oj.uz

Submission #1118444

# Submission time Handle Problem Language Result Execution time Memory
1118444 2024-11-25T13:48:28 Z adaawf The Big Prize (IOI17_prize) C++17
98.07 / 100
 97 ms 3000 KB 
#include <bits/stdc++.h>
using namespace std;
int a[200005], cc = 0, hh = 200000, dd[200005], c[200005][10];
void build(int n) {
    for (int j = 0; j <= 9; j++) {
        c[0][j] = (a[0] <= j);
        for (int i = 1; i < n; i++) {
            c[i][j] = c[i - 1][j] + (a[i] <= j);
        }
    }
}
mt19937 mt(chrono::steady_clock::now().time_since_epoch().count());
vector<int> ask(int i);
int find_best(int n) {
    vector<pair<int, pair<int, int>>> v;
    vector<int> t;
    int mi = 0;
    for (int i = 0; i < 475; i++) {
        t = ask(i);
        if (t[0] + t[1] == 0) return i;
        mi = max(mi, t[0] + t[1]);
    }
    for (int i = 0; i < n; i++) dd[i] = 0;
    int c = 0;
    for (int i = 0; i < n; i += 425) {
        while (1) {
            if (i >= n) break;
            t = ask(i);
            if (t[0] + t[1] == 0) return i;
            if (t[0] + t[1] == mi) {
                break;
            }
            c++;
            i++;
        }
        if (i < n) {
            v.push_back({i, {t[1], c}});
            c = 0;
        }
    }
    v.push_back({n, {0, c}});
    for (int i = 0; i < v.size() - 1; i++) {
        int h = v[i].second.first - v[i + 1].second.first;
        h -= v[i + 1].second.second;
        vector<int> va, vc, vv;
        for (int j = v[i].first; j < min(v[i].first + 425, n + 1); j++) {
            va.push_back(j);
        }
        for (int j = 0; j < h; j++) {
            int l = 0, r = va.size() - 1, res;
            while (1) {
                int mid = (l + r) / 2;
                res = va[mid];
                dd[va[mid]] = 1;
                t = ask(va[mid]);
                if (t[0] + t[1] == 0) return va[mid];
                if (t[0] + t[1] != mi) break;
                for (int w : vc) {
                    if (w <= va[mid]) t[1]++;
                }
                if (t[1] == v[i].second.first) {
                    l = mid + 1;
                }
                else r = mid - 1;
            }
            vc.push_back(res);
            vv.clear();
            for (int w : va) {
                if (dd[w] == 0) vv.push_back(w);
            }
            va = vv;
        }
    }
    return -1;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:42:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |     for (int i = 0; i < v.size() - 1; i++) {
      |                     ~~^~~~~~~~~~~~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 3000 KB Output is correct
2 Correct 18 ms 2768 KB Output is correct
3 Correct 19 ms 1228 KB Output is correct
4 Correct 14 ms 1368 KB Output is correct
5 Correct 17 ms 1260 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 18 ms 1372 KB Output is correct
8 Correct 17 ms 1488 KB Output is correct
9 Correct 16 ms 1232 KB Output is correct
10 Correct 18 ms 1228 KB Output is correct

Subtask #2
78.07 / 80.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 1268 KB Output is correct
2 Correct 11 ms 2760 KB Output is correct
3 Correct 8 ms 2760 KB Output is correct
4 Correct 14 ms 2996 KB Output is correct
5 Correct 14 ms 2496 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 7 ms 1412 KB Output is correct
8 Correct 17 ms 1252 KB Output is correct
9 Correct 15 ms 1224 KB Output is correct
10 Correct 17 ms 2736 KB Output is correct
11 Correct 18 ms 1256 KB Output is correct
12 Correct 18 ms 1496 KB Output is correct
13 Correct 9 ms 1416 KB Output is correct
14 Correct 6 ms 604 KB Output is correct
15 Correct 19 ms 1500 KB Output is correct
16 Correct 40 ms 1264 KB Output is correct
17 Correct 8 ms 348 KB Output is correct
18 Correct 72 ms 2748 KB Output is correct
19 Correct 9 ms 336 KB Output is correct
20 Correct 23 ms 2756 KB Output is correct
21 Correct 40 ms 1472 KB Output is correct
22 Correct 20 ms 2988 KB Output is correct
23 Correct 17 ms 1244 KB Output is correct
24 Correct 17 ms 1220 KB Output is correct
25 Correct 56 ms 1388 KB Output is correct
26 Correct 47 ms 1104 KB Output is correct
27 Correct 13 ms 1104 KB Output is correct
28 Correct 80 ms 1216 KB Output is correct
29 Correct 62 ms 2640 KB Output is correct
30 Correct 53 ms 2752 KB Output is correct
31 Correct 8 ms 336 KB Output is correct
32 Correct 19 ms 2740 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 29 ms 1220 KB Output is correct
35 Correct 15 ms 1220 KB Output is correct
36 Correct 31 ms 1360 KB Output is correct
37 Correct 21 ms 1104 KB Output is correct
38 Correct 16 ms 1104 KB Output is correct
39 Correct 19 ms 1104 KB Output is correct
40 Correct 59 ms 1244 KB Output is correct
41 Correct 45 ms 2640 KB Output is correct
42 Correct 34 ms 2748 KB Output is correct
43 Correct 54 ms 2744 KB Output is correct
44 Correct 39 ms 1476 KB Output is correct
45 Correct 37 ms 1216 KB Output is correct
46 Correct 8 ms 336 KB Output is correct
47 Correct 44 ms 1360 KB Output is correct
48 Correct 63 ms 1240 KB Output is correct
49 Correct 26 ms 1468 KB Output is correct
50 Correct 82 ms 1464 KB Output is correct
51 Correct 39 ms 2988 KB Output is correct
52 Correct 20 ms 2744 KB Output is correct
53 Correct 21 ms 2736 KB Output is correct
54 Correct 39 ms 2496 KB Output is correct
55 Correct 8 ms 336 KB Output is correct
56 Correct 76 ms 1244 KB Output is correct
57 Correct 59 ms 1720 KB Output is correct
58 Correct 60 ms 1360 KB Output is correct
59 Correct 59 ms 1360 KB Output is correct
60 Correct 12 ms 1232 KB Output is correct
61 Correct 19 ms 1352 KB Output is correct
62 Correct 17 ms 2504 KB Output is correct
63 Correct 19 ms 2640 KB Output is correct
64 Correct 13 ms 2992 KB Output is correct
65 Correct 15 ms 1244 KB Output is correct
66 Correct 22 ms 2744 KB Output is correct
67 Correct 17 ms 1244 KB Output is correct
68 Correct 9 ms 336 KB Output is correct
69 Correct 17 ms 1480 KB Output is correct
70 Correct 24 ms 1352 KB Output is correct
71 Partially correct 93 ms 1360 KB Partially correct - number of queries: 5193
72 Correct 23 ms 1244 KB Output is correct
73 Partially correct 97 ms 1480 KB Partially correct - number of queries: 5131
74 Partially correct 84 ms 2640 KB Partially correct - number of queries: 5158
75 Correct 20 ms 2740 KB Output is correct
76 Correct 91 ms 1476 KB Output is correct
77 Correct 86 ms 1384 KB Output is correct
78 Correct 24 ms 1360 KB Output is correct
79 Correct 48 ms 1360 KB Output is correct
80 Correct 87 ms 1220 KB Output is correct
81 Correct 83 ms 2884 KB Output is correct
82 Correct 77 ms 2744 KB Output is correct
83 Correct 17 ms 2896 KB Output is correct
84 Correct 54 ms 1220 KB Output is correct
85 Correct 82 ms 1360 KB Output is correct
86 Correct 25 ms 1240 KB Output is correct
87 Correct 16 ms 1220 KB Output is correct
88 Correct 21 ms 1464 KB Output is correct
89 Correct 24 ms 1384 KB Output is correct
90 Correct 14 ms 2504 KB Output is correct
91 Correct 17 ms 2744 KB Output is correct
92 Correct 21 ms 2728 KB Output is correct
93 Correct 28 ms 2988 KB Output is correct
94 Correct 26 ms 1096 KB Output is correct
95 Correct 25 ms 1388 KB Output is correct
96 Correct 24 ms 1360 KB Output is correct
97 Correct 24 ms 1476 KB Output is correct