#include <bits/stdc++.h>
using namespace std;
#define int long long
const int MOD = 1e9 + 7;
const int HALF = 5e8 + 4;
vector<int> disc;
struct seg {
int n, h; vector<int> v, lazy;
seg(int _n): n(_n), h(64-__builtin_clzll(_n)), lazy(2*_n,1), v(2*_n) {
for(int i=0;i<n;i++) v[i+n]=disc[i+1]-disc[i];
for(int i=n;i--;) {v[i]=v[i<<1]+v[i<<1|1]; if(v[i]>=MOD) v[i]-=MOD;}
}
void calc(int x) {v[x]=(v[x<<1]+v[x<<1|1])*lazy[x]%MOD;}
void app(int x, int k) {
(v[x]*=k)%=MOD;
if(x<n) (lazy[x]*=k)%=MOD;
}
void push(int x) {
int s=h;
for(x+=n;s;s--) {
int i=x>>s;
app(i<<1,lazy[i]);
app(i<<1|1,lazy[i]);
lazy[i]=1;
}
}
void build(int x) {for(x+=n;x>>=1;) calc(x);}
void up(int x, int y, int m) {
push(x); push(y-1);
int x0 = x, y0 = y;
for(x+=n,y+=n;x<y;x>>=1,y>>=1) {
if(x&1) app(x++,m);
if(y&1) app(--y,m);
}
build(x0); build(y0-1);
}
};
main() {
int n; cin >> n;
int a[n], b[n];
for(int i=0;i<n;i++) cin>>a[i];
for(int i=0;i<n;i++) cin>>b[i];
for(int i=0;i<n;i++) disc.push_back(a[i]),disc.push_back(b[i]);
disc.push_back(0);
sort(disc.begin(),disc.end());
while(disc.size()<=(1<<20)) disc.push_back(1<<30);
int aa[n], bb[n];
for(int i=0;i<n;i++) {
if(a[i]>b[i]) swap(a[i],b[i]);
aa[i]=lower_bound(disc.begin(),disc.end(),a[i])-disc.begin();
bb[i]=lower_bound(disc.begin(),disc.end(),b[i])-disc.begin();
}
seg sl(1<<20), sr(1<<20);
int ansl[n], ansr[n];
int ans = 0;
for(int i=0;i<n;i++) {
sl.up(0,aa[i],0);
sl.up(aa[i],bb[i],HALF);
ans-=sl.v[1];
}
for(int i=n;i--;) {
sr.up(0,aa[i],0);
sr.up(aa[i],bb[i],HALF);
ans-=sr.v[1];
}
for(int i=0;i<n;i++) ans-=(HALF*(a[i]+b[i]))%MOD;
(ans += (n<<30) + n * sl.v[1]) %= MOD;
if(ans<0) ans+=MOD;
for(int i=0;i<n;i++) {ans<<=1; if(ans>=MOD) ans-=MOD;}
cout << ans;
}
Compilation message
Main.cpp: In constructor 'seg::seg(long long int)':
Main.cpp:8:27: warning: 'seg::lazy' will be initialized after [-Wreorder]
8 | int n, h; vector<int> v, lazy;
| ^~~~
Main.cpp:8:24: warning: 'std::vector<long long int> seg::v' [-Wreorder]
8 | int n, h; vector<int> v, lazy;
| ^
Main.cpp:9:2: warning: when initialized here [-Wreorder]
9 | seg(int _n): n(_n), h(64-__builtin_clzll(_n)), lazy(2*_n,1), v(2*_n) {
| ^~~
Main.cpp: At global scope:
Main.cpp:38:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
38 | main() {
| ^~~~
Main.cpp: In function 'int main()':
Main.cpp:54:6: warning: unused variable 'ansl' [-Wunused-variable]
54 | int ansl[n], ansr[n];
| ^~~~
Main.cpp:54:15: warning: unused variable 'ansr' [-Wunused-variable]
54 | int ansl[n], ansr[n];
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
38 ms |
74384 KB |
Output is correct |
2 |
Correct |
37 ms |
74404 KB |
Output is correct |
3 |
Correct |
38 ms |
74352 KB |
Output is correct |
4 |
Correct |
37 ms |
74404 KB |
Output is correct |
5 |
Correct |
34 ms |
74368 KB |
Output is correct |
6 |
Correct |
34 ms |
74400 KB |
Output is correct |
7 |
Correct |
36 ms |
74428 KB |
Output is correct |
8 |
Correct |
47 ms |
74312 KB |
Output is correct |
9 |
Correct |
38 ms |
74324 KB |
Output is correct |
10 |
Correct |
36 ms |
74432 KB |
Output is correct |
11 |
Correct |
37 ms |
74424 KB |
Output is correct |
12 |
Correct |
37 ms |
74388 KB |
Output is correct |
13 |
Correct |
37 ms |
74388 KB |
Output is correct |
14 |
Correct |
37 ms |
74432 KB |
Output is correct |
15 |
Correct |
40 ms |
74256 KB |
Output is correct |
16 |
Correct |
37 ms |
74416 KB |
Output is correct |
17 |
Correct |
38 ms |
74312 KB |
Output is correct |
18 |
Correct |
40 ms |
74428 KB |
Output is correct |
19 |
Correct |
37 ms |
74388 KB |
Output is correct |
20 |
Correct |
37 ms |
74304 KB |
Output is correct |
21 |
Correct |
37 ms |
74424 KB |
Output is correct |
22 |
Correct |
38 ms |
74408 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
74404 KB |
Output is correct |
2 |
Correct |
47 ms |
74392 KB |
Output is correct |
3 |
Correct |
39 ms |
74404 KB |
Output is correct |
4 |
Correct |
37 ms |
74408 KB |
Output is correct |
5 |
Correct |
36 ms |
74432 KB |
Output is correct |
6 |
Correct |
36 ms |
74332 KB |
Output is correct |
7 |
Correct |
38 ms |
74404 KB |
Output is correct |
8 |
Correct |
38 ms |
74432 KB |
Output is correct |
9 |
Correct |
38 ms |
74388 KB |
Output is correct |
10 |
Correct |
40 ms |
74384 KB |
Output is correct |
11 |
Correct |
37 ms |
74428 KB |
Output is correct |
12 |
Correct |
37 ms |
74432 KB |
Output is correct |
13 |
Correct |
37 ms |
74428 KB |
Output is correct |
14 |
Correct |
37 ms |
74452 KB |
Output is correct |
15 |
Correct |
36 ms |
74380 KB |
Output is correct |
16 |
Correct |
37 ms |
74408 KB |
Output is correct |
17 |
Correct |
37 ms |
74420 KB |
Output is correct |
18 |
Correct |
37 ms |
74404 KB |
Output is correct |
19 |
Correct |
37 ms |
74208 KB |
Output is correct |
20 |
Correct |
37 ms |
74412 KB |
Output is correct |
21 |
Correct |
37 ms |
74420 KB |
Output is correct |
22 |
Correct |
38 ms |
74356 KB |
Output is correct |
23 |
Correct |
37 ms |
74396 KB |
Output is correct |
24 |
Correct |
41 ms |
74388 KB |
Output is correct |
25 |
Correct |
39 ms |
74464 KB |
Output is correct |
26 |
Correct |
38 ms |
74428 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
74404 KB |
Output is correct |
2 |
Correct |
47 ms |
74392 KB |
Output is correct |
3 |
Correct |
39 ms |
74404 KB |
Output is correct |
4 |
Correct |
37 ms |
74408 KB |
Output is correct |
5 |
Correct |
36 ms |
74432 KB |
Output is correct |
6 |
Correct |
36 ms |
74332 KB |
Output is correct |
7 |
Correct |
38 ms |
74404 KB |
Output is correct |
8 |
Correct |
38 ms |
74432 KB |
Output is correct |
9 |
Correct |
38 ms |
74388 KB |
Output is correct |
10 |
Correct |
40 ms |
74384 KB |
Output is correct |
11 |
Correct |
37 ms |
74428 KB |
Output is correct |
12 |
Correct |
37 ms |
74432 KB |
Output is correct |
13 |
Correct |
37 ms |
74428 KB |
Output is correct |
14 |
Correct |
37 ms |
74452 KB |
Output is correct |
15 |
Correct |
36 ms |
74380 KB |
Output is correct |
16 |
Correct |
37 ms |
74408 KB |
Output is correct |
17 |
Correct |
37 ms |
74420 KB |
Output is correct |
18 |
Correct |
37 ms |
74404 KB |
Output is correct |
19 |
Correct |
37 ms |
74208 KB |
Output is correct |
20 |
Correct |
37 ms |
74412 KB |
Output is correct |
21 |
Correct |
37 ms |
74420 KB |
Output is correct |
22 |
Correct |
38 ms |
74356 KB |
Output is correct |
23 |
Correct |
37 ms |
74396 KB |
Output is correct |
24 |
Correct |
41 ms |
74388 KB |
Output is correct |
25 |
Correct |
39 ms |
74464 KB |
Output is correct |
26 |
Correct |
38 ms |
74428 KB |
Output is correct |
27 |
Correct |
71 ms |
74832 KB |
Output is correct |
28 |
Correct |
72 ms |
74608 KB |
Output is correct |
29 |
Correct |
75 ms |
74792 KB |
Output is correct |
30 |
Correct |
79 ms |
74644 KB |
Output is correct |
31 |
Correct |
68 ms |
74792 KB |
Output is correct |
32 |
Correct |
63 ms |
74660 KB |
Output is correct |
33 |
Correct |
60 ms |
74688 KB |
Output is correct |
34 |
Correct |
69 ms |
74664 KB |
Output is correct |
35 |
Correct |
73 ms |
74756 KB |
Output is correct |
36 |
Correct |
67 ms |
74680 KB |
Output is correct |
37 |
Correct |
72 ms |
74680 KB |
Output is correct |
38 |
Correct |
71 ms |
74680 KB |
Output is correct |
39 |
Correct |
72 ms |
74648 KB |
Output is correct |
40 |
Correct |
70 ms |
74648 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
38 ms |
74384 KB |
Output is correct |
2 |
Correct |
37 ms |
74404 KB |
Output is correct |
3 |
Correct |
38 ms |
74352 KB |
Output is correct |
4 |
Correct |
37 ms |
74404 KB |
Output is correct |
5 |
Correct |
34 ms |
74368 KB |
Output is correct |
6 |
Correct |
34 ms |
74400 KB |
Output is correct |
7 |
Correct |
36 ms |
74428 KB |
Output is correct |
8 |
Correct |
47 ms |
74312 KB |
Output is correct |
9 |
Correct |
38 ms |
74324 KB |
Output is correct |
10 |
Correct |
36 ms |
74432 KB |
Output is correct |
11 |
Correct |
37 ms |
74424 KB |
Output is correct |
12 |
Correct |
37 ms |
74388 KB |
Output is correct |
13 |
Correct |
37 ms |
74388 KB |
Output is correct |
14 |
Correct |
37 ms |
74432 KB |
Output is correct |
15 |
Correct |
40 ms |
74256 KB |
Output is correct |
16 |
Correct |
37 ms |
74416 KB |
Output is correct |
17 |
Correct |
38 ms |
74312 KB |
Output is correct |
18 |
Correct |
40 ms |
74428 KB |
Output is correct |
19 |
Correct |
37 ms |
74388 KB |
Output is correct |
20 |
Correct |
37 ms |
74304 KB |
Output is correct |
21 |
Correct |
37 ms |
74424 KB |
Output is correct |
22 |
Correct |
38 ms |
74408 KB |
Output is correct |
23 |
Correct |
37 ms |
74404 KB |
Output is correct |
24 |
Correct |
47 ms |
74392 KB |
Output is correct |
25 |
Correct |
39 ms |
74404 KB |
Output is correct |
26 |
Correct |
37 ms |
74408 KB |
Output is correct |
27 |
Correct |
36 ms |
74432 KB |
Output is correct |
28 |
Correct |
36 ms |
74332 KB |
Output is correct |
29 |
Correct |
38 ms |
74404 KB |
Output is correct |
30 |
Correct |
38 ms |
74432 KB |
Output is correct |
31 |
Correct |
38 ms |
74388 KB |
Output is correct |
32 |
Correct |
40 ms |
74384 KB |
Output is correct |
33 |
Correct |
37 ms |
74428 KB |
Output is correct |
34 |
Correct |
37 ms |
74432 KB |
Output is correct |
35 |
Correct |
37 ms |
74428 KB |
Output is correct |
36 |
Correct |
37 ms |
74452 KB |
Output is correct |
37 |
Correct |
36 ms |
74380 KB |
Output is correct |
38 |
Correct |
37 ms |
74408 KB |
Output is correct |
39 |
Correct |
37 ms |
74420 KB |
Output is correct |
40 |
Correct |
37 ms |
74404 KB |
Output is correct |
41 |
Correct |
37 ms |
74208 KB |
Output is correct |
42 |
Correct |
37 ms |
74412 KB |
Output is correct |
43 |
Correct |
37 ms |
74420 KB |
Output is correct |
44 |
Correct |
38 ms |
74356 KB |
Output is correct |
45 |
Correct |
37 ms |
74396 KB |
Output is correct |
46 |
Correct |
41 ms |
74388 KB |
Output is correct |
47 |
Correct |
39 ms |
74464 KB |
Output is correct |
48 |
Correct |
38 ms |
74428 KB |
Output is correct |
49 |
Correct |
71 ms |
74832 KB |
Output is correct |
50 |
Correct |
72 ms |
74608 KB |
Output is correct |
51 |
Correct |
75 ms |
74792 KB |
Output is correct |
52 |
Correct |
79 ms |
74644 KB |
Output is correct |
53 |
Correct |
68 ms |
74792 KB |
Output is correct |
54 |
Correct |
63 ms |
74660 KB |
Output is correct |
55 |
Correct |
60 ms |
74688 KB |
Output is correct |
56 |
Correct |
69 ms |
74664 KB |
Output is correct |
57 |
Correct |
73 ms |
74756 KB |
Output is correct |
58 |
Correct |
67 ms |
74680 KB |
Output is correct |
59 |
Correct |
72 ms |
74680 KB |
Output is correct |
60 |
Correct |
71 ms |
74680 KB |
Output is correct |
61 |
Correct |
72 ms |
74648 KB |
Output is correct |
62 |
Correct |
70 ms |
74648 KB |
Output is correct |
63 |
Correct |
75 ms |
74928 KB |
Output is correct |
64 |
Correct |
73 ms |
74936 KB |
Output is correct |
65 |
Correct |
73 ms |
74900 KB |
Output is correct |
66 |
Correct |
68 ms |
74680 KB |
Output is correct |
67 |
Correct |
72 ms |
74968 KB |
Output is correct |
68 |
Correct |
69 ms |
74800 KB |
Output is correct |
69 |
Correct |
71 ms |
74876 KB |
Output is correct |
70 |
Correct |
74 ms |
74680 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
37 ms |
74408 KB |
Output is correct |
2 |
Correct |
44 ms |
74432 KB |
Output is correct |
3 |
Correct |
37 ms |
74428 KB |
Output is correct |
4 |
Correct |
37 ms |
74284 KB |
Output is correct |
5 |
Correct |
36 ms |
74432 KB |
Output is correct |
6 |
Correct |
37 ms |
74432 KB |
Output is correct |
7 |
Correct |
38 ms |
74420 KB |
Output is correct |
8 |
Correct |
38 ms |
74388 KB |
Output is correct |
9 |
Correct |
37 ms |
74388 KB |
Output is correct |
10 |
Correct |
72 ms |
74652 KB |
Output is correct |
11 |
Correct |
74 ms |
74748 KB |
Output is correct |
12 |
Correct |
81 ms |
74664 KB |
Output is correct |
13 |
Correct |
73 ms |
74692 KB |
Output is correct |
14 |
Correct |
1644 ms |
92052 KB |
Output is correct |
15 |
Correct |
1643 ms |
91800 KB |
Output is correct |
16 |
Correct |
1745 ms |
91800 KB |
Output is correct |
17 |
Correct |
1681 ms |
92052 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
38 ms |
74384 KB |
Output is correct |
2 |
Correct |
37 ms |
74404 KB |
Output is correct |
3 |
Correct |
38 ms |
74352 KB |
Output is correct |
4 |
Correct |
37 ms |
74404 KB |
Output is correct |
5 |
Correct |
34 ms |
74368 KB |
Output is correct |
6 |
Correct |
34 ms |
74400 KB |
Output is correct |
7 |
Correct |
36 ms |
74428 KB |
Output is correct |
8 |
Correct |
47 ms |
74312 KB |
Output is correct |
9 |
Correct |
38 ms |
74324 KB |
Output is correct |
10 |
Correct |
36 ms |
74432 KB |
Output is correct |
11 |
Correct |
37 ms |
74424 KB |
Output is correct |
12 |
Correct |
37 ms |
74388 KB |
Output is correct |
13 |
Correct |
37 ms |
74388 KB |
Output is correct |
14 |
Correct |
37 ms |
74432 KB |
Output is correct |
15 |
Correct |
40 ms |
74256 KB |
Output is correct |
16 |
Correct |
37 ms |
74416 KB |
Output is correct |
17 |
Correct |
38 ms |
74312 KB |
Output is correct |
18 |
Correct |
40 ms |
74428 KB |
Output is correct |
19 |
Correct |
37 ms |
74388 KB |
Output is correct |
20 |
Correct |
37 ms |
74304 KB |
Output is correct |
21 |
Correct |
37 ms |
74424 KB |
Output is correct |
22 |
Correct |
38 ms |
74408 KB |
Output is correct |
23 |
Correct |
37 ms |
74404 KB |
Output is correct |
24 |
Correct |
47 ms |
74392 KB |
Output is correct |
25 |
Correct |
39 ms |
74404 KB |
Output is correct |
26 |
Correct |
37 ms |
74408 KB |
Output is correct |
27 |
Correct |
36 ms |
74432 KB |
Output is correct |
28 |
Correct |
36 ms |
74332 KB |
Output is correct |
29 |
Correct |
38 ms |
74404 KB |
Output is correct |
30 |
Correct |
38 ms |
74432 KB |
Output is correct |
31 |
Correct |
38 ms |
74388 KB |
Output is correct |
32 |
Correct |
40 ms |
74384 KB |
Output is correct |
33 |
Correct |
37 ms |
74428 KB |
Output is correct |
34 |
Correct |
37 ms |
74432 KB |
Output is correct |
35 |
Correct |
37 ms |
74428 KB |
Output is correct |
36 |
Correct |
37 ms |
74452 KB |
Output is correct |
37 |
Correct |
36 ms |
74380 KB |
Output is correct |
38 |
Correct |
37 ms |
74408 KB |
Output is correct |
39 |
Correct |
37 ms |
74420 KB |
Output is correct |
40 |
Correct |
37 ms |
74404 KB |
Output is correct |
41 |
Correct |
37 ms |
74208 KB |
Output is correct |
42 |
Correct |
37 ms |
74412 KB |
Output is correct |
43 |
Correct |
37 ms |
74420 KB |
Output is correct |
44 |
Correct |
38 ms |
74356 KB |
Output is correct |
45 |
Correct |
37 ms |
74396 KB |
Output is correct |
46 |
Correct |
41 ms |
74388 KB |
Output is correct |
47 |
Correct |
39 ms |
74464 KB |
Output is correct |
48 |
Correct |
38 ms |
74428 KB |
Output is correct |
49 |
Correct |
71 ms |
74832 KB |
Output is correct |
50 |
Correct |
72 ms |
74608 KB |
Output is correct |
51 |
Correct |
75 ms |
74792 KB |
Output is correct |
52 |
Correct |
79 ms |
74644 KB |
Output is correct |
53 |
Correct |
68 ms |
74792 KB |
Output is correct |
54 |
Correct |
63 ms |
74660 KB |
Output is correct |
55 |
Correct |
60 ms |
74688 KB |
Output is correct |
56 |
Correct |
69 ms |
74664 KB |
Output is correct |
57 |
Correct |
73 ms |
74756 KB |
Output is correct |
58 |
Correct |
67 ms |
74680 KB |
Output is correct |
59 |
Correct |
72 ms |
74680 KB |
Output is correct |
60 |
Correct |
71 ms |
74680 KB |
Output is correct |
61 |
Correct |
72 ms |
74648 KB |
Output is correct |
62 |
Correct |
70 ms |
74648 KB |
Output is correct |
63 |
Correct |
75 ms |
74928 KB |
Output is correct |
64 |
Correct |
73 ms |
74936 KB |
Output is correct |
65 |
Correct |
73 ms |
74900 KB |
Output is correct |
66 |
Correct |
68 ms |
74680 KB |
Output is correct |
67 |
Correct |
72 ms |
74968 KB |
Output is correct |
68 |
Correct |
69 ms |
74800 KB |
Output is correct |
69 |
Correct |
71 ms |
74876 KB |
Output is correct |
70 |
Correct |
74 ms |
74680 KB |
Output is correct |
71 |
Correct |
37 ms |
74408 KB |
Output is correct |
72 |
Correct |
44 ms |
74432 KB |
Output is correct |
73 |
Correct |
37 ms |
74428 KB |
Output is correct |
74 |
Correct |
37 ms |
74284 KB |
Output is correct |
75 |
Correct |
36 ms |
74432 KB |
Output is correct |
76 |
Correct |
37 ms |
74432 KB |
Output is correct |
77 |
Correct |
38 ms |
74420 KB |
Output is correct |
78 |
Correct |
38 ms |
74388 KB |
Output is correct |
79 |
Correct |
37 ms |
74388 KB |
Output is correct |
80 |
Correct |
72 ms |
74652 KB |
Output is correct |
81 |
Correct |
74 ms |
74748 KB |
Output is correct |
82 |
Correct |
81 ms |
74664 KB |
Output is correct |
83 |
Correct |
73 ms |
74692 KB |
Output is correct |
84 |
Correct |
1644 ms |
92052 KB |
Output is correct |
85 |
Correct |
1643 ms |
91800 KB |
Output is correct |
86 |
Correct |
1745 ms |
91800 KB |
Output is correct |
87 |
Correct |
1681 ms |
92052 KB |
Output is correct |
88 |
Correct |
2458 ms |
99760 KB |
Output is correct |
89 |
Correct |
2568 ms |
99776 KB |
Output is correct |
90 |
Correct |
1539 ms |
92152 KB |
Output is correct |
91 |
Correct |
1722 ms |
99736 KB |
Output is correct |
92 |
Correct |
1575 ms |
92128 KB |
Output is correct |
93 |
Correct |
1697 ms |
92052 KB |
Output is correct |
94 |
Correct |
1885 ms |
99964 KB |
Output is correct |
95 |
Correct |
1701 ms |
92148 KB |
Output is correct |
96 |
Correct |
1858 ms |
95708 KB |
Output is correct |
97 |
Correct |
1647 ms |
95948 KB |
Output is correct |