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Submission #434970

# Submission time Handle Problem Language Result Execution time Memory
434970 2021-06-22T15:44:16 Z dqhungdl A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 2 ms 348 KB 
#include <bits/stdc++.h>

#include "books.h"

using namespace std;

long long cache[100005];

long long skimming(int id) {
	if(cache[id]!=0)
		return cache[id];
	return cache[id]=skim(id);
}

void solve(int N, int K, long long A, int S) {
	long long sum=0;
	for(int i=1;i<K;i++)
		sum+=skimming(i);
	if(sum>2*A)
		impossible();
	vector<int> rs;
	for(int i=1;i<K;i++)
		rs.push_back(i);
	int l=K,r=N,pivot=-1;
	while(l<=r) {
		int mid=(l+r)/2;
		if(A<=sum+skimming(mid)&&sum+skimming(mid)<=2*A) {
			rs.push_back(mid);
			answer(rs);
		}
		if(sum+skimming(mid)<A) {
			pivot=mid;
			l=mid+1;
		} else
			r=mid-1;
	}
	if(pivot==-1)
		impossible();
	int cnt=0;
	for(int i=rs.size()-1;i>=0;i--) {
		sum-=skimming(rs[i]);
		cnt++;
		sum+=skimming(pivot-cnt);
		rs[i]=pivot-cnt;
		if(A<=sum+skimming(pivot)&&sum+skimming(pivot)<=2*A) {
			rs.push_back(pivot);
			answer(rs);
		}
	}
	impossible();
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 284 KB Output is correct
8 Correct 1 ms 200 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 200 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 300 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 304 KB Output is correct
14 Correct 1 ms 304 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 200 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 296 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 1 ms 284 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 292 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 2 ms 304 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 280 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 1 ms 284 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 292 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 2 ms 304 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 280 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 284 KB Output is correct
28 Correct 2 ms 304 KB Output is correct
29 Correct 1 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 1 ms 200 KB Output is correct
33 Correct 1 ms 300 KB Output is correct
34 Correct 1 ms 288 KB Output is correct
35 Correct 1 ms 296 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 1 ms 200 KB Output is correct
38 Correct 1 ms 200 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 2 ms 304 KB Output is correct
41 Correct 1 ms 200 KB Output is correct
42 Correct 1 ms 296 KB Output is correct
43 Correct 1 ms 200 KB Output is correct
44 Correct 2 ms 200 KB Output is correct
45 Correct 1 ms 200 KB Output is correct
46 Correct 1 ms 284 KB Output is correct
47 Correct 1 ms 292 KB Output is correct
48 Correct 1 ms 200 KB Output is correct
49 Correct 1 ms 300 KB Output is correct
50 Correct 1 ms 200 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 1 ms 284 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 292 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 2 ms 304 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 280 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 296 KB Output is correct
28 Correct 2 ms 292 KB Output is correct
29 Correct 1 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 1 ms 200 KB Output is correct
33 Correct 1 ms 200 KB Output is correct
34 Correct 2 ms 296 KB Output is correct
35 Correct 1 ms 300 KB Output is correct
36 Correct 1 ms 200 KB Output is correct
37 Correct 1 ms 200 KB Output is correct
38 Correct 1 ms 200 KB Output is correct
39 Correct 1 ms 292 KB Output is correct
40 Correct 1 ms 280 KB Output is correct
41 Correct 1 ms 296 KB Output is correct
42 Correct 1 ms 200 KB Output is correct
43 Correct 1 ms 200 KB Output is correct
44 Correct 1 ms 200 KB Output is correct
45 Correct 1 ms 216 KB Output is correct
46 Correct 2 ms 284 KB Output is correct
47 Correct 1 ms 200 KB Output is correct
48 Correct 1 ms 328 KB Output is correct
49 Correct 1 ms 328 KB Output is correct
50 Correct 1 ms 308 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 288 KB Output is correct
2 Correct 1 ms 300 KB Output is correct
3 Correct 1 ms 288 KB Output is correct
4 Correct 1 ms 200 KB Output is correct
5 Correct 1 ms 200 KB Output is correct
6 Correct 1 ms 200 KB Output is correct
7 Correct 1 ms 200 KB Output is correct
8 Correct 1 ms 200 KB Output is correct
9 Correct 1 ms 296 KB Output is correct
10 Correct 1 ms 284 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 292 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 1 ms 200 KB Output is correct
17 Correct 1 ms 304 KB Output is correct
18 Correct 2 ms 304 KB Output is correct
19 Correct 1 ms 292 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 280 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 284 KB Output is correct
28 Correct 2 ms 304 KB Output is correct
29 Correct 1 ms 200 KB Output is correct
30 Correct 1 ms 200 KB Output is correct
31 Correct 1 ms 200 KB Output is correct
32 Correct 1 ms 200 KB Output is correct
33 Correct 1 ms 300 KB Output is correct
34 Correct 1 ms 288 KB Output is correct
35 Correct 1 ms 296 KB Output is correct
36 Correct 1 ms 328 KB Output is correct
37 Correct 1 ms 200 KB Output is correct
38 Correct 1 ms 200 KB Output is correct
39 Correct 1 ms 328 KB Output is correct
40 Correct 2 ms 304 KB Output is correct
41 Correct 1 ms 200 KB Output is correct
42 Correct 1 ms 296 KB Output is correct
43 Correct 1 ms 200 KB Output is correct
44 Correct 2 ms 200 KB Output is correct
45 Correct 1 ms 200 KB Output is correct
46 Correct 1 ms 284 KB Output is correct
47 Correct 1 ms 292 KB Output is correct
48 Correct 1 ms 200 KB Output is correct
49 Correct 1 ms 300 KB Output is correct
50 Correct 1 ms 200 KB Output is correct
51 Correct 1 ms 200 KB Output is correct
52 Correct 1 ms 296 KB Output is correct
53 Correct 2 ms 292 KB Output is correct
54 Correct 1 ms 200 KB Output is correct
55 Correct 1 ms 200 KB Output is correct
56 Correct 1 ms 200 KB Output is correct
57 Correct 1 ms 200 KB Output is correct
58 Correct 1 ms 200 KB Output is correct
59 Correct 2 ms 296 KB Output is correct
60 Correct 1 ms 300 KB Output is correct
61 Correct 1 ms 200 KB Output is correct
62 Correct 1 ms 200 KB Output is correct
63 Correct 1 ms 200 KB Output is correct
64 Correct 1 ms 292 KB Output is correct
65 Correct 1 ms 280 KB Output is correct
66 Correct 1 ms 296 KB Output is correct
67 Correct 1 ms 200 KB Output is correct
68 Correct 1 ms 200 KB Output is correct
69 Correct 1 ms 200 KB Output is correct
70 Correct 1 ms 216 KB Output is correct
71 Correct 2 ms 284 KB Output is correct
72 Correct 1 ms 200 KB Output is correct
73 Correct 1 ms 328 KB Output is correct
74 Correct 1 ms 328 KB Output is correct
75 Correct 1 ms 308 KB Output is correct
76 Correct 1 ms 200 KB Output is correct
77 Correct 1 ms 200 KB Output is correct
78 Correct 1 ms 200 KB Output is correct
79 Correct 1 ms 200 KB Output is correct
80 Correct 1 ms 200 KB Output is correct
81 Correct 1 ms 200 KB Output is correct
82 Correct 1 ms 200 KB Output is correct
83 Correct 1 ms 200 KB Output is correct
84 Correct 1 ms 200 KB Output is correct
85 Correct 1 ms 304 KB Output is correct
86 Correct 2 ms 304 KB Output is correct
87 Correct 1 ms 200 KB Output is correct
88 Correct 1 ms 200 KB Output is correct
89 Correct 2 ms 200 KB Output is correct
90 Correct 1 ms 304 KB Output is correct
91 Correct 1 ms 304 KB Output is correct
92 Correct 1 ms 288 KB Output is correct
93 Correct 1 ms 300 KB Output is correct
94 Correct 1 ms 200 KB Output is correct
95 Correct 1 ms 200 KB Output is correct
96 Correct 1 ms 200 KB Output is correct
97 Correct 1 ms 200 KB Output is correct
98 Correct 1 ms 200 KB Output is correct
99 Correct 1 ms 300 KB Output is correct
100 Correct 1 ms 292 KB Output is correct
101 Correct 1 ms 296 KB Output is correct
102 Correct 1 ms 296 KB Output is correct
103 Correct 1 ms 200 KB Output is correct
104 Correct 1 ms 200 KB Output is correct
105 Correct 1 ms 292 KB Output is correct
106 Correct 1 ms 200 KB Output is correct
107 Correct 1 ms 328 KB Output is correct
108 Correct 1 ms 296 KB Output is correct
109 Correct 1 ms 200 KB Output is correct
110 Correct 1 ms 280 KB Output is correct
111 Correct 1 ms 200 KB Output is correct
112 Correct 1 ms 300 KB Output is correct
113 Correct 2 ms 296 KB Output is correct
114 Correct 1 ms 328 KB Output is correct
115 Correct 1 ms 200 KB Output is correct
116 Correct 1 ms 304 KB Output is correct
117 Correct 1 ms 296 KB Output is correct
118 Correct 1 ms 200 KB Output is correct
119 Correct 1 ms 200 KB Output is correct
120 Correct 1 ms 200 KB Output is correct
121 Correct 1 ms 288 KB Output is correct
122 Correct 1 ms 200 KB Output is correct
123 Correct 1 ms 296 KB Output is correct
124 Correct 1 ms 200 KB Output is correct
125 Correct 1 ms 300 KB Output is correct
126 Correct 1 ms 200 KB Output is correct
127 Correct 1 ms 200 KB Output is correct
128 Correct 1 ms 296 KB Output is correct
129 Correct 1 ms 200 KB Output is correct
130 Correct 1 ms 200 KB Output is correct
131 Correct 1 ms 200 KB Output is correct
132 Correct 1 ms 280 KB Output is correct
133 Correct 1 ms 328 KB Output is correct
134 Correct 1 ms 292 KB Output is correct
135 Correct 1 ms 308 KB Output is correct