oj.uz

Submission #406116

# Submission time Handle Problem Language Result Execution time Memory
406116 2021-05-17T08:34:14 Z tqbfjotld A Difficult(y) Choice (BOI21_books) C++14
100 / 100
 3 ms 1024 KB 
#include "books.h"
#include <bits/stdc++.h>
#define int long long

using namespace std;
int cache[100005];
int n;
int query(int a){
    assert(a>=1 && a<=n);
    if (cache[a]!=-1) return cache[a];
    return cache[a] = skim(a);
}

int find_val(int a, int b, int c = 1, int d = n){
    if (query(c)>b) return -(c-1);
    if (query(c)>=a) return c;
    if (query(d)<a) return -d;
    if (query(d)<=b) return d;
    while (c+1<d){
        int mid = (c+d)/2;
        int t = query(mid);
        if (a<=t && t<=b) return mid;
        if (t<a) c = mid;
        else d = mid;
    }
    return -c;
}

void check_ans(vector<int32_t> t){
    int sum = 0;
    sort(t.begin(),t.end());
    for (int x = 1; x<t.size(); x++){
        assert(t[x-1]!=t[x]);
    }
}

void solve(int32_t N, int32_t K, long long A, int32_t S) {
    memset(cache,-1,sizeof(cache));
    n = N;

    int en = N;
    vector<int32_t> extr;
    for (int x = K-1; x>=0; x--){
        vector<int32_t> ans;
        for (int y = 0; y<x; y++){
            ans.push_back(y+1);
        }
        for (auto y : extr) ans.push_back(y);
        int sum = 0;
        for (auto x : ans){
            sum += query(x);
        }
        int res = find_val(A-sum,2*A-sum,x+1,en);
        if (res>0){
            ans.push_back(res);
            check_ans(ans);
            answer(ans);
            return;
        }
        en = -res-1;
        if (x>en){
            impossible();
            return;
        }
        extr.push_back(-res);
    }
    impossible();
}

Compilation message

books.cpp: In function 'void check_ans(std::vector<int>)':
books.cpp:32:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for (int x = 1; x<t.size(); x++){
      |                     ~^~~~~~~~~
books.cpp:30:9: warning: unused variable 'sum' [-Wunused-variable]
   30 |     int sum = 0;
      |         ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 980 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 1 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 2 ms 968 KB Output is correct
8 Correct 1 ms 1024 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 968 KB Output is correct
2 Correct 1 ms 1016 KB Output is correct
3 Correct 1 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 2 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct
10 Correct 2 ms 968 KB Output is correct
11 Correct 2 ms 968 KB Output is correct
12 Correct 1 ms 968 KB Output is correct
13 Correct 2 ms 968 KB Output is correct
14 Correct 1 ms 968 KB Output is correct
15 Correct 2 ms 968 KB Output is correct
16 Correct 2 ms 968 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 968 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 2 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 968 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 2 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct
10 Correct 1 ms 968 KB Output is correct
11 Correct 2 ms 968 KB Output is correct
12 Correct 1 ms 968 KB Output is correct
13 Correct 1 ms 968 KB Output is correct
14 Correct 1 ms 968 KB Output is correct
15 Correct 1 ms 968 KB Output is correct
16 Correct 1 ms 968 KB Output is correct
17 Correct 2 ms 968 KB Output is correct
18 Correct 2 ms 968 KB Output is correct
19 Correct 1 ms 968 KB Output is correct
20 Correct 1 ms 968 KB Output is correct
21 Correct 2 ms 968 KB Output is correct
22 Correct 1 ms 968 KB Output is correct
23 Correct 3 ms 968 KB Output is correct
24 Correct 2 ms 968 KB Output is correct
25 Correct 2 ms 968 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 968 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 2 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct
10 Correct 1 ms 968 KB Output is correct
11 Correct 2 ms 968 KB Output is correct
12 Correct 1 ms 968 KB Output is correct
13 Correct 1 ms 968 KB Output is correct
14 Correct 1 ms 968 KB Output is correct
15 Correct 1 ms 968 KB Output is correct
16 Correct 1 ms 968 KB Output is correct
17 Correct 2 ms 968 KB Output is correct
18 Correct 2 ms 968 KB Output is correct
19 Correct 1 ms 968 KB Output is correct
20 Correct 1 ms 968 KB Output is correct
21 Correct 2 ms 968 KB Output is correct
22 Correct 1 ms 968 KB Output is correct
23 Correct 3 ms 968 KB Output is correct
24 Correct 2 ms 968 KB Output is correct
25 Correct 2 ms 968 KB Output is correct
26 Correct 1 ms 968 KB Output is correct
27 Correct 1 ms 968 KB Output is correct
28 Correct 1 ms 968 KB Output is correct
29 Correct 1 ms 968 KB Output is correct
30 Correct 1 ms 968 KB Output is correct
31 Correct 1 ms 968 KB Output is correct
32 Correct 2 ms 1024 KB Output is correct
33 Correct 1 ms 968 KB Output is correct
34 Correct 2 ms 968 KB Output is correct
35 Correct 2 ms 968 KB Output is correct
36 Correct 2 ms 968 KB Output is correct
37 Correct 2 ms 968 KB Output is correct
38 Correct 1 ms 968 KB Output is correct
39 Correct 2 ms 968 KB Output is correct
40 Correct 2 ms 968 KB Output is correct
41 Correct 2 ms 968 KB Output is correct
42 Correct 2 ms 968 KB Output is correct
43 Correct 1 ms 968 KB Output is correct
44 Correct 2 ms 968 KB Output is correct
45 Correct 1 ms 968 KB Output is correct
46 Correct 2 ms 968 KB Output is correct
47 Correct 2 ms 968 KB Output is correct
48 Correct 2 ms 968 KB Output is correct
49 Correct 1 ms 968 KB Output is correct
50 Correct 2 ms 968 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 968 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 2 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct
10 Correct 1 ms 968 KB Output is correct
11 Correct 2 ms 968 KB Output is correct
12 Correct 1 ms 968 KB Output is correct
13 Correct 1 ms 968 KB Output is correct
14 Correct 1 ms 968 KB Output is correct
15 Correct 1 ms 968 KB Output is correct
16 Correct 1 ms 968 KB Output is correct
17 Correct 2 ms 968 KB Output is correct
18 Correct 2 ms 968 KB Output is correct
19 Correct 1 ms 968 KB Output is correct
20 Correct 1 ms 968 KB Output is correct
21 Correct 2 ms 968 KB Output is correct
22 Correct 1 ms 968 KB Output is correct
23 Correct 3 ms 968 KB Output is correct
24 Correct 2 ms 968 KB Output is correct
25 Correct 2 ms 968 KB Output is correct
26 Correct 1 ms 968 KB Output is correct
27 Correct 1 ms 968 KB Output is correct
28 Correct 1 ms 968 KB Output is correct
29 Correct 2 ms 968 KB Output is correct
30 Correct 2 ms 968 KB Output is correct
31 Correct 1 ms 968 KB Output is correct
32 Correct 1 ms 968 KB Output is correct
33 Correct 2 ms 968 KB Output is correct
34 Correct 1 ms 968 KB Output is correct
35 Correct 1 ms 968 KB Output is correct
36 Correct 2 ms 968 KB Output is correct
37 Correct 1 ms 968 KB Output is correct
38 Correct 1 ms 968 KB Output is correct
39 Correct 2 ms 968 KB Output is correct
40 Correct 2 ms 968 KB Output is correct
41 Correct 2 ms 968 KB Output is correct
42 Correct 2 ms 968 KB Output is correct
43 Correct 1 ms 968 KB Output is correct
44 Correct 2 ms 968 KB Output is correct
45 Correct 1 ms 968 KB Output is correct
46 Correct 2 ms 968 KB Output is correct
47 Correct 1 ms 968 KB Output is correct
48 Correct 2 ms 968 KB Output is correct
49 Correct 2 ms 968 KB Output is correct
50 Correct 1 ms 968 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 968 KB Output is correct
2 Correct 2 ms 968 KB Output is correct
3 Correct 2 ms 968 KB Output is correct
4 Correct 1 ms 968 KB Output is correct
5 Correct 1 ms 968 KB Output is correct
6 Correct 2 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 2 ms 968 KB Output is correct
9 Correct 2 ms 968 KB Output is correct
10 Correct 1 ms 968 KB Output is correct
11 Correct 2 ms 968 KB Output is correct
12 Correct 1 ms 968 KB Output is correct
13 Correct 1 ms 968 KB Output is correct
14 Correct 1 ms 968 KB Output is correct
15 Correct 1 ms 968 KB Output is correct
16 Correct 1 ms 968 KB Output is correct
17 Correct 2 ms 968 KB Output is correct
18 Correct 2 ms 968 KB Output is correct
19 Correct 1 ms 968 KB Output is correct
20 Correct 1 ms 968 KB Output is correct
21 Correct 2 ms 968 KB Output is correct
22 Correct 1 ms 968 KB Output is correct
23 Correct 3 ms 968 KB Output is correct
24 Correct 2 ms 968 KB Output is correct
25 Correct 2 ms 968 KB Output is correct
26 Correct 1 ms 968 KB Output is correct
27 Correct 1 ms 968 KB Output is correct
28 Correct 1 ms 968 KB Output is correct
29 Correct 1 ms 968 KB Output is correct
30 Correct 1 ms 968 KB Output is correct
31 Correct 1 ms 968 KB Output is correct
32 Correct 2 ms 1024 KB Output is correct
33 Correct 1 ms 968 KB Output is correct
34 Correct 2 ms 968 KB Output is correct
35 Correct 2 ms 968 KB Output is correct
36 Correct 2 ms 968 KB Output is correct
37 Correct 2 ms 968 KB Output is correct
38 Correct 1 ms 968 KB Output is correct
39 Correct 2 ms 968 KB Output is correct
40 Correct 2 ms 968 KB Output is correct
41 Correct 2 ms 968 KB Output is correct
42 Correct 2 ms 968 KB Output is correct
43 Correct 1 ms 968 KB Output is correct
44 Correct 2 ms 968 KB Output is correct
45 Correct 1 ms 968 KB Output is correct
46 Correct 2 ms 968 KB Output is correct
47 Correct 2 ms 968 KB Output is correct
48 Correct 2 ms 968 KB Output is correct
49 Correct 1 ms 968 KB Output is correct
50 Correct 2 ms 968 KB Output is correct
51 Correct 1 ms 968 KB Output is correct
52 Correct 1 ms 968 KB Output is correct
53 Correct 1 ms 968 KB Output is correct
54 Correct 2 ms 968 KB Output is correct
55 Correct 2 ms 968 KB Output is correct
56 Correct 1 ms 968 KB Output is correct
57 Correct 1 ms 968 KB Output is correct
58 Correct 2 ms 968 KB Output is correct
59 Correct 1 ms 968 KB Output is correct
60 Correct 1 ms 968 KB Output is correct
61 Correct 2 ms 968 KB Output is correct
62 Correct 1 ms 968 KB Output is correct
63 Correct 1 ms 968 KB Output is correct
64 Correct 2 ms 968 KB Output is correct
65 Correct 2 ms 968 KB Output is correct
66 Correct 2 ms 968 KB Output is correct
67 Correct 2 ms 968 KB Output is correct
68 Correct 1 ms 968 KB Output is correct
69 Correct 2 ms 968 KB Output is correct
70 Correct 1 ms 968 KB Output is correct
71 Correct 2 ms 968 KB Output is correct
72 Correct 1 ms 968 KB Output is correct
73 Correct 2 ms 968 KB Output is correct
74 Correct 2 ms 968 KB Output is correct
75 Correct 1 ms 968 KB Output is correct
76 Correct 1 ms 968 KB Output is correct
77 Correct 1 ms 968 KB Output is correct
78 Correct 1 ms 968 KB Output is correct
79 Correct 1 ms 968 KB Output is correct
80 Correct 1 ms 968 KB Output is correct
81 Correct 1 ms 968 KB Output is correct
82 Correct 1 ms 968 KB Output is correct
83 Correct 1 ms 968 KB Output is correct
84 Correct 1 ms 968 KB Output is correct
85 Correct 2 ms 968 KB Output is correct
86 Correct 1 ms 968 KB Output is correct
87 Correct 1 ms 968 KB Output is correct
88 Correct 1 ms 968 KB Output is correct
89 Correct 2 ms 968 KB Output is correct
90 Correct 2 ms 968 KB Output is correct
91 Correct 1 ms 968 KB Output is correct
92 Correct 1 ms 968 KB Output is correct
93 Correct 1 ms 968 KB Output is correct
94 Correct 2 ms 968 KB Output is correct
95 Correct 1 ms 968 KB Output is correct
96 Correct 1 ms 968 KB Output is correct
97 Correct 1 ms 968 KB Output is correct
98 Correct 1 ms 968 KB Output is correct
99 Correct 1 ms 968 KB Output is correct
100 Correct 1 ms 968 KB Output is correct
101 Correct 2 ms 968 KB Output is correct
102 Correct 2 ms 968 KB Output is correct
103 Correct 1 ms 968 KB Output is correct
104 Correct 1 ms 968 KB Output is correct
105 Correct 2 ms 968 KB Output is correct
106 Correct 1 ms 968 KB Output is correct
107 Correct 2 ms 968 KB Output is correct
108 Correct 1 ms 968 KB Output is correct
109 Correct 1 ms 968 KB Output is correct
110 Correct 1 ms 968 KB Output is correct
111 Correct 1 ms 968 KB Output is correct
112 Correct 1 ms 968 KB Output is correct
113 Correct 2 ms 968 KB Output is correct
114 Correct 2 ms 968 KB Output is correct
115 Correct 2 ms 968 KB Output is correct
116 Correct 3 ms 968 KB Output is correct
117 Correct 1 ms 968 KB Output is correct
118 Correct 2 ms 1024 KB Output is correct
119 Correct 2 ms 968 KB Output is correct
120 Correct 2 ms 968 KB Output is correct
121 Correct 2 ms 968 KB Output is correct
122 Correct 2 ms 968 KB Output is correct
123 Correct 2 ms 968 KB Output is correct
124 Correct 2 ms 968 KB Output is correct
125 Correct 2 ms 968 KB Output is correct
126 Correct 2 ms 968 KB Output is correct
127 Correct 2 ms 968 KB Output is correct
128 Correct 2 ms 968 KB Output is correct
129 Correct 1 ms 968 KB Output is correct
130 Correct 2 ms 968 KB Output is correct
131 Correct 2 ms 968 KB Output is correct
132 Correct 2 ms 968 KB Output is correct
133 Correct 1 ms 968 KB Output is correct
134 Correct 2 ms 968 KB Output is correct
135 Correct 2 ms 968 KB Output is correct