oj.uz

Submission #773355

# Submission time Handle Problem Language Result Execution time Memory
773355 2023-07-05T00:51:51 Z rxlfd314 A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 1 ms 1064 KB 
#include <bits/stdc++.h>
#include "books.h"
using namespace std;
using ll = long long;

void solve(int N, int K, ll A, int S) {
	ll a[N+1];
	memset(a, -1, sizeof(a));
	
	auto ask = [&](int i) {
		return a[i] = a[i] < 0 ? skim(i) : a[i];
	};
	
	ll sum = 0;
	for (int i = 1; i < K; i++) {
		sum += ask(i);
	}
	
	if (sum >= A) {
		if (sum + ask(K) > A+A) {
			impossible();
		}
		vector<int> ans(K);
		iota(ans.begin(), ans.end(), 1);
		answer(ans);
	}
	
	int lo = K, hi = N+1;
	while (lo < hi) {
		int mid = lo + hi >> 1;
		ask(mid) + sum < A ? lo = mid + 1 : hi = mid;
	}
	if (lo <= N && ask(lo) + sum <= A+A) {
		vector<int> ans(K);
		iota(ans.begin(), ans.end(), 1);
		ans[K-1] = lo;
		answer(ans);
	}
	if (lo-- == K) {
		impossible();
	}
	
	vector<int> lft(K-1), rht = {lo};
	sum += ask(lo);
	iota(lft.begin(), lft.end(), 1);
	reverse(lft.begin(), lft.end());
	for (int i = lo-1; i > max(K-1, lo-K) && sum < A; i--) {
		sum += ask(i) - ask(lft.back());
		lft.pop_back();
		rht.push_back(i);
	}
	
	if (sum < A) {
		impossible();
	}
	for (int i : rht) {
		lft.push_back(i);
	}
	answer(lft);
}

Compilation message

books.cpp: In function 'void solve(int, int, ll, int)':
books.cpp:30:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   30 |   int mid = lo + hi >> 1;
      |             ~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 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 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 0 ms 208 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 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 1 ms 464 KB Output is correct
10 Correct 1 ms 464 KB Output is correct
11 Correct 1 ms 464 KB Output is correct
12 Correct 1 ms 464 KB Output is correct
13 Correct 1 ms 464 KB Output is correct
14 Correct 1 ms 464 KB Output is correct
15 Correct 1 ms 464 KB Output is correct
16 Correct 1 ms 464 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1064 KB Output is correct
11 Correct 1 ms 1060 KB Output is correct
12 Correct 1 ms 976 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 ms 1064 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 988 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 1056 KB Output is correct
24 Correct 1 ms 976 KB Output is correct
25 Correct 1 ms 976 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1064 KB Output is correct
11 Correct 1 ms 1060 KB Output is correct
12 Correct 1 ms 976 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 ms 1064 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 988 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 1056 KB Output is correct
24 Correct 1 ms 976 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 976 KB Output is correct
28 Correct 1 ms 976 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 976 KB Output is correct
31 Correct 1 ms 1056 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 1056 KB Output is correct
34 Correct 1 ms 1060 KB Output is correct
35 Correct 1 ms 1060 KB Output is correct
36 Correct 1 ms 976 KB Output is correct
37 Correct 1 ms 1024 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 976 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 1060 KB Output is correct
43 Correct 1 ms 1060 KB Output is correct
44 Correct 1 ms 976 KB Output is correct
45 Correct 1 ms 1060 KB Output is correct
46 Correct 1 ms 976 KB Output is correct
47 Correct 1 ms 976 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 1 ms 976 KB Output is correct
50 Correct 1 ms 976 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1064 KB Output is correct
11 Correct 1 ms 1060 KB Output is correct
12 Correct 1 ms 976 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 ms 1064 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 988 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 1056 KB Output is correct
24 Correct 1 ms 976 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 1056 KB Output is correct
28 Correct 1 ms 976 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 1056 KB Output is correct
31 Correct 1 ms 1064 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 1056 KB Output is correct
34 Correct 1 ms 976 KB Output is correct
35 Correct 1 ms 976 KB Output is correct
36 Correct 1 ms 1060 KB Output is correct
37 Correct 1 ms 1064 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 1064 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 976 KB Output is correct
43 Correct 1 ms 1060 KB Output is correct
44 Correct 1 ms 976 KB Output is correct
45 Correct 1 ms 1060 KB Output is correct
46 Correct 1 ms 1056 KB Output is correct
47 Correct 1 ms 1060 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 1 ms 976 KB Output is correct
50 Correct 1 ms 976 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 976 KB Output is correct
2 Correct 1 ms 976 KB Output is correct
3 Correct 1 ms 976 KB Output is correct
4 Correct 1 ms 976 KB Output is correct
5 Correct 1 ms 976 KB Output is correct
6 Correct 1 ms 976 KB Output is correct
7 Correct 1 ms 976 KB Output is correct
8 Correct 1 ms 976 KB Output is correct
9 Correct 1 ms 976 KB Output is correct
10 Correct 1 ms 1064 KB Output is correct
11 Correct 1 ms 1060 KB Output is correct
12 Correct 1 ms 976 KB Output is correct
13 Correct 1 ms 976 KB Output is correct
14 Correct 1 ms 976 KB Output is correct
15 Correct 1 ms 976 KB Output is correct
16 Correct 1 ms 976 KB Output is correct
17 Correct 1 ms 1064 KB Output is correct
18 Correct 1 ms 976 KB Output is correct
19 Correct 1 ms 976 KB Output is correct
20 Correct 1 ms 988 KB Output is correct
21 Correct 1 ms 976 KB Output is correct
22 Correct 1 ms 976 KB Output is correct
23 Correct 1 ms 1056 KB Output is correct
24 Correct 1 ms 976 KB Output is correct
25 Correct 1 ms 976 KB Output is correct
26 Correct 1 ms 976 KB Output is correct
27 Correct 1 ms 976 KB Output is correct
28 Correct 1 ms 976 KB Output is correct
29 Correct 1 ms 976 KB Output is correct
30 Correct 1 ms 976 KB Output is correct
31 Correct 1 ms 1056 KB Output is correct
32 Correct 1 ms 976 KB Output is correct
33 Correct 1 ms 1056 KB Output is correct
34 Correct 1 ms 1060 KB Output is correct
35 Correct 1 ms 1060 KB Output is correct
36 Correct 1 ms 976 KB Output is correct
37 Correct 1 ms 1024 KB Output is correct
38 Correct 1 ms 976 KB Output is correct
39 Correct 1 ms 976 KB Output is correct
40 Correct 1 ms 976 KB Output is correct
41 Correct 1 ms 976 KB Output is correct
42 Correct 1 ms 1060 KB Output is correct
43 Correct 1 ms 1060 KB Output is correct
44 Correct 1 ms 976 KB Output is correct
45 Correct 1 ms 1060 KB Output is correct
46 Correct 1 ms 976 KB Output is correct
47 Correct 1 ms 976 KB Output is correct
48 Correct 1 ms 976 KB Output is correct
49 Correct 1 ms 976 KB Output is correct
50 Correct 1 ms 976 KB Output is correct
51 Correct 1 ms 976 KB Output is correct
52 Correct 1 ms 1056 KB Output is correct
53 Correct 1 ms 976 KB Output is correct
54 Correct 1 ms 976 KB Output is correct
55 Correct 1 ms 1056 KB Output is correct
56 Correct 1 ms 1064 KB Output is correct
57 Correct 1 ms 976 KB Output is correct
58 Correct 1 ms 1056 KB Output is correct
59 Correct 1 ms 976 KB Output is correct
60 Correct 1 ms 976 KB Output is correct
61 Correct 1 ms 1060 KB Output is correct
62 Correct 1 ms 1064 KB Output is correct
63 Correct 1 ms 976 KB Output is correct
64 Correct 1 ms 976 KB Output is correct
65 Correct 1 ms 1064 KB Output is correct
66 Correct 1 ms 976 KB Output is correct
67 Correct 1 ms 976 KB Output is correct
68 Correct 1 ms 1060 KB Output is correct
69 Correct 1 ms 976 KB Output is correct
70 Correct 1 ms 1060 KB Output is correct
71 Correct 1 ms 1056 KB Output is correct
72 Correct 1 ms 1060 KB Output is correct
73 Correct 1 ms 976 KB Output is correct
74 Correct 1 ms 976 KB Output is correct
75 Correct 1 ms 976 KB Output is correct
76 Correct 0 ms 208 KB Output is correct
77 Correct 1 ms 208 KB Output is correct
78 Correct 0 ms 208 KB Output is correct
79 Correct 1 ms 220 KB Output is correct
80 Correct 0 ms 208 KB Output is correct
81 Correct 0 ms 208 KB Output is correct
82 Correct 0 ms 208 KB Output is correct
83 Correct 1 ms 296 KB Output is correct
84 Correct 1 ms 464 KB Output is correct
85 Correct 1 ms 464 KB Output is correct
86 Correct 1 ms 464 KB Output is correct
87 Correct 1 ms 464 KB Output is correct
88 Correct 1 ms 420 KB Output is correct
89 Correct 0 ms 464 KB Output is correct
90 Correct 1 ms 464 KB Output is correct
91 Correct 1 ms 464 KB Output is correct
92 Correct 1 ms 1056 KB Output is correct
93 Correct 1 ms 976 KB Output is correct
94 Correct 1 ms 976 KB Output is correct
95 Correct 1 ms 976 KB Output is correct
96 Correct 1 ms 976 KB Output is correct
97 Correct 1 ms 1060 KB Output is correct
98 Correct 1 ms 1056 KB Output is correct
99 Correct 1 ms 1056 KB Output is correct
100 Correct 1 ms 976 KB Output is correct
101 Correct 1 ms 976 KB Output is correct
102 Correct 1 ms 976 KB Output is correct
103 Correct 1 ms 1056 KB Output is correct
104 Correct 1 ms 976 KB Output is correct
105 Correct 1 ms 976 KB Output is correct
106 Correct 1 ms 976 KB Output is correct
107 Correct 1 ms 976 KB Output is correct
108 Correct 1 ms 1064 KB Output is correct
109 Correct 1 ms 1060 KB Output is correct
110 Correct 1 ms 1060 KB Output is correct
111 Correct 1 ms 1060 KB Output is correct
112 Correct 1 ms 976 KB Output is correct
113 Correct 1 ms 976 KB Output is correct
114 Correct 1 ms 976 KB Output is correct
115 Correct 1 ms 976 KB Output is correct
116 Correct 1 ms 976 KB Output is correct
117 Correct 1 ms 1056 KB Output is correct
118 Correct 1 ms 976 KB Output is correct
119 Correct 1 ms 976 KB Output is correct
120 Correct 1 ms 976 KB Output is correct
121 Correct 1 ms 976 KB Output is correct
122 Correct 1 ms 976 KB Output is correct
123 Correct 1 ms 976 KB Output is correct
124 Correct 1 ms 976 KB Output is correct
125 Correct 1 ms 976 KB Output is correct
126 Correct 1 ms 976 KB Output is correct
127 Correct 1 ms 1064 KB Output is correct
128 Correct 1 ms 976 KB Output is correct
129 Correct 1 ms 1056 KB Output is correct
130 Correct 1 ms 1056 KB Output is correct
131 Correct 1 ms 976 KB Output is correct
132 Correct 1 ms 1060 KB Output is correct
133 Correct 1 ms 1060 KB Output is correct
134 Correct 1 ms 976 KB Output is correct
135 Correct 1 ms 976 KB Output is correct