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Submission #494878

# Submission time Handle Problem Language Result Execution time Memory
494878 2021-12-17T06:01:44 Z PoPularPlusPlus A Difficult(y) Choice (BOI21_books) C++17
100 / 100
 3 ms 1096 KB 
#include <bits/stdc++.h>
//#include"books.h"
using namespace std;
#define ll long long
#define ull unsigned long long 
#define pb(e) push_back(e)
#define sv(a) sort(a.begin(),a.end())
#define sa(a,n) sort(a,a+n)
#define mp(a,b) make_pair(a,b)
#define vf first
#define vs second
#define ar array
#define all(x) x.begin(),x.end()
const int inf = 0x3f3f3f3f;
const int mod = 1000000007; 
const double PI=3.14159265358979323846264338327950288419716939937510582097494459230;
bool remender(ll a , ll b){return a%b;}

ll skim(int x);

void answer(vector<int> v);

void impossible();

void solve(int n , int k , ll a , int s){
	 ll arr[n + 1];
	 memset(arr,-1,sizeof arr);
	 for(int i = 1; i <= k; i++){
		 if(arr[i] == -1)
			arr[i] = skim(i);
	 }
	 int l = k , r = n;
	 ll sum = 0;
	 for(int i = 1; i <= k-1; i++)sum += arr[i];
	 if(sum + arr[k] > 2 * a){
		 impossible();
		 return;
	 }
	 int x = k;
	 while(l <= r){
		 int mid = (l + r)/2;
		 if(arr[mid]==-1)arr[mid] = skim(mid);
		 if(sum + arr[mid] >= a && sum + arr[mid] <= 2 * a){
			 vector<int> v;
			 for(int i = 1; i <= k-1; i++)v.pb(i);
			 v.pb(mid);
			 answer(v);
			 return;
		 }
		 if(sum + arr[mid] < a){
			 x  = mid;
			 l = mid + 1;
		 }
		 else {
			 r = mid - 1;
		 }
	 }
	 for(int i = x; i > x-k; i--){
		 if(arr[i]==-1)arr[i] = skim(i);
	 }
	 sum += arr[k];
	 if(sum >= a && sum <= 2 * a){
		 vector<int> v;
		 for(int i = 1; i <= k; i++)v.pb(i);
		 answer(v);
		 return;
	 }
	 for(int i = 0; i < k; i++){
		 sum -= arr[k - i];
		 sum += arr[x - i];
		 if(sum >= a && sum <= 2 * a){
			 vector<int> v;
			 for(int j = 1; j < k - i; j++)v.pb(j);
			 for(int j = x; j >= x - i; j--)v.pb(j);
			 sv(v);
			 answer(v);
			 return;
		 }
	 }
	 impossible();
}

/*
int main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);
	//int t;cin >> t;while(t--)
	solve();
	return 0;
}
*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 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 228 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 0 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 456 KB Output is correct
10 Correct 1 ms 416 KB Output is correct
11 Correct 1 ms 456 KB Output is correct
12 Correct 1 ms 408 KB Output is correct
13 Correct 1 ms 456 KB Output is correct
14 Correct 1 ms 408 KB Output is correct
15 Correct 1 ms 408 KB Output is correct
16 Correct 1 ms 408 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 1 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 1096 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 1 ms 968 KB Output is correct
9 Correct 1 ms 1040 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 1 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 1096 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 1 ms 968 KB Output is correct
9 Correct 1 ms 1040 KB Output is correct
10 Correct 1 ms 964 KB Output is correct
11 Correct 1 ms 968 KB Output is correct
12 Correct 1 ms 1056 KB Output is correct
13 Correct 1 ms 1044 KB Output is correct
14 Correct 1 ms 1048 KB Output is correct
15 Correct 1 ms 1032 KB Output is correct
16 Correct 1 ms 1048 KB Output is correct
17 Correct 1 ms 1032 KB Output is correct
18 Correct 1 ms 1048 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 1028 KB Output is correct
21 Correct 1 ms 1044 KB Output is correct
22 Correct 2 ms 960 KB Output is correct
23 Correct 1 ms 1048 KB Output is correct
24 Correct 1 ms 960 KB Output is correct
25 Correct 1 ms 960 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 1 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 1096 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 1 ms 968 KB Output is correct
9 Correct 1 ms 1040 KB Output is correct
10 Correct 1 ms 964 KB Output is correct
11 Correct 1 ms 968 KB Output is correct
12 Correct 1 ms 1056 KB Output is correct
13 Correct 1 ms 1044 KB Output is correct
14 Correct 1 ms 1048 KB Output is correct
15 Correct 1 ms 1032 KB Output is correct
16 Correct 1 ms 1048 KB Output is correct
17 Correct 1 ms 1032 KB Output is correct
18 Correct 1 ms 1048 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 1028 KB Output is correct
21 Correct 1 ms 1044 KB Output is correct
22 Correct 2 ms 960 KB Output is correct
23 Correct 1 ms 1048 KB Output is correct
24 Correct 1 ms 960 KB Output is correct
25 Correct 1 ms 960 KB Output is correct
26 Correct 1 ms 1036 KB Output is correct
27 Correct 1 ms 1032 KB Output is correct
28 Correct 1 ms 1032 KB Output is correct
29 Correct 1 ms 1040 KB Output is correct
30 Correct 1 ms 1044 KB Output is correct
31 Correct 3 ms 1048 KB Output is correct
32 Correct 1 ms 1056 KB Output is correct
33 Correct 1 ms 960 KB Output is correct
34 Correct 1 ms 1044 KB Output is correct
35 Correct 1 ms 960 KB Output is correct
36 Correct 1 ms 1040 KB Output is correct
37 Correct 1 ms 1032 KB Output is correct
38 Correct 1 ms 1032 KB Output is correct
39 Correct 1 ms 1048 KB Output is correct
40 Correct 1 ms 960 KB Output is correct
41 Correct 1 ms 960 KB Output is correct
42 Correct 1 ms 1048 KB Output is correct
43 Correct 1 ms 1032 KB Output is correct
44 Correct 1 ms 1044 KB Output is correct
45 Correct 1 ms 960 KB Output is correct
46 Correct 1 ms 960 KB Output is correct
47 Correct 1 ms 1044 KB Output is correct
48 Correct 1 ms 1052 KB Output is correct
49 Correct 1 ms 1052 KB Output is correct
50 Correct 1 ms 1040 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 1 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 1096 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 1 ms 968 KB Output is correct
9 Correct 1 ms 1040 KB Output is correct
10 Correct 1 ms 964 KB Output is correct
11 Correct 1 ms 968 KB Output is correct
12 Correct 1 ms 1056 KB Output is correct
13 Correct 1 ms 1044 KB Output is correct
14 Correct 1 ms 1048 KB Output is correct
15 Correct 1 ms 1032 KB Output is correct
16 Correct 1 ms 1048 KB Output is correct
17 Correct 1 ms 1032 KB Output is correct
18 Correct 1 ms 1048 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 1028 KB Output is correct
21 Correct 1 ms 1044 KB Output is correct
22 Correct 2 ms 960 KB Output is correct
23 Correct 1 ms 1048 KB Output is correct
24 Correct 1 ms 960 KB Output is correct
25 Correct 1 ms 960 KB Output is correct
26 Correct 1 ms 968 KB Output is correct
27 Correct 1 ms 1048 KB Output is correct
28 Correct 1 ms 1036 KB Output is correct
29 Correct 1 ms 960 KB Output is correct
30 Correct 1 ms 1052 KB Output is correct
31 Correct 1 ms 968 KB Output is correct
32 Correct 1 ms 1052 KB Output is correct
33 Correct 1 ms 1052 KB Output is correct
34 Correct 1 ms 1036 KB Output is correct
35 Correct 1 ms 960 KB Output is correct
36 Correct 1 ms 1028 KB Output is correct
37 Correct 1 ms 1048 KB Output is correct
38 Correct 1 ms 1036 KB Output is correct
39 Correct 1 ms 1048 KB Output is correct
40 Correct 1 ms 1052 KB Output is correct
41 Correct 1 ms 1044 KB Output is correct
42 Correct 1 ms 1040 KB Output is correct
43 Correct 1 ms 1048 KB Output is correct
44 Correct 2 ms 1044 KB Output is correct
45 Correct 1 ms 968 KB Output is correct
46 Correct 1 ms 1032 KB Output is correct
47 Correct 2 ms 1032 KB Output is correct
48 Correct 1 ms 968 KB Output is correct
49 Correct 1 ms 968 KB Output is correct
50 Correct 1 ms 1028 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 1 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 1096 KB Output is correct
6 Correct 1 ms 968 KB Output is correct
7 Correct 1 ms 968 KB Output is correct
8 Correct 1 ms 968 KB Output is correct
9 Correct 1 ms 1040 KB Output is correct
10 Correct 1 ms 964 KB Output is correct
11 Correct 1 ms 968 KB Output is correct
12 Correct 1 ms 1056 KB Output is correct
13 Correct 1 ms 1044 KB Output is correct
14 Correct 1 ms 1048 KB Output is correct
15 Correct 1 ms 1032 KB Output is correct
16 Correct 1 ms 1048 KB Output is correct
17 Correct 1 ms 1032 KB Output is correct
18 Correct 1 ms 1048 KB Output is correct
19 Correct 1 ms 1052 KB Output is correct
20 Correct 1 ms 1028 KB Output is correct
21 Correct 1 ms 1044 KB Output is correct
22 Correct 2 ms 960 KB Output is correct
23 Correct 1 ms 1048 KB Output is correct
24 Correct 1 ms 960 KB Output is correct
25 Correct 1 ms 960 KB Output is correct
26 Correct 1 ms 1036 KB Output is correct
27 Correct 1 ms 1032 KB Output is correct
28 Correct 1 ms 1032 KB Output is correct
29 Correct 1 ms 1040 KB Output is correct
30 Correct 1 ms 1044 KB Output is correct
31 Correct 3 ms 1048 KB Output is correct
32 Correct 1 ms 1056 KB Output is correct
33 Correct 1 ms 960 KB Output is correct
34 Correct 1 ms 1044 KB Output is correct
35 Correct 1 ms 960 KB Output is correct
36 Correct 1 ms 1040 KB Output is correct
37 Correct 1 ms 1032 KB Output is correct
38 Correct 1 ms 1032 KB Output is correct
39 Correct 1 ms 1048 KB Output is correct
40 Correct 1 ms 960 KB Output is correct
41 Correct 1 ms 960 KB Output is correct
42 Correct 1 ms 1048 KB Output is correct
43 Correct 1 ms 1032 KB Output is correct
44 Correct 1 ms 1044 KB Output is correct
45 Correct 1 ms 960 KB Output is correct
46 Correct 1 ms 960 KB Output is correct
47 Correct 1 ms 1044 KB Output is correct
48 Correct 1 ms 1052 KB Output is correct
49 Correct 1 ms 1052 KB Output is correct
50 Correct 1 ms 1040 KB Output is correct
51 Correct 1 ms 968 KB Output is correct
52 Correct 1 ms 1048 KB Output is correct
53 Correct 1 ms 1036 KB Output is correct
54 Correct 1 ms 960 KB Output is correct
55 Correct 1 ms 1052 KB Output is correct
56 Correct 1 ms 968 KB Output is correct
57 Correct 1 ms 1052 KB Output is correct
58 Correct 1 ms 1052 KB Output is correct
59 Correct 1 ms 1036 KB Output is correct
60 Correct 1 ms 960 KB Output is correct
61 Correct 1 ms 1028 KB Output is correct
62 Correct 1 ms 1048 KB Output is correct
63 Correct 1 ms 1036 KB Output is correct
64 Correct 1 ms 1048 KB Output is correct
65 Correct 1 ms 1052 KB Output is correct
66 Correct 1 ms 1044 KB Output is correct
67 Correct 1 ms 1040 KB Output is correct
68 Correct 1 ms 1048 KB Output is correct
69 Correct 2 ms 1044 KB Output is correct
70 Correct 1 ms 968 KB Output is correct
71 Correct 1 ms 1032 KB Output is correct
72 Correct 2 ms 1032 KB Output is correct
73 Correct 1 ms 968 KB Output is correct
74 Correct 1 ms 968 KB Output is correct
75 Correct 1 ms 1028 KB Output is correct
76 Correct 0 ms 200 KB Output is correct
77 Correct 1 ms 200 KB Output is correct
78 Correct 1 ms 276 KB Output is correct
79 Correct 1 ms 288 KB Output is correct
80 Correct 1 ms 200 KB Output is correct
81 Correct 0 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 408 KB Output is correct
85 Correct 1 ms 456 KB Output is correct
86 Correct 1 ms 456 KB Output is correct
87 Correct 1 ms 404 KB Output is correct
88 Correct 1 ms 408 KB Output is correct
89 Correct 1 ms 408 KB Output is correct
90 Correct 1 ms 456 KB Output is correct
91 Correct 1 ms 456 KB Output is correct
92 Correct 1 ms 968 KB Output is correct
93 Correct 1 ms 1048 KB Output is correct
94 Correct 1 ms 1044 KB Output is correct
95 Correct 1 ms 960 KB Output is correct
96 Correct 1 ms 1032 KB Output is correct
97 Correct 1 ms 1044 KB Output is correct
98 Correct 1 ms 1044 KB Output is correct
99 Correct 1 ms 968 KB Output is correct
100 Correct 1 ms 1036 KB Output is correct
101 Correct 1 ms 1056 KB Output is correct
102 Correct 1 ms 1032 KB Output is correct
103 Correct 1 ms 1040 KB Output is correct
104 Correct 1 ms 968 KB Output is correct
105 Correct 1 ms 1040 KB Output is correct
106 Correct 1 ms 1040 KB Output is correct
107 Correct 1 ms 1052 KB Output is correct
108 Correct 2 ms 1040 KB Output is correct
109 Correct 1 ms 1052 KB Output is correct
110 Correct 1 ms 1040 KB Output is correct
111 Correct 1 ms 1048 KB Output is correct
112 Correct 1 ms 960 KB Output is correct
113 Correct 1 ms 960 KB Output is correct
114 Correct 1 ms 1052 KB Output is correct
115 Correct 1 ms 968 KB Output is correct
116 Correct 1 ms 1052 KB Output is correct
117 Correct 1 ms 1040 KB Output is correct
118 Correct 1 ms 1032 KB Output is correct
119 Correct 1 ms 960 KB Output is correct
120 Correct 1 ms 1040 KB Output is correct
121 Correct 1 ms 1004 KB Output is correct
122 Correct 2 ms 1040 KB Output is correct
123 Correct 1 ms 1044 KB Output is correct
124 Correct 1 ms 968 KB Output is correct
125 Correct 1 ms 1044 KB Output is correct
126 Correct 1 ms 1040 KB Output is correct
127 Correct 1 ms 1040 KB Output is correct
128 Correct 1 ms 1048 KB Output is correct
129 Correct 1 ms 1052 KB Output is correct
130 Correct 1 ms 1032 KB Output is correct
131 Correct 1 ms 1044 KB Output is correct
132 Correct 1 ms 1040 KB Output is correct
133 Correct 1 ms 960 KB Output is correct
134 Correct 1 ms 1032 KB Output is correct
135 Correct 1 ms 1044 KB Output is correct