oj.uz

Submission #550460

# Submission time Handle Problem Language Result Execution time Memory
550460 2022-04-18T08:47:57 Z LittleCube A Difficult(y) Choice (BOI21_books) C++14
100 / 100
 2 ms 336 KB 
#include <bits/stdc++.h>
#define ll long long

#include "books.h"

using namespace std;
//
// --- Sample implementation for the task books ---
//
// To compile this program with the sample grader, place:
//     books.h books_sample.cpp sample_grader.cpp
// in a single folder and run:
//     g++ books_sample.cpp sample_grader.cpp
// in this folder.
//

ll val[100005], used[100005];

ll getval(int i)
{
	if(val[i] == 0)
		val[i] = skim(i);
	return val[i];
}

void solve(int N, int K, long long A, int S) 
{
	vector<int> ans;
	ll sum = 0;
	for(int i = 1; i <= K; i++)
	{
		ans.emplace_back(i);
		sum += getval(i);
		used[i] = 1;
	}	
	if(sum > 2 * A)
	{
		impossible();
		return;
	}
	if(A <= sum)
	{
		answer(ans);
		return;
	}
	for(int i = 1; i <= K; i++)
	{
		//cerr << "exchanging " << i << '\n';
		int L = 1, R = N;
		while(L < R)
		{
			int mid = (L + R + 1) / 2, m = -1;
			if(used[mid])
			{
				R = mid - 1;
				continue;
			}
			ll dif = 0;
			for(int j = 0; j < K; j++)
				if(getval(mid) - getval(ans[j]) + sum <= 2 * A)
					if(getval(mid) - getval(ans[j]) > dif)
						dif = getval(mid) - getval(ans[j]), m = j; 
			if(m >= 0) L = mid;
			else R = mid - 1;
		}
		if(!used[L])
		{
			int m = -1;
			ll dif = 0;
			for(int j = 0; j < K; j++)
				if(getval(L) - getval(ans[j]) + sum <= 2 * A)
					if(getval(L) - getval(ans[j]) > dif)
						dif = getval(L) - getval(ans[j]), m = j; 
			used[L] = 1;
			sum += getval(L) - getval(ans[m]);
			ans[m] = L;
		}
		else 
		{
			impossible();
			return;
		}
		if(A <= sum)
		{
			answer(ans);
			return;
		}
	}
	impossible();
}

Subtask #1
5.0 / 5.0

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

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 208 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 308 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 208 KB Output is correct
9 Correct 2 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 304 KB Output is correct
16 Correct 1 ms 208 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 300 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 308 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 300 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 288 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 288 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 296 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 308 KB Output is correct
25 Correct 1 ms 308 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 300 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 288 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 288 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 296 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 308 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 304 KB Output is correct
28 Correct 1 ms 312 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 308 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 0 ms 308 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 288 KB Output is correct
35 Correct 1 ms 288 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 2 ms 208 KB Output is correct
38 Correct 1 ms 208 KB Output is correct
39 Correct 1 ms 304 KB Output is correct
40 Correct 1 ms 304 KB Output is correct
41 Correct 1 ms 296 KB Output is correct
42 Correct 1 ms 284 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 288 KB Output is correct
45 Correct 1 ms 292 KB Output is correct
46 Correct 1 ms 308 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 312 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 300 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 300 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 288 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 288 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 296 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 308 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 288 KB Output is correct
27 Correct 1 ms 304 KB Output is correct
28 Correct 1 ms 284 KB Output is correct
29 Correct 0 ms 304 KB Output is correct
30 Correct 1 ms 288 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 1 ms 208 KB Output is correct
33 Correct 1 ms 208 KB Output is correct
34 Correct 1 ms 304 KB Output is correct
35 Correct 1 ms 296 KB Output is correct
36 Correct 1 ms 312 KB Output is correct
37 Correct 1 ms 208 KB Output is correct
38 Correct 0 ms 288 KB Output is correct
39 Correct 1 ms 308 KB Output is correct
40 Correct 1 ms 308 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 300 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 208 KB Output is correct
45 Correct 1 ms 208 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 1 ms 300 KB Output is correct
48 Correct 1 ms 300 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 304 KB Output is correct

Subtask #7
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 300 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 312 KB Output is correct
4 Correct 1 ms 208 KB Output is correct
5 Correct 1 ms 304 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 308 KB Output is correct
10 Correct 1 ms 292 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 288 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 288 KB Output is correct
15 Correct 1 ms 288 KB Output is correct
16 Correct 1 ms 208 KB Output is correct
17 Correct 1 ms 296 KB Output is correct
18 Correct 1 ms 208 KB Output is correct
19 Correct 1 ms 304 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 208 KB Output is correct
22 Correct 1 ms 308 KB Output is correct
23 Correct 1 ms 300 KB Output is correct
24 Correct 1 ms 308 KB Output is correct
25 Correct 1 ms 308 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 1 ms 304 KB Output is correct
28 Correct 1 ms 312 KB Output is correct
29 Correct 1 ms 208 KB Output is correct
30 Correct 1 ms 308 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 0 ms 308 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 288 KB Output is correct
35 Correct 1 ms 288 KB Output is correct
36 Correct 1 ms 300 KB Output is correct
37 Correct 2 ms 208 KB Output is correct
38 Correct 1 ms 208 KB Output is correct
39 Correct 1 ms 304 KB Output is correct
40 Correct 1 ms 304 KB Output is correct
41 Correct 1 ms 296 KB Output is correct
42 Correct 1 ms 284 KB Output is correct
43 Correct 1 ms 208 KB Output is correct
44 Correct 1 ms 288 KB Output is correct
45 Correct 1 ms 292 KB Output is correct
46 Correct 1 ms 308 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 312 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 300 KB Output is correct
51 Correct 1 ms 288 KB Output is correct
52 Correct 1 ms 304 KB Output is correct
53 Correct 1 ms 284 KB Output is correct
54 Correct 0 ms 304 KB Output is correct
55 Correct 1 ms 288 KB Output is correct
56 Correct 1 ms 208 KB Output is correct
57 Correct 1 ms 208 KB Output is correct
58 Correct 1 ms 208 KB Output is correct
59 Correct 1 ms 304 KB Output is correct
60 Correct 1 ms 296 KB Output is correct
61 Correct 1 ms 312 KB Output is correct
62 Correct 1 ms 208 KB Output is correct
63 Correct 0 ms 288 KB Output is correct
64 Correct 1 ms 308 KB Output is correct
65 Correct 1 ms 308 KB Output is correct
66 Correct 1 ms 336 KB Output is correct
67 Correct 1 ms 300 KB Output is correct
68 Correct 1 ms 208 KB Output is correct
69 Correct 1 ms 208 KB Output is correct
70 Correct 1 ms 208 KB Output is correct
71 Correct 1 ms 336 KB Output is correct
72 Correct 1 ms 300 KB Output is correct
73 Correct 1 ms 300 KB Output is correct
74 Correct 1 ms 336 KB Output is correct
75 Correct 1 ms 304 KB Output is correct
76 Correct 1 ms 208 KB Output is correct
77 Correct 1 ms 208 KB Output is correct
78 Correct 1 ms 208 KB Output is correct
79 Correct 1 ms 208 KB Output is correct
80 Correct 1 ms 208 KB Output is correct
81 Correct 1 ms 208 KB Output is correct
82 Correct 1 ms 208 KB Output is correct
83 Correct 1 ms 208 KB Output is correct
84 Correct 1 ms 304 KB Output is correct
85 Correct 1 ms 336 KB Output is correct
86 Correct 1 ms 336 KB Output is correct
87 Correct 1 ms 304 KB Output is correct
88 Correct 1 ms 208 KB Output is correct
89 Correct 1 ms 336 KB Output is correct
90 Correct 1 ms 208 KB Output is correct
91 Correct 1 ms 336 KB Output is correct
92 Correct 1 ms 336 KB Output is correct
93 Correct 1 ms 300 KB Output is correct
94 Correct 1 ms 296 KB Output is correct
95 Correct 1 ms 208 KB Output is correct
96 Correct 1 ms 296 KB Output is correct
97 Correct 1 ms 208 KB Output is correct
98 Correct 1 ms 208 KB Output is correct
99 Correct 1 ms 208 KB Output is correct
100 Correct 1 ms 208 KB Output is correct
101 Correct 1 ms 300 KB Output is correct
102 Correct 1 ms 288 KB Output is correct
103 Correct 1 ms 284 KB Output is correct
104 Correct 1 ms 312 KB Output is correct
105 Correct 1 ms 304 KB Output is correct
106 Correct 1 ms 336 KB Output is correct
107 Correct 1 ms 308 KB Output is correct
108 Correct 1 ms 300 KB Output is correct
109 Correct 1 ms 308 KB Output is correct
110 Correct 1 ms 296 KB Output is correct
111 Correct 1 ms 208 KB Output is correct
112 Correct 1 ms 300 KB Output is correct
113 Correct 1 ms 292 KB Output is correct
114 Correct 1 ms 304 KB Output is correct
115 Correct 1 ms 336 KB Output is correct
116 Correct 1 ms 300 KB Output is correct
117 Correct 1 ms 308 KB Output is correct
118 Correct 0 ms 284 KB Output is correct
119 Correct 1 ms 208 KB Output is correct
120 Correct 1 ms 284 KB Output is correct
121 Correct 1 ms 308 KB Output is correct
122 Correct 1 ms 296 KB Output is correct
123 Correct 1 ms 300 KB Output is correct
124 Correct 1 ms 300 KB Output is correct
125 Correct 1 ms 300 KB Output is correct
126 Correct 1 ms 308 KB Output is correct
127 Correct 0 ms 208 KB Output is correct
128 Correct 1 ms 208 KB Output is correct
129 Correct 1 ms 304 KB Output is correct
130 Correct 1 ms 304 KB Output is correct
131 Correct 1 ms 308 KB Output is correct
132 Correct 1 ms 288 KB Output is correct
133 Correct 1 ms 336 KB Output is correct
134 Correct 1 ms 304 KB Output is correct
135 Correct 1 ms 316 KB Output is correct