# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
788599 |
2023-07-20T11:54:34 Z |
Ahmed57 |
Cake 3 (JOI19_cake3) |
C++17 |
|
1281 ms |
21632 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<long long> pref;
long long cl = 0 ,cr = -1 , sz;
struct node{
long long cnt = 0 , sum =0;
node():cnt(0),sum(0){};
}seg[800001];
void build(int p,int l,int r){
if(l==r){
seg[p].cnt = 0;seg[p].sum = 0;
return ;
}
int md = (l+r)/2;
build(p*2,l,md);build(p*2+1,md+1,r);
seg[p].cnt = seg[p*2].cnt+seg[p*2+1].cnt;
seg[p].sum = seg[p*2].sum+seg[p*2+1].sum;
}
void update(int p,int l,int r,int idx,long long val){
if(l==r){
seg[p].cnt+=val;
seg[p].sum+=val*pref[l-1];
return ;
}
int md = (l+r)/2;
if(idx<=md)update(p*2,l,md,idx,val);
else update(p*2+1,md+1,r,idx,val);
seg[p].cnt = seg[p*2].cnt+seg[p*2+1].cnt;
seg[p].sum = seg[p*2].sum+seg[p*2+1].sum;
}
long long query(int p,int l,int r,long long idx){
if(l==r){
return pref[l-1]*idx;
}
int md = (l+r)/2;
if(seg[p*2+1].cnt<idx)return seg[p*2+1].sum+query(p*2,l,md,idx-seg[p*2+1].cnt);
return query(p*2+1,md+1,r,idx);
}
int k;
long long inf = 1e18;
signed main() {
ios_base::sync_with_stdio(0);cin.tie(0);
long long n;
cin>>n>>k;
vector<pair<long long,long long>> v;
for(int i = 0;i<n;i++){
long long a,b;
cin>>a>>b;
pref.push_back(a);
v.push_back({b,a});
}
sort(pref.begin(),pref.end());
pref.erase(unique(pref.begin(),pref.end()),pref.end());
sz = pref.size();sort(v.begin(),v.end());
for(int i = 0;i<n;i++){
v[i].second = lower_bound(pref.begin(),pref.end(),v[i].second)-pref.begin()+1;
}
build(1,1,sz);
auto cost = [&](int l,int r){
while(cl>l)update(1,1,sz,v[--cl].second,1);
while(cr<r)update(1,1,sz,v[++cr].second,1);
while(cl<l)update(1,1,sz,v[cl++].second,-1);
while(cr>r)update(1,1,sz,v[cr--].second,-1);
return query(1,1,sz,k)-2*(v[r].first-v[l].first);
};
int ans = -inf;
function<void(int,int,int,int)> dnc = [&](int l,int r,int optl,int optr){
if(l>r) return;
int sum=0,mid=(l+r)>>1;
pair<int,int> opt={-inf,-1};
for(int i=min(optr,mid-k+1);i>=optl;i--){
int res=cost(i,mid);ans=max(ans,res);
opt=max(opt,{res,i});
}
dnc(l,mid-1,optl,opt.second);
dnc(mid+1,r,opt.second,optr);
};
dnc(k-1,n-1,0,n-k);
cout<<ans<<endl;
return 0;
}
Compilation message
cake3.cpp: In lambda function:
cake3.cpp:71:13: warning: unused variable 'sum' [-Wunused-variable]
71 | int sum=0,mid=(l+r)>>1;
| ^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
12756 KB |
Output is correct |
2 |
Correct |
6 ms |
12756 KB |
Output is correct |
3 |
Correct |
5 ms |
12800 KB |
Output is correct |
4 |
Correct |
6 ms |
12756 KB |
Output is correct |
5 |
Correct |
5 ms |
12756 KB |
Output is correct |
6 |
Correct |
5 ms |
12792 KB |
Output is correct |
7 |
Correct |
5 ms |
12756 KB |
Output is correct |
8 |
Correct |
5 ms |
12756 KB |
Output is correct |
9 |
Correct |
5 ms |
12756 KB |
Output is correct |
10 |
Correct |
6 ms |
12756 KB |
Output is correct |
11 |
Correct |
5 ms |
12760 KB |
Output is correct |
12 |
Correct |
5 ms |
12852 KB |
Output is correct |
13 |
Correct |
5 ms |
12756 KB |
Output is correct |
14 |
Correct |
5 ms |
12756 KB |
Output is correct |
15 |
Correct |
7 ms |
12756 KB |
Output is correct |
16 |
Correct |
5 ms |
12756 KB |
Output is correct |
17 |
Correct |
5 ms |
12756 KB |
Output is correct |
18 |
Correct |
5 ms |
12756 KB |
Output is correct |
19 |
Correct |
5 ms |
12756 KB |
Output is correct |
20 |
Correct |
6 ms |
12780 KB |
Output is correct |
21 |
Correct |
7 ms |
12828 KB |
Output is correct |
22 |
Correct |
5 ms |
12756 KB |
Output is correct |
23 |
Correct |
5 ms |
12792 KB |
Output is correct |
24 |
Correct |
5 ms |
12844 KB |
Output is correct |
25 |
Correct |
5 ms |
12756 KB |
Output is correct |
26 |
Correct |
5 ms |
12756 KB |
Output is correct |
27 |
Correct |
6 ms |
12756 KB |
Output is correct |
28 |
Correct |
5 ms |
12756 KB |
Output is correct |
29 |
Correct |
6 ms |
12788 KB |
Output is correct |
30 |
Correct |
5 ms |
12756 KB |
Output is correct |
31 |
Correct |
5 ms |
12756 KB |
Output is correct |
32 |
Correct |
5 ms |
12756 KB |
Output is correct |
33 |
Correct |
5 ms |
12756 KB |
Output is correct |
34 |
Correct |
5 ms |
12756 KB |
Output is correct |
35 |
Correct |
5 ms |
12744 KB |
Output is correct |
36 |
Correct |
6 ms |
12852 KB |
Output is correct |
37 |
Correct |
5 ms |
12756 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
12756 KB |
Output is correct |
2 |
Correct |
6 ms |
12756 KB |
Output is correct |
3 |
Correct |
5 ms |
12800 KB |
Output is correct |
4 |
Correct |
6 ms |
12756 KB |
Output is correct |
5 |
Correct |
5 ms |
12756 KB |
Output is correct |
6 |
Correct |
5 ms |
12792 KB |
Output is correct |
7 |
Correct |
5 ms |
12756 KB |
Output is correct |
8 |
Correct |
5 ms |
12756 KB |
Output is correct |
9 |
Correct |
5 ms |
12756 KB |
Output is correct |
10 |
Correct |
6 ms |
12756 KB |
Output is correct |
11 |
Correct |
5 ms |
12760 KB |
Output is correct |
12 |
Correct |
5 ms |
12852 KB |
Output is correct |
13 |
Correct |
5 ms |
12756 KB |
Output is correct |
14 |
Correct |
5 ms |
12756 KB |
Output is correct |
15 |
Correct |
7 ms |
12756 KB |
Output is correct |
16 |
Correct |
5 ms |
12756 KB |
Output is correct |
17 |
Correct |
5 ms |
12756 KB |
Output is correct |
18 |
Correct |
5 ms |
12756 KB |
Output is correct |
19 |
Correct |
5 ms |
12756 KB |
Output is correct |
20 |
Correct |
6 ms |
12780 KB |
Output is correct |
21 |
Correct |
7 ms |
12828 KB |
Output is correct |
22 |
Correct |
5 ms |
12756 KB |
Output is correct |
23 |
Correct |
5 ms |
12792 KB |
Output is correct |
24 |
Correct |
5 ms |
12844 KB |
Output is correct |
25 |
Correct |
5 ms |
12756 KB |
Output is correct |
26 |
Correct |
5 ms |
12756 KB |
Output is correct |
27 |
Correct |
6 ms |
12756 KB |
Output is correct |
28 |
Correct |
5 ms |
12756 KB |
Output is correct |
29 |
Correct |
6 ms |
12788 KB |
Output is correct |
30 |
Correct |
5 ms |
12756 KB |
Output is correct |
31 |
Correct |
5 ms |
12756 KB |
Output is correct |
32 |
Correct |
5 ms |
12756 KB |
Output is correct |
33 |
Correct |
5 ms |
12756 KB |
Output is correct |
34 |
Correct |
5 ms |
12756 KB |
Output is correct |
35 |
Correct |
5 ms |
12744 KB |
Output is correct |
36 |
Correct |
6 ms |
12852 KB |
Output is correct |
37 |
Correct |
5 ms |
12756 KB |
Output is correct |
38 |
Correct |
9 ms |
12884 KB |
Output is correct |
39 |
Correct |
9 ms |
12884 KB |
Output is correct |
40 |
Correct |
9 ms |
13024 KB |
Output is correct |
41 |
Correct |
8 ms |
12904 KB |
Output is correct |
42 |
Correct |
7 ms |
12884 KB |
Output is correct |
43 |
Correct |
7 ms |
12948 KB |
Output is correct |
44 |
Correct |
9 ms |
12884 KB |
Output is correct |
45 |
Correct |
9 ms |
12884 KB |
Output is correct |
46 |
Correct |
9 ms |
12864 KB |
Output is correct |
47 |
Correct |
10 ms |
12864 KB |
Output is correct |
48 |
Correct |
9 ms |
12860 KB |
Output is correct |
49 |
Correct |
8 ms |
12884 KB |
Output is correct |
50 |
Correct |
8 ms |
12884 KB |
Output is correct |
51 |
Correct |
8 ms |
12900 KB |
Output is correct |
52 |
Correct |
8 ms |
12904 KB |
Output is correct |
53 |
Correct |
8 ms |
12884 KB |
Output is correct |
54 |
Correct |
7 ms |
12884 KB |
Output is correct |
55 |
Correct |
7 ms |
12860 KB |
Output is correct |
56 |
Correct |
8 ms |
12868 KB |
Output is correct |
57 |
Correct |
7 ms |
12884 KB |
Output is correct |
58 |
Correct |
9 ms |
13012 KB |
Output is correct |
59 |
Correct |
6 ms |
12860 KB |
Output is correct |
60 |
Correct |
6 ms |
12968 KB |
Output is correct |
61 |
Correct |
6 ms |
12884 KB |
Output is correct |
62 |
Correct |
6 ms |
12860 KB |
Output is correct |
63 |
Correct |
6 ms |
12884 KB |
Output is correct |
64 |
Correct |
6 ms |
12884 KB |
Output is correct |
65 |
Correct |
9 ms |
12904 KB |
Output is correct |
66 |
Correct |
8 ms |
12904 KB |
Output is correct |
67 |
Correct |
9 ms |
12856 KB |
Output is correct |
68 |
Correct |
8 ms |
12912 KB |
Output is correct |
69 |
Correct |
8 ms |
12884 KB |
Output is correct |
70 |
Correct |
8 ms |
12956 KB |
Output is correct |
71 |
Correct |
7 ms |
12884 KB |
Output is correct |
72 |
Correct |
8 ms |
12964 KB |
Output is correct |
73 |
Correct |
8 ms |
12988 KB |
Output is correct |
74 |
Correct |
6 ms |
12884 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
12756 KB |
Output is correct |
2 |
Correct |
6 ms |
12756 KB |
Output is correct |
3 |
Correct |
5 ms |
12800 KB |
Output is correct |
4 |
Correct |
6 ms |
12756 KB |
Output is correct |
5 |
Correct |
5 ms |
12756 KB |
Output is correct |
6 |
Correct |
5 ms |
12792 KB |
Output is correct |
7 |
Correct |
5 ms |
12756 KB |
Output is correct |
8 |
Correct |
5 ms |
12756 KB |
Output is correct |
9 |
Correct |
5 ms |
12756 KB |
Output is correct |
10 |
Correct |
6 ms |
12756 KB |
Output is correct |
11 |
Correct |
5 ms |
12760 KB |
Output is correct |
12 |
Correct |
5 ms |
12852 KB |
Output is correct |
13 |
Correct |
5 ms |
12756 KB |
Output is correct |
14 |
Correct |
5 ms |
12756 KB |
Output is correct |
15 |
Correct |
7 ms |
12756 KB |
Output is correct |
16 |
Correct |
5 ms |
12756 KB |
Output is correct |
17 |
Correct |
5 ms |
12756 KB |
Output is correct |
18 |
Correct |
5 ms |
12756 KB |
Output is correct |
19 |
Correct |
5 ms |
12756 KB |
Output is correct |
20 |
Correct |
6 ms |
12780 KB |
Output is correct |
21 |
Correct |
7 ms |
12828 KB |
Output is correct |
22 |
Correct |
5 ms |
12756 KB |
Output is correct |
23 |
Correct |
5 ms |
12792 KB |
Output is correct |
24 |
Correct |
5 ms |
12844 KB |
Output is correct |
25 |
Correct |
5 ms |
12756 KB |
Output is correct |
26 |
Correct |
5 ms |
12756 KB |
Output is correct |
27 |
Correct |
6 ms |
12756 KB |
Output is correct |
28 |
Correct |
5 ms |
12756 KB |
Output is correct |
29 |
Correct |
6 ms |
12788 KB |
Output is correct |
30 |
Correct |
5 ms |
12756 KB |
Output is correct |
31 |
Correct |
5 ms |
12756 KB |
Output is correct |
32 |
Correct |
5 ms |
12756 KB |
Output is correct |
33 |
Correct |
5 ms |
12756 KB |
Output is correct |
34 |
Correct |
5 ms |
12756 KB |
Output is correct |
35 |
Correct |
5 ms |
12744 KB |
Output is correct |
36 |
Correct |
6 ms |
12852 KB |
Output is correct |
37 |
Correct |
5 ms |
12756 KB |
Output is correct |
38 |
Correct |
9 ms |
12884 KB |
Output is correct |
39 |
Correct |
9 ms |
12884 KB |
Output is correct |
40 |
Correct |
9 ms |
13024 KB |
Output is correct |
41 |
Correct |
8 ms |
12904 KB |
Output is correct |
42 |
Correct |
7 ms |
12884 KB |
Output is correct |
43 |
Correct |
7 ms |
12948 KB |
Output is correct |
44 |
Correct |
9 ms |
12884 KB |
Output is correct |
45 |
Correct |
9 ms |
12884 KB |
Output is correct |
46 |
Correct |
9 ms |
12864 KB |
Output is correct |
47 |
Correct |
10 ms |
12864 KB |
Output is correct |
48 |
Correct |
9 ms |
12860 KB |
Output is correct |
49 |
Correct |
8 ms |
12884 KB |
Output is correct |
50 |
Correct |
8 ms |
12884 KB |
Output is correct |
51 |
Correct |
8 ms |
12900 KB |
Output is correct |
52 |
Correct |
8 ms |
12904 KB |
Output is correct |
53 |
Correct |
8 ms |
12884 KB |
Output is correct |
54 |
Correct |
7 ms |
12884 KB |
Output is correct |
55 |
Correct |
7 ms |
12860 KB |
Output is correct |
56 |
Correct |
8 ms |
12868 KB |
Output is correct |
57 |
Correct |
7 ms |
12884 KB |
Output is correct |
58 |
Correct |
9 ms |
13012 KB |
Output is correct |
59 |
Correct |
6 ms |
12860 KB |
Output is correct |
60 |
Correct |
6 ms |
12968 KB |
Output is correct |
61 |
Correct |
6 ms |
12884 KB |
Output is correct |
62 |
Correct |
6 ms |
12860 KB |
Output is correct |
63 |
Correct |
6 ms |
12884 KB |
Output is correct |
64 |
Correct |
6 ms |
12884 KB |
Output is correct |
65 |
Correct |
9 ms |
12904 KB |
Output is correct |
66 |
Correct |
8 ms |
12904 KB |
Output is correct |
67 |
Correct |
9 ms |
12856 KB |
Output is correct |
68 |
Correct |
8 ms |
12912 KB |
Output is correct |
69 |
Correct |
8 ms |
12884 KB |
Output is correct |
70 |
Correct |
8 ms |
12956 KB |
Output is correct |
71 |
Correct |
7 ms |
12884 KB |
Output is correct |
72 |
Correct |
8 ms |
12964 KB |
Output is correct |
73 |
Correct |
8 ms |
12988 KB |
Output is correct |
74 |
Correct |
6 ms |
12884 KB |
Output is correct |
75 |
Correct |
1093 ms |
21036 KB |
Output is correct |
76 |
Correct |
1281 ms |
20828 KB |
Output is correct |
77 |
Correct |
929 ms |
21068 KB |
Output is correct |
78 |
Correct |
990 ms |
21200 KB |
Output is correct |
79 |
Correct |
126 ms |
21284 KB |
Output is correct |
80 |
Correct |
192 ms |
20980 KB |
Output is correct |
81 |
Correct |
742 ms |
20364 KB |
Output is correct |
82 |
Correct |
1006 ms |
20472 KB |
Output is correct |
83 |
Correct |
886 ms |
20704 KB |
Output is correct |
84 |
Correct |
943 ms |
20688 KB |
Output is correct |
85 |
Correct |
749 ms |
20408 KB |
Output is correct |
86 |
Correct |
364 ms |
20364 KB |
Output is correct |
87 |
Correct |
398 ms |
20348 KB |
Output is correct |
88 |
Correct |
671 ms |
20304 KB |
Output is correct |
89 |
Correct |
649 ms |
20392 KB |
Output is correct |
90 |
Correct |
378 ms |
20728 KB |
Output is correct |
91 |
Correct |
248 ms |
20288 KB |
Output is correct |
92 |
Correct |
271 ms |
20312 KB |
Output is correct |
93 |
Correct |
304 ms |
20364 KB |
Output is correct |
94 |
Correct |
210 ms |
20648 KB |
Output is correct |
95 |
Correct |
365 ms |
20704 KB |
Output is correct |
96 |
Correct |
62 ms |
20288 KB |
Output is correct |
97 |
Correct |
63 ms |
20620 KB |
Output is correct |
98 |
Correct |
82 ms |
20464 KB |
Output is correct |
99 |
Correct |
75 ms |
20564 KB |
Output is correct |
100 |
Correct |
66 ms |
20356 KB |
Output is correct |
101 |
Correct |
56 ms |
20332 KB |
Output is correct |
102 |
Correct |
488 ms |
20272 KB |
Output is correct |
103 |
Correct |
468 ms |
20292 KB |
Output is correct |
104 |
Correct |
582 ms |
20488 KB |
Output is correct |
105 |
Correct |
370 ms |
20368 KB |
Output is correct |
106 |
Correct |
381 ms |
20604 KB |
Output is correct |
107 |
Correct |
323 ms |
20340 KB |
Output is correct |
108 |
Correct |
910 ms |
20968 KB |
Output is correct |
109 |
Correct |
673 ms |
21532 KB |
Output is correct |
110 |
Correct |
108 ms |
19972 KB |
Output is correct |
111 |
Correct |
144 ms |
19908 KB |
Output is correct |
112 |
Correct |
378 ms |
19860 KB |
Output is correct |
113 |
Correct |
127 ms |
21632 KB |
Output is correct |