 Correct 2 ms 288 KB Output is correct
36 Correct 16 ms 444 KB Output is correct
37 Correct 2 ms 208 KB Output is correct
38 Correct 1 ms 292 KB Output is correct
39 Correct 30 ms 616 KB Output is correct
40 Partially correct 59 ms 1108 KB Partially correct - number of queries: 7041
41 Correct 37 ms 712 KB Output is correct
42 Correct 22 ms 836 KB Output is correct
43 Correct 29 ms 780 KB Output is correct
44 Correct 16 ms 588 KB Output is correct
45 Correct 16 ms 512 KB Output is correct
46 Correct 1 ms 208 KB Output is correct
47 Correct 37 ms 576 KB Output is correct
48 Partially correct 55 ms 988 KB Partially correct - number of queries: 5788
49 Correct 3 ms 348 KB Output is correct
50 Partially correct 43 ms 1228 KB Partially correct - number of queries: 8123
51 Correct 16 ms 640 KB Output is correct
52 Correct 2 ms 288 KB Output is correct
53 Correct 2 ms 208 KB Output is correct
54 Correct 17 ms 644 KB Output is correct
55 Correct 1 ms 208 KB Output is correct
56 Partially correct 82 ms 1096 KB Partially correct - number of queries: 8127
57 Partially correct 50 ms 808 KB Partially correct - number of queries: 5705
58 Partially correct 52 ms 820 KB Partially correct - number of queries: 5802
59 Correct 50 ms 668 KB Output is correct
60 Correct 38 ms 740 KB Output is correct
61 Correct 2 ms 296 KB Output is correct
62 Correct 1 ms 304 KB Output is correct
63 Correct 1 ms 208 KB Output is correct
64 Correct 2 ms 280 KB Output is correct
65 Correct 1 ms 288 KB Output is correct
66 Correct 1 ms 288 KB Output is correct
67 Correct 1 ms 288 KB Output is correct
68 Correct 0 ms 292 KB Output is correct
69 Correct 1 ms 208 KB Output is correct
70 Correct 1 ms 208 KB Output is correct
71 Partially correct 82 ms 1096 KB Partially correct - number of queries: 8104
72 Correct 8 ms 344 KB Output is correct
73 Partially correct 83 ms 1112 KB Partially correct - number of queries: 7999
74 Partially correct 69 ms 1096 KB Partially correct - number of queries: 8044
75 Correct 2 ms 208 KB Output is correct
76 Partially correct 58 ms 992 KB Partially correct - number of queries: 7024
77 Partially correct 67 ms 1132 KB Partially correct - number of queries: 8114
78 Correct 10 ms 368 KB Output is correct
79 Correct 44 ms 632 KB Output is correct
80 Partially correct 45 ms 1160 KB Partially correct - number of queries: 8110
81 Partially correct 85 ms 1156 KB Partially correct - number of queries: 8110
82 Partially correct 41 ms 1052 KB Partially correct - number of queries: 8036
83 Correct 3 ms 208 KB Output is correct
84 Partially correct 76 ms 912 KB Partially correct - number of queries: 6790
85 Partially correct 76 ms 1116 KB Partially correct - number of queries: 8107
86 Correct 12 ms 336 KB Output is correct
87 Correct 5 ms 336 KB Output is correct
88 Correct 13 ms 412 KB Output is correct
89 Correct 10 ms 420 KB Output is correct
90 Correct 2 ms 208 KB Output is correct
91 Correct 6 ms 336 KB Output is correct
92 Correct 1 ms 208 KB Output is correct
93 Correct 8 ms 348 KB Output is correct
94 Correct 5 ms 364 KB Output is correct
95 Correct 10 ms 336 KB Output is correct
96 Correct 6 ms 368 KB Output is correct
97 Correct 1 ms 208 KB Output is correct