// Judges with GCC >= 12 only needs Ofast
// #pragma GCC optimize("O3,no-stack-protector,fast-math,unroll-loops,tree-vectorize")
// MLE optimization
// #pragma GCC optimize("conserve-stack")
// Old judges
// #pragma GCC target("sse4.2,popcnt,lzcnt,abm,mmx,fma,bmi,bmi2")
// New judges. Test with assert(__builtin_cpu_supports("avx2"));
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma,tune=native")
// Atcoder
// #pragma GCC target("avx2,popcnt,lzcnt,abm,bmi,bmi2,fma")
#include<bits/stdc++.h>
using namespace std;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
uniform_real_distribution<> pp(0.0,1.0);
#define int long long
#define ld long double
#define pii pair<int,int>
#define piii pair<int,pii>
#define fi first
#define se second
const int inf=1e18;
const int mod=998244353;
const int mod2=1e9+7;
const int maxn=250005;
const int bl=400;
const int maxs=650;
const int maxm=200005;
const int maxq=500005;
const int maxl=65;
const int maxa=1000005;
int power(int a,int n){
int res=1;
while(n){
if(n&1) res=res*a%mod;
a=a*a%mod;n>>=1;
}
return res;
}
void solve(){
int n;cin >> n;
vector<int> L(n,0),nxt(n,0),f(n,0);
vector<pii> jmp(n);
for(int i=0;i<n;i++) cin >> L[i];
auto cal_f = [&](int i){
int sum=0,j=i-1,st=max(0LL,i-maxl);
while(j>=st && sum<=max(L[i],L[j])) sum+=L[j--];
f[i]=(j>=st?j:-1);
};
auto cal_nxt = [&](int i){
nxt[i]=i+1;
while(nxt[i]<n && f[nxt[i]]<i) nxt[i]++;
};
auto build_jmp = [&](int x){
for(int i=min(n,(x+1)*bl)-1;i>=x*bl;i--){
int cur=nxt[i];
if(cur<n && cur/bl==x) jmp[i]=jmp[cur],jmp[i].se++;
else jmp[i]={cur,1};
}
};
for(int i=0;i<n;i++) cal_f(i);
for(int i=0;i<n;i++) cal_nxt(i);
for(int i=0;i<=(n-1)/bl;i++) build_jmp(i);
auto update = [&](int x,int y){
L[--x]=y;
int st=max(x-maxl,0LL),en=min(x+maxl,n-1);
for(int i=x;i<=min(x+maxl,n-1);i++) cal_f(i);
for(int i=st;i<=en;i++) cal_nxt(i);
build_jmp(en/bl);
if(en/bl!=st/bl) build_jmp(st/bl);
};
auto query = [&](int l,int r){
if(l>r) return -inf;
int cnt=0;
while(nxt[l]<=r){
if(jmp[l].fi<=r) cnt+=jmp[l].se,l=jmp[l].fi;
else cnt++,l=nxt[l];
}
return cnt;
};
auto cal = [&](int l,int r){
r--;
int lt=l,sum=0;
while(lt<n && sum<=L[lt]) sum+=L[lt++];
int rt=r;sum=0;
while(rt>=0 && sum<=L[rt]) sum+=L[rt--];
int res=1;
res=max(res,query(l,r)*2+1);
res=max(res,max(query(lt,r),query(l,rt))*2+2);
res=max(res,query(lt,rt)*2+3);
return res;
};
int q;cin >> q;
for(int i=1;i<=q;i++){
int x,y,a,b;cin >> x >> y >> a >> b;
update(x,y);
cout << cal(a,b) << '\n';
}
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(NULL);cout.tie(NULL);
int test=1;//cin >> test;
while(test--) solve();
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
324 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
324 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
336 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
420 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
324 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
336 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
420 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
28 ms |
10668 KB |
Output is correct |
42 |
Correct |
29 ms |
12236 KB |
Output is correct |
43 |
Correct |
28 ms |
12156 KB |
Output is correct |
44 |
Correct |
24 ms |
8652 KB |
Output is correct |
45 |
Correct |
34 ms |
12404 KB |
Output is correct |
46 |
Correct |
37 ms |
11512 KB |
Output is correct |
47 |
Correct |
25 ms |
8980 KB |
Output is correct |
48 |
Correct |
37 ms |
11772 KB |
Output is correct |
49 |
Correct |
37 ms |
11600 KB |
Output is correct |
50 |
Correct |
37 ms |
11468 KB |
Output is correct |
51 |
Correct |
44 ms |
11516 KB |
Output is correct |
52 |
Correct |
25 ms |
9484 KB |
Output is correct |
53 |
Correct |
33 ms |
12416 KB |
Output is correct |
54 |
Correct |
28 ms |
11384 KB |
Output is correct |
55 |
Correct |
23 ms |
11396 KB |
Output is correct |
56 |
Correct |
31 ms |
11392 KB |
Output is correct |
57 |
Correct |
24 ms |
11404 KB |
Output is correct |
58 |
Correct |
32 ms |
11384 KB |
Output is correct |
59 |
Correct |
32 ms |
12396 KB |
Output is correct |
60 |
Correct |
31 ms |
12524 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
187 ms |
10600 KB |
Output is correct |
3 |
Correct |
221 ms |
13900 KB |
Output is correct |
4 |
Correct |
200 ms |
13676 KB |
Output is correct |
5 |
Correct |
264 ms |
13900 KB |
Output is correct |
6 |
Correct |
684 ms |
13208 KB |
Output is correct |
7 |
Correct |
684 ms |
13396 KB |
Output is correct |
8 |
Correct |
658 ms |
13200 KB |
Output is correct |
9 |
Correct |
711 ms |
13056 KB |
Output is correct |
10 |
Correct |
488 ms |
10992 KB |
Output is correct |
11 |
Correct |
667 ms |
14308 KB |
Output is correct |
12 |
Correct |
629 ms |
13044 KB |
Output is correct |
13 |
Correct |
517 ms |
12996 KB |
Output is correct |
14 |
Correct |
535 ms |
13004 KB |
Output is correct |
15 |
Correct |
622 ms |
13040 KB |
Output is correct |
16 |
Correct |
637 ms |
12924 KB |
Output is correct |
17 |
Correct |
268 ms |
14060 KB |
Output is correct |
18 |
Correct |
314 ms |
14300 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
212 KB |
Output is correct |
3 |
Correct |
169 ms |
12056 KB |
Output is correct |
4 |
Correct |
204 ms |
12868 KB |
Output is correct |
5 |
Correct |
222 ms |
12780 KB |
Output is correct |
6 |
Correct |
502 ms |
12692 KB |
Output is correct |
7 |
Correct |
594 ms |
12792 KB |
Output is correct |
8 |
Correct |
638 ms |
12536 KB |
Output is correct |
9 |
Correct |
575 ms |
12704 KB |
Output is correct |
10 |
Correct |
613 ms |
13388 KB |
Output is correct |
11 |
Correct |
633 ms |
12448 KB |
Output is correct |
12 |
Correct |
608 ms |
12476 KB |
Output is correct |
13 |
Correct |
665 ms |
12528 KB |
Output is correct |
14 |
Correct |
621 ms |
12364 KB |
Output is correct |
15 |
Correct |
597 ms |
12684 KB |
Output is correct |
16 |
Correct |
259 ms |
12980 KB |
Output is correct |
17 |
Correct |
316 ms |
13108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
324 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
212 KB |
Output is correct |
5 |
Correct |
1 ms |
212 KB |
Output is correct |
6 |
Correct |
1 ms |
212 KB |
Output is correct |
7 |
Correct |
1 ms |
328 KB |
Output is correct |
8 |
Correct |
1 ms |
212 KB |
Output is correct |
9 |
Correct |
1 ms |
320 KB |
Output is correct |
10 |
Correct |
1 ms |
212 KB |
Output is correct |
11 |
Correct |
1 ms |
324 KB |
Output is correct |
12 |
Correct |
1 ms |
212 KB |
Output is correct |
13 |
Correct |
1 ms |
324 KB |
Output is correct |
14 |
Correct |
1 ms |
212 KB |
Output is correct |
15 |
Correct |
1 ms |
212 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
212 KB |
Output is correct |
18 |
Correct |
1 ms |
212 KB |
Output is correct |
19 |
Correct |
1 ms |
212 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
336 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
1 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
420 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
28 ms |
10668 KB |
Output is correct |
42 |
Correct |
29 ms |
12236 KB |
Output is correct |
43 |
Correct |
28 ms |
12156 KB |
Output is correct |
44 |
Correct |
24 ms |
8652 KB |
Output is correct |
45 |
Correct |
34 ms |
12404 KB |
Output is correct |
46 |
Correct |
37 ms |
11512 KB |
Output is correct |
47 |
Correct |
25 ms |
8980 KB |
Output is correct |
48 |
Correct |
37 ms |
11772 KB |
Output is correct |
49 |
Correct |
37 ms |
11600 KB |
Output is correct |
50 |
Correct |
37 ms |
11468 KB |
Output is correct |
51 |
Correct |
44 ms |
11516 KB |
Output is correct |
52 |
Correct |
25 ms |
9484 KB |
Output is correct |
53 |
Correct |
33 ms |
12416 KB |
Output is correct |
54 |
Correct |
28 ms |
11384 KB |
Output is correct |
55 |
Correct |
23 ms |
11396 KB |
Output is correct |
56 |
Correct |
31 ms |
11392 KB |
Output is correct |
57 |
Correct |
24 ms |
11404 KB |
Output is correct |
58 |
Correct |
32 ms |
11384 KB |
Output is correct |
59 |
Correct |
32 ms |
12396 KB |
Output is correct |
60 |
Correct |
31 ms |
12524 KB |
Output is correct |
61 |
Correct |
1 ms |
212 KB |
Output is correct |
62 |
Correct |
187 ms |
10600 KB |
Output is correct |
63 |
Correct |
221 ms |
13900 KB |
Output is correct |
64 |
Correct |
200 ms |
13676 KB |
Output is correct |
65 |
Correct |
264 ms |
13900 KB |
Output is correct |
66 |
Correct |
684 ms |
13208 KB |
Output is correct |
67 |
Correct |
684 ms |
13396 KB |
Output is correct |
68 |
Correct |
658 ms |
13200 KB |
Output is correct |
69 |
Correct |
711 ms |
13056 KB |
Output is correct |
70 |
Correct |
488 ms |
10992 KB |
Output is correct |
71 |
Correct |
667 ms |
14308 KB |
Output is correct |
72 |
Correct |
629 ms |
13044 KB |
Output is correct |
73 |
Correct |
517 ms |
12996 KB |
Output is correct |
74 |
Correct |
535 ms |
13004 KB |
Output is correct |
75 |
Correct |
622 ms |
13040 KB |
Output is correct |
76 |
Correct |
637 ms |
12924 KB |
Output is correct |
77 |
Correct |
268 ms |
14060 KB |
Output is correct |
78 |
Correct |
314 ms |
14300 KB |
Output is correct |
79 |
Correct |
1 ms |
212 KB |
Output is correct |
80 |
Correct |
1 ms |
212 KB |
Output is correct |
81 |
Correct |
169 ms |
12056 KB |
Output is correct |
82 |
Correct |
204 ms |
12868 KB |
Output is correct |
83 |
Correct |
222 ms |
12780 KB |
Output is correct |
84 |
Correct |
502 ms |
12692 KB |
Output is correct |
85 |
Correct |
594 ms |
12792 KB |
Output is correct |
86 |
Correct |
638 ms |
12536 KB |
Output is correct |
87 |
Correct |
575 ms |
12704 KB |
Output is correct |
88 |
Correct |
613 ms |
13388 KB |
Output is correct |
89 |
Correct |
633 ms |
12448 KB |
Output is correct |
90 |
Correct |
608 ms |
12476 KB |
Output is correct |
91 |
Correct |
665 ms |
12528 KB |
Output is correct |
92 |
Correct |
621 ms |
12364 KB |
Output is correct |
93 |
Correct |
597 ms |
12684 KB |
Output is correct |
94 |
Correct |
259 ms |
12980 KB |
Output is correct |
95 |
Correct |
316 ms |
13108 KB |
Output is correct |
96 |
Correct |
161 ms |
10340 KB |
Output is correct |
97 |
Correct |
231 ms |
13792 KB |
Output is correct |
98 |
Correct |
227 ms |
13944 KB |
Output is correct |
99 |
Correct |
709 ms |
13248 KB |
Output is correct |
100 |
Correct |
671 ms |
13308 KB |
Output is correct |
101 |
Correct |
622 ms |
13164 KB |
Output is correct |
102 |
Correct |
676 ms |
13052 KB |
Output is correct |
103 |
Correct |
610 ms |
14284 KB |
Output is correct |
104 |
Correct |
601 ms |
13020 KB |
Output is correct |
105 |
Correct |
590 ms |
12920 KB |
Output is correct |
106 |
Correct |
605 ms |
13000 KB |
Output is correct |
107 |
Correct |
617 ms |
13028 KB |
Output is correct |
108 |
Correct |
639 ms |
13112 KB |
Output is correct |
109 |
Correct |
266 ms |
14076 KB |
Output is correct |
110 |
Correct |
313 ms |
14296 KB |
Output is correct |