oj.uz

Submission #401009

# Submission time Handle Problem Language Result Execution time Memory
401009 2021-05-09T06:48:39 Z errorgorn A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 2 ms 296 KB 
#include <bits/stdc++.h>

#include "books.h"

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ii pair<int,int>
#define fi first
#define se second
#define endl '\n'

#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back

#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);(s<e)?x++:x--)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()

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 n,k,a,s;

map<int,ll> memo;

ll ask(int i){
	if (memo.count(i)) return memo[i];
	else return memo[i]=skim(i);
}

void solve(int N, int K, long long A, int S) {
	n=N,k=K,a=A,s=S;
	
    ll tot=0;
    
    vector<int> ans;
    rep(x,1,k+1){
		tot+=ask(x);
		ans.pub(x);
	}
	
    if (a<=tot && tot<=2*a){
		answer(ans);
		return;
	}
	if (2*a<tot){
		impossible();
		return;
	}
	
	int lo=1,hi=n+1,mi;
	while (hi-lo>1){
		mi=hi+lo>>1;
		
		if (ask(mi)<=a) lo=mi;
		else hi=mi;
	}
	
	if (lo!=n){
		ll temp=tot-ask(k)+ask(lo+1);
		if (a<=temp && temp<=2*a){
			ans.back()=lo+1;
			answer(ans);
			return;
		}
	}
	
	rep(x,0,k){
		ans[k-1-x]=lo-x;
		tot-=ask(k-x);
		tot+=ask(lo-x);
		
		//cout<<tot<<endl;
		
		if (tot<a) continue;
		if (tot<=2*a){
			answer(ans);
			return;
		}
	}
	
	impossible();
}

Compilation message

books.cpp: In function 'void solve(int, int, long long int, int)':
books.cpp:65:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   65 |   mi=hi+lo>>1;
      |      ~~^~~

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 204 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

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 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 KB Output is correct
14 Correct 1 ms 200 KB Output is correct
15 Correct 1 ms 200 KB Output is correct
16 Correct 2 ms 200 KB Output is correct

Subtask #3
10.0 / 10.0

# 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 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct

Subtask #4
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 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 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 292 KB Output is correct
18 Correct 1 ms 200 KB Output is correct
19 Correct 1 ms 200 KB Output is correct
20 Correct 1 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 2 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct

Subtask #5
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 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 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 292 KB Output is correct
18 Correct 1 ms 200 KB Output is correct
19 Correct 1 ms 200 KB Output is correct
20 Correct 1 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 2 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 200 KB Output is correct
28 Correct 1 ms 200 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 1 ms 200 KB Output is correct
35 Correct 1 ms 200 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 200 KB Output is correct
40 Correct 1 ms 200 KB Output is correct
41 Correct 1 ms 200 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 200 KB Output is correct
46 Correct 1 ms 200 KB Output is correct
47 Correct 1 ms 200 KB Output is correct
48 Correct 1 ms 200 KB Output is correct
49 Correct 1 ms 200 KB Output is correct
50 Correct 1 ms 204 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 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 292 KB Output is correct
18 Correct 1 ms 200 KB Output is correct
19 Correct 1 ms 200 KB Output is correct
20 Correct 1 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 2 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 200 KB Output is correct
28 Correct 1 ms 200 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 1 ms 200 KB Output is correct
35 Correct 1 ms 200 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 200 KB Output is correct
40 Correct 1 ms 204 KB Output is correct
41 Correct 1 ms 200 KB Output is correct
42 Correct 1 ms 200 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 200 KB Output is correct
45 Correct 1 ms 200 KB Output is correct
46 Correct 2 ms 200 KB Output is correct
47 Correct 2 ms 200 KB Output is correct
48 Correct 1 ms 200 KB Output is correct
49 Correct 1 ms 200 KB Output is correct
50 Correct 1 ms 200 KB Output is correct

Subtask #7
20.0 / 20.0

# 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 296 KB Output is correct
9 Correct 1 ms 200 KB Output is correct
10 Correct 1 ms 200 KB Output is correct
11 Correct 1 ms 200 KB Output is correct
12 Correct 1 ms 200 KB Output is correct
13 Correct 1 ms 200 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 292 KB Output is correct
18 Correct 1 ms 200 KB Output is correct
19 Correct 1 ms 200 KB Output is correct
20 Correct 1 ms 200 KB Output is correct
21 Correct 1 ms 200 KB Output is correct
22 Correct 1 ms 200 KB Output is correct
23 Correct 2 ms 200 KB Output is correct
24 Correct 1 ms 200 KB Output is correct
25 Correct 1 ms 200 KB Output is correct
26 Correct 1 ms 200 KB Output is correct
27 Correct 1 ms 200 KB Output is correct
28 Correct 1 ms 200 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 1 ms 200 KB Output is correct
35 Correct 1 ms 200 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 200 KB Output is correct
40 Correct 1 ms 200 KB Output is correct
41 Correct 1 ms 200 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 200 KB Output is correct
46 Correct 1 ms 200 KB Output is correct
47 Correct 1 ms 200 KB Output is correct
48 Correct 1 ms 200 KB Output is correct
49 Correct 1 ms 200 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 1 ms 200 KB Output is correct
52 Correct 1 ms 200 KB Output is correct
53 Correct 1 ms 200 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 1 ms 200 KB Output is correct
60 Correct 1 ms 200 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 200 KB Output is correct
65 Correct 1 ms 204 KB Output is correct
66 Correct 1 ms 200 KB Output is correct
67 Correct 1 ms 200 KB Output is correct
68 Correct 1 ms 204 KB Output is correct
69 Correct 1 ms 200 KB Output is correct
70 Correct 1 ms 200 KB Output is correct
71 Correct 2 ms 200 KB Output is correct
72 Correct 2 ms 200 KB Output is correct
73 Correct 1 ms 200 KB Output is correct
74 Correct 1 ms 200 KB Output is correct
75 Correct 1 ms 200 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 200 KB Output is correct
86 Correct 1 ms 200 KB Output is correct
87 Correct 1 ms 200 KB Output is correct
88 Correct 1 ms 200 KB Output is correct
89 Correct 1 ms 200 KB Output is correct
90 Correct 1 ms 200 KB Output is correct
91 Correct 1 ms 200 KB Output is correct
92 Correct 1 ms 200 KB Output is correct
93 Correct 1 ms 200 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 200 KB Output is correct
100 Correct 1 ms 200 KB Output is correct
101 Correct 1 ms 200 KB Output is correct
102 Correct 1 ms 200 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 200 KB Output is correct
106 Correct 1 ms 200 KB Output is correct
107 Correct 1 ms 200 KB Output is correct
108 Correct 1 ms 200 KB Output is correct
109 Correct 1 ms 200 KB Output is correct
110 Correct 1 ms 200 KB Output is correct
111 Correct 1 ms 200 KB Output is correct
112 Correct 1 ms 200 KB Output is correct
113 Correct 1 ms 200 KB Output is correct
114 Correct 1 ms 200 KB Output is correct
115 Correct 1 ms 200 KB Output is correct
116 Correct 1 ms 292 KB Output is correct
117 Correct 1 ms 200 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 200 KB Output is correct
122 Correct 1 ms 272 KB Output is correct
123 Correct 1 ms 200 KB Output is correct
124 Correct 1 ms 200 KB Output is correct
125 Correct 1 ms 200 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 200 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 200 KB Output is correct
133 Correct 1 ms 200 KB Output is correct
134 Correct 1 ms 200 KB Output is correct
135 Correct 1 ms 200 KB Output is correct