#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pll pair<ll,ll>
#define ff first
#define ss second
#define pb push_back
#define endl "\n"
mt19937_64 rnd;
const ll maxn=3e5+10;
const ll mod =1e9+7 ;
const ll base=3e18;
/// you will be the best but now you just are trash
/// goal=1/7;
struct tk
{
ll mx_all,mnc,mxc;
ll la_mn;
ll la_mx;
};
// val posnw;
// mx = mxnw;
tk st[4*maxn];
tk mer(tk a, tk b)
{
tk c;
if (a.mx_all==-base)
return b;
if (b.mx_all==-base)
return a;
c.mx_all=max(a.mx_all,b.mx_all);
c.mnc=min(a.mnc,b.mnc);
c.mxc=max(a.mxc,b.mxc);
c.la_mn=base;
c.la_mx=-base;
return c;
}
void build(ll id,ll left,ll right)
{
if (left==right)
{
st[id].mnc=base;
st[id].mxc=-base;
st[id].mx_all=-1;
st[id].la_mn=base;
st[id].la_mx=-base;
return ;
}
ll mid=(left+right)/2;
build(id*2,left,mid);
build(id*2+1,mid+1,right);
st[id]=mer(st[id*2],st[id*2+1]);
}
void dosth(ll id,ll left,ll right)
{
if (left==right)
return ;
st[id*2].mx_all=max(st[id*2].mx_all,max(st[id].la_mx-st[id*2].mnc,st[id*2].mxc-st[id].la_mn));
st[id*2+1].mx_all=max(st[id*2+1].mx_all,max(st[id].la_mx-st[id*2+1].mnc,st[id*2+1].mxc-st[id].la_mn));
st[id*2].la_mn=min(st[id*2].la_mn,st[id].la_mn);
st[id*2+1].la_mn=min(st[id*2+1].la_mn,st[id].la_mn);
st[id*2].la_mx=max(st[id*2].la_mx,st[id].la_mx);
st[id*2+1].la_mx=max(st[id*2+1].la_mx,st[id].la_mx);
st[id].la_mn=base;
st[id].la_mx=-base;
}
void update(ll id,ll left,ll right,ll x,ll diff)
{
if (x>right||x<left)
return ;
if (left==right)
{
if (diff==base)
{
st[id].mnc=base;
st[id].mxc=-base;
return ;
}
st[id].mnc=diff;
st[id].mxc=diff;
return ;
}
dosth(id,left,right);
ll mid=(left+right)/2;
update(id*2,left,mid,x,diff);
update(id*2+1,mid+1,right,x,diff);
st[id]=mer(st[id*2],st[id*2+1]);
}
void update_val(ll id,ll left,ll right,ll x,ll y,ll val)
{
if (x>right||y<left)
return ;
if (x<=left&&y>=right)
{
st[id].mx_all=max(st[id].mx_all,max(val-st[id].mnc,st[id].mxc-val));
st[id].la_mn=min(st[id].la_mn,val);
st[id].la_mx=max(st[id].la_mx,val);
return ;
}
dosth(id,left,right);
ll mid=(left+right)/2;
update_val(id*2,left,mid,x,y,val);
update_val(id*2+1,mid+1,right,x,y,val);
st[id]=mer(st[id*2],st[id*2+1]);
}
tk get(ll id,ll left,ll right,ll x,ll y)
{
tk c;
c.mx_all=-base;
if (x>right||y<left)
return c;
if (x<=left&&y>=right)
return st[id];
dosth(id,left,right);
ll mid=(left+right)/2;
return mer(get(id*2,left,mid,x,y),get(id*2+1,mid+1,right,x,y));
}
ll h[maxn];
ll a[maxn];
ll b[maxn];
ll ans[maxn];
vector<pll> p[maxn];
vector<pll> adj[maxn];
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
if (fopen("t.inp", "r"))
{
freopen("test.inp", "r", stdin);
freopen("test.out", "w", stdout);
}
ll n;
cin>>n ;
for (int i=1; i<=n; i++)
{
cin>>h[i]>>a[i]>>b[i];
}
ll q;
cin>> q;
for (int i=1; i<=q; i++)
{
ll l, r;
cin>> l>> r;
p[r].pb(make_pair(l,i));
}
build(1,1,n);
for (int i=1; i<=n; i++)
{
if (i+a[i]<=n) adj[i+a[i]].pb(make_pair(i,h[i]));
if (i+b[i]+1<=n) adj[i+b[i]+1].pb(make_pair(i,base));
for (auto p:adj[i])
{
update(1,1,n,p.ff,p.ss);
}
ll l=max(1ll,i-b[i]);
ll r=i-a[i];
if (r>=l)
{
update_val(1,1,n,l,r,h[i]);
}
for (auto h:p[i])
{
tk a=get(1,1,n,h.ff,i);
ans[h.ss]=a.mx_all;
}
}
for (int i=1;i<=q;i++)
{
cout <<ans[i]<<endl;
}
}
Compilation message
antennas.cpp: In function 'int main()':
antennas.cpp:135:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
135 | freopen("test.inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
antennas.cpp:136:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
136 | freopen("test.out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
9 ms |
14412 KB |
Output is correct |
3 |
Correct |
9 ms |
14412 KB |
Output is correct |
4 |
Correct |
9 ms |
14412 KB |
Output is correct |
5 |
Correct |
10 ms |
14412 KB |
Output is correct |
6 |
Correct |
9 ms |
14416 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
9 ms |
14412 KB |
Output is correct |
9 |
Correct |
9 ms |
14420 KB |
Output is correct |
10 |
Correct |
8 ms |
14412 KB |
Output is correct |
11 |
Correct |
8 ms |
14412 KB |
Output is correct |
12 |
Correct |
9 ms |
14492 KB |
Output is correct |
13 |
Correct |
10 ms |
14416 KB |
Output is correct |
14 |
Correct |
9 ms |
14412 KB |
Output is correct |
15 |
Correct |
8 ms |
14424 KB |
Output is correct |
16 |
Correct |
9 ms |
14460 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14424 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14428 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
9 ms |
14380 KB |
Output is correct |
23 |
Correct |
10 ms |
14444 KB |
Output is correct |
24 |
Correct |
11 ms |
14420 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
9 ms |
14412 KB |
Output is correct |
3 |
Correct |
9 ms |
14412 KB |
Output is correct |
4 |
Correct |
9 ms |
14412 KB |
Output is correct |
5 |
Correct |
10 ms |
14412 KB |
Output is correct |
6 |
Correct |
9 ms |
14416 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
9 ms |
14412 KB |
Output is correct |
9 |
Correct |
9 ms |
14420 KB |
Output is correct |
10 |
Correct |
8 ms |
14412 KB |
Output is correct |
11 |
Correct |
8 ms |
14412 KB |
Output is correct |
12 |
Correct |
9 ms |
14492 KB |
Output is correct |
13 |
Correct |
10 ms |
14416 KB |
Output is correct |
14 |
Correct |
9 ms |
14412 KB |
Output is correct |
15 |
Correct |
8 ms |
14424 KB |
Output is correct |
16 |
Correct |
9 ms |
14460 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14424 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14428 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
9 ms |
14380 KB |
Output is correct |
23 |
Correct |
10 ms |
14444 KB |
Output is correct |
24 |
Correct |
11 ms |
14420 KB |
Output is correct |
25 |
Correct |
112 ms |
21476 KB |
Output is correct |
26 |
Correct |
23 ms |
15436 KB |
Output is correct |
27 |
Correct |
169 ms |
24544 KB |
Output is correct |
28 |
Correct |
179 ms |
24600 KB |
Output is correct |
29 |
Correct |
112 ms |
21524 KB |
Output is correct |
30 |
Correct |
120 ms |
21220 KB |
Output is correct |
31 |
Correct |
129 ms |
23308 KB |
Output is correct |
32 |
Correct |
171 ms |
24584 KB |
Output is correct |
33 |
Correct |
151 ms |
23964 KB |
Output is correct |
34 |
Correct |
92 ms |
19412 KB |
Output is correct |
35 |
Correct |
187 ms |
24404 KB |
Output is correct |
36 |
Correct |
182 ms |
24612 KB |
Output is correct |
37 |
Correct |
101 ms |
19908 KB |
Output is correct |
38 |
Correct |
168 ms |
23644 KB |
Output is correct |
39 |
Correct |
42 ms |
15816 KB |
Output is correct |
40 |
Correct |
188 ms |
23636 KB |
Output is correct |
41 |
Correct |
162 ms |
21244 KB |
Output is correct |
42 |
Correct |
175 ms |
23752 KB |
Output is correct |
43 |
Correct |
62 ms |
17604 KB |
Output is correct |
44 |
Correct |
168 ms |
23704 KB |
Output is correct |
45 |
Correct |
47 ms |
16192 KB |
Output is correct |
46 |
Correct |
189 ms |
23716 KB |
Output is correct |
47 |
Correct |
52 ms |
16932 KB |
Output is correct |
48 |
Correct |
176 ms |
23720 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
356 ms |
46812 KB |
Output is correct |
2 |
Correct |
376 ms |
48224 KB |
Output is correct |
3 |
Correct |
266 ms |
44180 KB |
Output is correct |
4 |
Correct |
403 ms |
48136 KB |
Output is correct |
5 |
Correct |
150 ms |
30680 KB |
Output is correct |
6 |
Correct |
436 ms |
48112 KB |
Output is correct |
7 |
Correct |
353 ms |
46380 KB |
Output is correct |
8 |
Correct |
423 ms |
48104 KB |
Output is correct |
9 |
Correct |
46 ms |
19012 KB |
Output is correct |
10 |
Correct |
427 ms |
48200 KB |
Output is correct |
11 |
Correct |
215 ms |
32820 KB |
Output is correct |
12 |
Correct |
384 ms |
48204 KB |
Output is correct |
13 |
Correct |
287 ms |
47464 KB |
Output is correct |
14 |
Correct |
254 ms |
47432 KB |
Output is correct |
15 |
Correct |
247 ms |
47508 KB |
Output is correct |
16 |
Correct |
220 ms |
48444 KB |
Output is correct |
17 |
Correct |
273 ms |
48288 KB |
Output is correct |
18 |
Correct |
242 ms |
48228 KB |
Output is correct |
19 |
Correct |
259 ms |
47548 KB |
Output is correct |
20 |
Correct |
248 ms |
47696 KB |
Output is correct |
21 |
Correct |
237 ms |
46908 KB |
Output is correct |
22 |
Correct |
247 ms |
47184 KB |
Output is correct |
23 |
Correct |
259 ms |
47432 KB |
Output is correct |
24 |
Correct |
223 ms |
48000 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
9 ms |
14412 KB |
Output is correct |
3 |
Correct |
9 ms |
14412 KB |
Output is correct |
4 |
Correct |
9 ms |
14412 KB |
Output is correct |
5 |
Correct |
10 ms |
14412 KB |
Output is correct |
6 |
Correct |
9 ms |
14416 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
9 ms |
14412 KB |
Output is correct |
9 |
Correct |
9 ms |
14420 KB |
Output is correct |
10 |
Correct |
8 ms |
14412 KB |
Output is correct |
11 |
Correct |
8 ms |
14412 KB |
Output is correct |
12 |
Correct |
9 ms |
14492 KB |
Output is correct |
13 |
Correct |
10 ms |
14416 KB |
Output is correct |
14 |
Correct |
9 ms |
14412 KB |
Output is correct |
15 |
Correct |
8 ms |
14424 KB |
Output is correct |
16 |
Correct |
9 ms |
14460 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14424 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14428 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
9 ms |
14380 KB |
Output is correct |
23 |
Correct |
10 ms |
14444 KB |
Output is correct |
24 |
Correct |
11 ms |
14420 KB |
Output is correct |
25 |
Correct |
112 ms |
21476 KB |
Output is correct |
26 |
Correct |
23 ms |
15436 KB |
Output is correct |
27 |
Correct |
169 ms |
24544 KB |
Output is correct |
28 |
Correct |
179 ms |
24600 KB |
Output is correct |
29 |
Correct |
112 ms |
21524 KB |
Output is correct |
30 |
Correct |
120 ms |
21220 KB |
Output is correct |
31 |
Correct |
129 ms |
23308 KB |
Output is correct |
32 |
Correct |
171 ms |
24584 KB |
Output is correct |
33 |
Correct |
151 ms |
23964 KB |
Output is correct |
34 |
Correct |
92 ms |
19412 KB |
Output is correct |
35 |
Correct |
187 ms |
24404 KB |
Output is correct |
36 |
Correct |
182 ms |
24612 KB |
Output is correct |
37 |
Correct |
101 ms |
19908 KB |
Output is correct |
38 |
Correct |
168 ms |
23644 KB |
Output is correct |
39 |
Correct |
42 ms |
15816 KB |
Output is correct |
40 |
Correct |
188 ms |
23636 KB |
Output is correct |
41 |
Correct |
162 ms |
21244 KB |
Output is correct |
42 |
Correct |
175 ms |
23752 KB |
Output is correct |
43 |
Correct |
62 ms |
17604 KB |
Output is correct |
44 |
Correct |
168 ms |
23704 KB |
Output is correct |
45 |
Correct |
47 ms |
16192 KB |
Output is correct |
46 |
Correct |
189 ms |
23716 KB |
Output is correct |
47 |
Correct |
52 ms |
16932 KB |
Output is correct |
48 |
Correct |
176 ms |
23720 KB |
Output is correct |
49 |
Correct |
356 ms |
46812 KB |
Output is correct |
50 |
Correct |
376 ms |
48224 KB |
Output is correct |
51 |
Correct |
266 ms |
44180 KB |
Output is correct |
52 |
Correct |
403 ms |
48136 KB |
Output is correct |
53 |
Correct |
150 ms |
30680 KB |
Output is correct |
54 |
Correct |
436 ms |
48112 KB |
Output is correct |
55 |
Correct |
353 ms |
46380 KB |
Output is correct |
56 |
Correct |
423 ms |
48104 KB |
Output is correct |
57 |
Correct |
46 ms |
19012 KB |
Output is correct |
58 |
Correct |
427 ms |
48200 KB |
Output is correct |
59 |
Correct |
215 ms |
32820 KB |
Output is correct |
60 |
Correct |
384 ms |
48204 KB |
Output is correct |
61 |
Correct |
287 ms |
47464 KB |
Output is correct |
62 |
Correct |
254 ms |
47432 KB |
Output is correct |
63 |
Correct |
247 ms |
47508 KB |
Output is correct |
64 |
Correct |
220 ms |
48444 KB |
Output is correct |
65 |
Correct |
273 ms |
48288 KB |
Output is correct |
66 |
Correct |
242 ms |
48228 KB |
Output is correct |
67 |
Correct |
259 ms |
47548 KB |
Output is correct |
68 |
Correct |
248 ms |
47696 KB |
Output is correct |
69 |
Correct |
237 ms |
46908 KB |
Output is correct |
70 |
Correct |
247 ms |
47184 KB |
Output is correct |
71 |
Correct |
259 ms |
47432 KB |
Output is correct |
72 |
Correct |
223 ms |
48000 KB |
Output is correct |
73 |
Correct |
650 ms |
55356 KB |
Output is correct |
74 |
Correct |
440 ms |
49048 KB |
Output is correct |
75 |
Correct |
595 ms |
55236 KB |
Output is correct |
76 |
Correct |
807 ms |
59536 KB |
Output is correct |
77 |
Correct |
438 ms |
38616 KB |
Output is correct |
78 |
Correct |
660 ms |
55764 KB |
Output is correct |
79 |
Correct |
691 ms |
57580 KB |
Output is correct |
80 |
Correct |
782 ms |
59448 KB |
Output is correct |
81 |
Correct |
347 ms |
29200 KB |
Output is correct |
82 |
Correct |
555 ms |
53720 KB |
Output is correct |
83 |
Correct |
544 ms |
43928 KB |
Output is correct |
84 |
Correct |
705 ms |
59480 KB |
Output is correct |
85 |
Correct |
487 ms |
53396 KB |
Output is correct |
86 |
Correct |
639 ms |
57428 KB |
Output is correct |
87 |
Correct |
306 ms |
49084 KB |
Output is correct |
88 |
Correct |
600 ms |
58408 KB |
Output is correct |
89 |
Correct |
551 ms |
55860 KB |
Output is correct |
90 |
Correct |
610 ms |
58336 KB |
Output is correct |
91 |
Correct |
379 ms |
51184 KB |
Output is correct |
92 |
Correct |
599 ms |
57840 KB |
Output is correct |
93 |
Correct |
366 ms |
48604 KB |
Output is correct |
94 |
Correct |
601 ms |
57292 KB |
Output is correct |
95 |
Correct |
360 ms |
50108 KB |
Output is correct |
96 |
Correct |
647 ms |
57876 KB |
Output is correct |