답안 #1030998

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1030998 2024-07-22T13:23:14 Z coolboy19521 커다란 상품 (IOI17_prize) C++17
90 / 100
40 ms 5956 KB
#include "prize.h"
#include "iostream"
 
using namespace std;

const int sz = 2e5 + 10;

vector<int> bf[sz];

vector<int> Ask(int x) {
    if (bf[x].size()) return bf[x];
    return bf[x] = ask(x);
}
 
int find_best(int n) {
    int mx = 0, xx = 600;
    for (int i = 0; i < min(n, 600); i ++) {
        auto pr = Ask(i);
        mx = max(mx, pr[0] + pr[1]);
        if (0 == pr[0] + pr[1]) return i;
        if (30 < mx) {
            xx = i + 1;
            break;
        }
    }
    int ls = xx;
    while (ls < n) {
        int ps;
        for (; ls < n; ls ++) {
            auto pr = Ask(ls);
            int sm = pr[0] + pr[1];
            if (0 == sm) return ls;
            if (sm == mx) {
                ps = pr[1];
                break;
            }
        }
        int ds = xx;
        int rs = min(ls + 50000, n);
        while (1 < rs - ds) {
            int mi = (ds + rs) / 2;
            if (mi <= ls) {
                ds = mi;
                continue;
            }
            auto pr = Ask(mi);
            int sm = pr[0] + pr[1];
            if (0 == sm) return mi;
            if (sm != mx) rs = mi;
            if (0 == ps - pr[1]) ds = mi;
            else rs = mi;
        }
        ls = ds + 1;
    }
    return 0;
}

Compilation message

prize.cpp: In function 'int find_best(int)':
prize.cpp:50:13: warning: 'ps' may be used uninitialized in this function [-Wmaybe-uninitialized]
   50 |             if (0 == ps - pr[1]) ds = mi;
      |             ^~
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4952 KB Output is correct
2 Correct 6 ms 5388 KB Output is correct
3 Correct 6 ms 4952 KB Output is correct
4 Correct 6 ms 4952 KB Output is correct
5 Correct 7 ms 5132 KB Output is correct
6 Correct 3 ms 5128 KB Output is correct
7 Correct 6 ms 5140 KB Output is correct
8 Correct 6 ms 5384 KB Output is correct
9 Correct 6 ms 4952 KB Output is correct
10 Correct 6 ms 5148 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 4952 KB Output is correct
2 Correct 6 ms 4952 KB Output is correct
3 Correct 6 ms 5148 KB Output is correct
4 Correct 7 ms 5144 KB Output is correct
5 Correct 5 ms 4952 KB Output is correct
6 Correct 3 ms 4952 KB Output is correct
7 Correct 7 ms 4952 KB Output is correct
8 Correct 5 ms 4952 KB Output is correct
9 Correct 5 ms 4952 KB Output is correct
10 Correct 5 ms 5140 KB Output is correct
11 Correct 4 ms 5124 KB Output is correct
12 Correct 3 ms 4952 KB Output is correct
13 Correct 5 ms 4952 KB Output is correct
14 Correct 3 ms 5024 KB Output is correct
15 Correct 7 ms 4952 KB Output is correct
16 Partially correct 39 ms 5708 KB Partially correct - number of queries: 5399
17 Correct 3 ms 4952 KB Output is correct
18 Partially correct 39 ms 5424 KB Partially correct - number of queries: 6215
19 Correct 4 ms 4952 KB Output is correct
20 Correct 15 ms 5204 KB Output is correct
21 Correct 13 ms 4952 KB Output is correct
22 Correct 5 ms 4952 KB Output is correct
23 Correct 7 ms 4952 KB Output is correct
24 Correct 3 ms 4952 KB Output is correct
25 Correct 19 ms 5464 KB Output is correct
26 Correct 27 ms 5468 KB Output is correct
27 Correct 5 ms 5396 KB Output is correct
28 Partially correct 29 ms 5424 KB Partially correct - number of queries: 5659
29 Correct 24 ms 5404 KB Output is correct
30 Partially correct 27 ms 5148 KB Partially correct - number of queries: 6206
31 Correct 2 ms 4952 KB Output is correct
32 Correct 4 ms 4952 KB Output is correct
33 Correct 2 ms 4952 KB Output is correct
34 Correct 11 ms 5128 KB Output is correct
35 Correct 7 ms 5208 KB Output is correct
36 Correct 7 ms 5164 KB Output is correct
37 Correct 3 ms 5208 KB Output is correct
38 Correct 6 ms 5208 KB Output is correct
39 Correct 13 ms 5956 KB Output is correct
40 Partially correct 25 ms 5208 KB Partially correct - number of queries: 5323
41 Correct 19 ms 5200 KB Output is correct
42 Correct 17 ms 5216 KB Output is correct
43 Correct 13 ms 5200 KB Output is correct
44 Correct 22 ms 5156 KB Output is correct
45 Correct 12 ms 5160 KB Output is correct
46 Correct 2 ms 4952 KB Output is correct
47 Correct 15 ms 5208 KB Output is correct
48 Correct 19 ms 5480 KB Output is correct
49 Correct 4 ms 4952 KB Output is correct
50 Partially correct 31 ms 5456 KB Partially correct - number of queries: 6242
51 Correct 16 ms 5376 KB Output is correct
52 Correct 2 ms 4952 KB Output is correct
53 Correct 6 ms 5208 KB Output is correct
54 Correct 13 ms 5208 KB Output is correct
55 Correct 2 ms 4952 KB Output is correct
56 Partially correct 31 ms 5504 KB Partially correct - number of queries: 6247
57 Correct 29 ms 5232 KB Output is correct
58 Correct 23 ms 5416 KB Output is correct
59 Correct 17 ms 5200 KB Output is correct
60 Correct 24 ms 5192 KB Output is correct
61 Correct 7 ms 4952 KB Output is correct
62 Correct 6 ms 4952 KB Output is correct
63 Correct 5 ms 4952 KB Output is correct
64 Correct 5 ms 4952 KB Output is correct
65 Correct 3 ms 4952 KB Output is correct
66 Correct 5 ms 5208 KB Output is correct
67 Correct 3 ms 4952 KB Output is correct
68 Correct 4 ms 4952 KB Output is correct
69 Correct 4 ms 4952 KB Output is correct
70 Correct 3 ms 5208 KB Output is correct
71 Partially correct 38 ms 5208 KB Partially correct - number of queries: 6090
72 Correct 5 ms 5208 KB Output is correct
73 Partially correct 21 ms 5412 KB Partially correct - number of queries: 6023
74 Partially correct 35 ms 5156 KB Partially correct - number of queries: 6070
75 Correct 6 ms 5208 KB Output is correct
76 Partially correct 35 ms 5484 KB Partially correct - number of queries: 5282
77 Partially correct 29 ms 5804 KB Partially correct - number of queries: 6303
78 Correct 5 ms 4952 KB Output is correct
79 Correct 22 ms 5200 KB Output is correct
80 Partially correct 38 ms 5208 KB Partially correct - number of queries: 6260
81 Partially correct 40 ms 5208 KB Partially correct - number of queries: 6278
82 Partially correct 38 ms 5184 KB Partially correct - number of queries: 6232
83 Correct 6 ms 5144 KB Output is correct
84 Partially correct 30 ms 5420 KB Partially correct - number of queries: 5196
85 Partially correct 36 ms 5200 KB Partially correct - number of queries: 6288
86 Correct 4 ms 4952 KB Output is correct
87 Correct 3 ms 4952 KB Output is correct
88 Correct 5 ms 4952 KB Output is correct
89 Correct 7 ms 4952 KB Output is correct
90 Correct 5 ms 4952 KB Output is correct
91 Correct 4 ms 5208 KB Output is correct
92 Correct 5 ms 4952 KB Output is correct
93 Correct 7 ms 5148 KB Output is correct
94 Correct 5 ms 5204 KB Output is correct
95 Correct 6 ms 4952 KB Output is correct
96 Correct 6 ms 5144 KB Output is correct
97 Correct 4 ms 4952 KB Output is correct