Submission #941619

# Submission time Handle Problem Language Result Execution time Memory
941619 2024-03-09T08:01:22 Z Xiaoyang A Difficult(y) Choice (BOI21_books) C++17
100 / 100
1 ms 716 KB
#include "books.h"
#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
 
#define fi first 
#define se second 
#define pll pair<ll,ll>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl;
#define MP make_pair
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define SZ(x) (ll)x.size()
#define ALL(x) x.begin(),x.end()
#define endl "\n"
const ll inf=1e18;
 
const ll maxn=1e5+5;
ll diff[maxn];
 
ll d(ll x){
	if(diff[x])return diff[x];
	return diff[x]=skim(x);
}
void solve(int n, int k, long long A, int s) {
	ll sum=0;
	vector<int>ans;
	rep(i,1,n+1){
		if(i<=k)sum+=d(i),ans.pb(i);
	}
	if(sum>2*A)impossible();
	if(sum>=A)answer(ans);
	// the sum of the first k elements is def lesser than A
	//if >=A and <=2A we would have alr answered
	//if >2A its def impossible 
	//if we find the largest index of element that is lesser than A
 
	ll lo=1,hi=n;
	while(lo<hi){
		ll mid=(lo+hi+1)>>1;
		if(d(mid)<=A)lo=mid;
		else hi=mid-1;
	}
 
	//lo+1 is more than A, check if >A + <A <=2A
	if(lo+1<=n and sum-d(k)+d(lo+1)<=2*A){
		ans[k-1]=lo+1;
		answer(ans);
	}
	
	//if not uhhh :think 
	//greedy? 
	//since lo is like less than A, and everything in the [1,k] is def<A
	//going from [1,k] to [2,k]U[lo] will def be <=2A
	//but if this continues we might get to >A eventually?
	//but as soon as its more than A we are done?
	//if it ever gets to >=A then we just check its <=2A?
	//if we do liddis i dont think we will have chance to exceed 2A???
  	//if even after all that still < A then rip cannot liao 
	ll id=1;
	while(id<=k and lo>0 and sum<A){
		ans[id-1]=lo;
		sum-=d(id);
		sum+=d(lo);
		id++;
		lo--;
	}
  	if(sum>=A)answer(ans);
	impossible();
	
	
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 596 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 1 ms 596 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 600 KB Output is correct
11 Correct 0 ms 600 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 0 ms 344 KB Output is correct
16 Correct 0 ms 600 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 448 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 448 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 444 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 448 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 444 KB Output is correct
26 Correct 1 ms 452 KB Output is correct
27 Correct 1 ms 448 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 0 ms 596 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 448 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 444 KB Output is correct
36 Correct 1 ms 448 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 444 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 1 ms 448 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 600 KB Output is correct
45 Correct 0 ms 344 KB Output is correct
46 Correct 0 ms 452 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 452 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 448 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 444 KB Output is correct
26 Correct 1 ms 344 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 604 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 356 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 344 KB Output is correct
33 Correct 1 ms 344 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 0 ms 344 KB Output is correct
36 Correct 1 ms 444 KB Output is correct
37 Correct 0 ms 344 KB Output is correct
38 Correct 0 ms 344 KB Output is correct
39 Correct 0 ms 444 KB Output is correct
40 Correct 1 ms 344 KB Output is correct
41 Correct 0 ms 444 KB Output is correct
42 Correct 1 ms 344 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 344 KB Output is correct
45 Correct 0 ms 596 KB Output is correct
46 Correct 1 ms 344 KB Output is correct
47 Correct 0 ms 448 KB Output is correct
48 Correct 0 ms 448 KB Output is correct
49 Correct 0 ms 344 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 1 ms 344 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 344 KB Output is correct
8 Correct 0 ms 448 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 344 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 444 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 344 KB Output is correct
17 Correct 1 ms 600 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 600 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 344 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 344 KB Output is correct
25 Correct 0 ms 444 KB Output is correct
26 Correct 1 ms 452 KB Output is correct
27 Correct 1 ms 448 KB Output is correct
28 Correct 1 ms 344 KB Output is correct
29 Correct 0 ms 596 KB Output is correct
30 Correct 0 ms 344 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 448 KB Output is correct
34 Correct 1 ms 344 KB Output is correct
35 Correct 1 ms 444 KB Output is correct
36 Correct 1 ms 448 KB Output is correct
37 Correct 1 ms 344 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 1 ms 444 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 1 ms 448 KB Output is correct
43 Correct 1 ms 344 KB Output is correct
44 Correct 1 ms 600 KB Output is correct
45 Correct 0 ms 344 KB Output is correct
46 Correct 0 ms 452 KB Output is correct
47 Correct 1 ms 344 KB Output is correct
48 Correct 1 ms 344 KB Output is correct
49 Correct 1 ms 452 KB Output is correct
50 Correct 1 ms 344 KB Output is correct
51 Correct 1 ms 344 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 604 KB Output is correct
54 Correct 1 ms 344 KB Output is correct
55 Correct 1 ms 356 KB Output is correct
56 Correct 0 ms 348 KB Output is correct
57 Correct 0 ms 344 KB Output is correct
58 Correct 1 ms 344 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 0 ms 344 KB Output is correct
61 Correct 1 ms 444 KB Output is correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 0 ms 444 KB Output is correct
65 Correct 1 ms 344 KB Output is correct
66 Correct 0 ms 444 KB Output is correct
67 Correct 1 ms 344 KB Output is correct
68 Correct 1 ms 344 KB Output is correct
69 Correct 1 ms 344 KB Output is correct
70 Correct 0 ms 596 KB Output is correct
71 Correct 1 ms 344 KB Output is correct
72 Correct 0 ms 448 KB Output is correct
73 Correct 0 ms 448 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 1 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 596 KB Output is correct
78 Correct 1 ms 344 KB Output is correct
79 Correct 1 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 0 ms 600 KB Output is correct
85 Correct 0 ms 344 KB Output is correct
86 Correct 1 ms 452 KB Output is correct
87 Correct 1 ms 344 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 1 ms 600 KB Output is correct
90 Correct 1 ms 344 KB Output is correct
91 Correct 0 ms 600 KB Output is correct
92 Correct 1 ms 600 KB Output is correct
93 Correct 1 ms 600 KB Output is correct
94 Correct 1 ms 440 KB Output is correct
95 Correct 0 ms 344 KB Output is correct
96 Correct 0 ms 344 KB Output is correct
97 Correct 1 ms 344 KB Output is correct
98 Correct 1 ms 344 KB Output is correct
99 Correct 1 ms 448 KB Output is correct
100 Correct 0 ms 344 KB Output is correct
101 Correct 0 ms 444 KB Output is correct
102 Correct 1 ms 352 KB Output is correct
103 Correct 0 ms 344 KB Output is correct
104 Correct 0 ms 344 KB Output is correct
105 Correct 1 ms 344 KB Output is correct
106 Correct 1 ms 600 KB Output is correct
107 Correct 1 ms 552 KB Output is correct
108 Correct 0 ms 344 KB Output is correct
109 Correct 1 ms 344 KB Output is correct
110 Correct 1 ms 344 KB Output is correct
111 Correct 0 ms 344 KB Output is correct
112 Correct 1 ms 500 KB Output is correct
113 Correct 1 ms 600 KB Output is correct
114 Correct 1 ms 344 KB Output is correct
115 Correct 1 ms 356 KB Output is correct
116 Correct 1 ms 612 KB Output is correct
117 Correct 1 ms 716 KB Output is correct
118 Correct 1 ms 356 KB Output is correct
119 Correct 1 ms 356 KB Output is correct
120 Correct 1 ms 356 KB Output is correct
121 Correct 1 ms 356 KB Output is correct
122 Correct 0 ms 460 KB Output is correct
123 Correct 1 ms 344 KB Output is correct
124 Correct 0 ms 448 KB Output is correct
125 Correct 0 ms 344 KB Output is correct
126 Correct 1 ms 448 KB Output is correct
127 Correct 0 ms 344 KB Output is correct
128 Correct 1 ms 344 KB Output is correct
129 Correct 1 ms 452 KB Output is correct
130 Correct 0 ms 344 KB Output is correct
131 Correct 1 ms 344 KB Output is correct
132 Correct 1 ms 356 KB Output is correct
133 Correct 1 ms 356 KB Output is correct
134 Correct 0 ms 452 KB Output is correct
135 Correct 1 ms 356 KB Output is correct