#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const ll INF=1e9+7;
const int LIM=25e4+7;
int tr[4*LIM], dp[LIM], N=1;
vector<int>V[LIM];
ll sum[LIM];
ll cnt(int l, int r) {
return sum[r]-(l?sum[l-1]:0);
}
void upd(int v, int x) {
v+=N;
while(v) {
tr[v]=max(tr[v], x);
v/=2;
}
}
int cnt2(int l, int r) {
if(l>r) return -INF;
l+=N; r+=N;
int ans=max(tr[l], tr[r]);
while(l/2!=r/2) {
if(l%2==0) ans=max(ans, tr[l+1]);
if(r%2==1) ans=max(ans, tr[r-1]);
l/=2; r/=2;
}
return ans;
}
int solve(vector<ll>T) {
int n=T.size();
rep(i, n+1) V[i].clear();
rep(i, n) {
sum[i]=T[i];
if(i) sum[i]+=sum[i-1];
dp[i]=-INF;
}
N=1;
while(N<n) N*=2;
rep(i, 2*N) tr[i]=-INF;
rep(i, n) {
for(auto j : V[i]) upd(j, dp[j]);
if(i==0) dp[i]=1;
else if(cnt(0, i-1)>T[i]) {
dp[i]=2;
int po=0, ko=i-1;
while(po<ko) {
int sr=(po+ko+1)/2;
if(cnt(sr, i-1)>T[i]) po=sr; else ko=sr-1;
}
dp[i]=max(dp[i], cnt2(0, po-1)+2);
}
if(cnt(i+1, n-1)>T[i]) {
int po=i+1, ko=n-1;
while(po<ko) {
int sr=(po+ko)/2;
if(cnt(i+1, sr)>T[i]) ko=sr; else po=sr+1;
}
V[po+1].pb(i);
}
}
int ans=max(1, dp[n-1]);
rep(i, n-1) if(cnt(i+1, n-1)>T[i]) ans=max(ans, dp[i]+1);
return ans;
}
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
int n;
cin >> n;
vector<ll>T(n);
rep(i, n) cin >> T[i];
int q;
cin >> q;
while(q--) {
ll x, y, a, b;
cin >> x >> y >> a >> b; --x; --b;
T[x]=y;
vector<ll>P;
while(a<=b) {
P.pb(T[a]);
++a;
}
cout << solve(P) << '\n';
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
3 ms |
6100 KB |
Output is correct |
3 |
Correct |
4 ms |
6100 KB |
Output is correct |
4 |
Correct |
3 ms |
6228 KB |
Output is correct |
5 |
Correct |
3 ms |
6100 KB |
Output is correct |
6 |
Correct |
3 ms |
6100 KB |
Output is correct |
7 |
Correct |
3 ms |
6100 KB |
Output is correct |
8 |
Correct |
3 ms |
6100 KB |
Output is correct |
9 |
Correct |
3 ms |
6228 KB |
Output is correct |
10 |
Correct |
3 ms |
6100 KB |
Output is correct |
11 |
Correct |
3 ms |
6124 KB |
Output is correct |
12 |
Correct |
3 ms |
6100 KB |
Output is correct |
13 |
Correct |
3 ms |
6100 KB |
Output is correct |
14 |
Correct |
3 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
6100 KB |
Output is correct |
16 |
Correct |
4 ms |
6220 KB |
Output is correct |
17 |
Correct |
4 ms |
6228 KB |
Output is correct |
18 |
Correct |
3 ms |
6228 KB |
Output is correct |
19 |
Correct |
3 ms |
6228 KB |
Output is correct |
20 |
Correct |
3 ms |
6100 KB |
Output is correct |
21 |
Correct |
3 ms |
6100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
3 ms |
6100 KB |
Output is correct |
3 |
Correct |
4 ms |
6100 KB |
Output is correct |
4 |
Correct |
3 ms |
6228 KB |
Output is correct |
5 |
Correct |
3 ms |
6100 KB |
Output is correct |
6 |
Correct |
3 ms |
6100 KB |
Output is correct |
7 |
Correct |
3 ms |
6100 KB |
Output is correct |
8 |
Correct |
3 ms |
6100 KB |
Output is correct |
9 |
Correct |
3 ms |
6228 KB |
Output is correct |
10 |
Correct |
3 ms |
6100 KB |
Output is correct |
11 |
Correct |
3 ms |
6124 KB |
Output is correct |
12 |
Correct |
3 ms |
6100 KB |
Output is correct |
13 |
Correct |
3 ms |
6100 KB |
Output is correct |
14 |
Correct |
3 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
6100 KB |
Output is correct |
16 |
Correct |
4 ms |
6220 KB |
Output is correct |
17 |
Correct |
4 ms |
6228 KB |
Output is correct |
18 |
Correct |
3 ms |
6228 KB |
Output is correct |
19 |
Correct |
3 ms |
6228 KB |
Output is correct |
20 |
Correct |
3 ms |
6100 KB |
Output is correct |
21 |
Correct |
3 ms |
6100 KB |
Output is correct |
22 |
Correct |
3 ms |
6228 KB |
Output is correct |
23 |
Correct |
3 ms |
6228 KB |
Output is correct |
24 |
Correct |
3 ms |
6228 KB |
Output is correct |
25 |
Correct |
4 ms |
6228 KB |
Output is correct |
26 |
Correct |
4 ms |
6356 KB |
Output is correct |
27 |
Correct |
4 ms |
6360 KB |
Output is correct |
28 |
Correct |
4 ms |
6228 KB |
Output is correct |
29 |
Correct |
4 ms |
6228 KB |
Output is correct |
30 |
Correct |
4 ms |
6328 KB |
Output is correct |
31 |
Correct |
4 ms |
6336 KB |
Output is correct |
32 |
Correct |
4 ms |
6228 KB |
Output is correct |
33 |
Correct |
4 ms |
6228 KB |
Output is correct |
34 |
Correct |
4 ms |
6228 KB |
Output is correct |
35 |
Correct |
4 ms |
6356 KB |
Output is correct |
36 |
Correct |
4 ms |
6228 KB |
Output is correct |
37 |
Correct |
4 ms |
6340 KB |
Output is correct |
38 |
Correct |
4 ms |
6228 KB |
Output is correct |
39 |
Correct |
3 ms |
6228 KB |
Output is correct |
40 |
Correct |
3 ms |
6228 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
3 ms |
6100 KB |
Output is correct |
3 |
Correct |
4 ms |
6100 KB |
Output is correct |
4 |
Correct |
3 ms |
6228 KB |
Output is correct |
5 |
Correct |
3 ms |
6100 KB |
Output is correct |
6 |
Correct |
3 ms |
6100 KB |
Output is correct |
7 |
Correct |
3 ms |
6100 KB |
Output is correct |
8 |
Correct |
3 ms |
6100 KB |
Output is correct |
9 |
Correct |
3 ms |
6228 KB |
Output is correct |
10 |
Correct |
3 ms |
6100 KB |
Output is correct |
11 |
Correct |
3 ms |
6124 KB |
Output is correct |
12 |
Correct |
3 ms |
6100 KB |
Output is correct |
13 |
Correct |
3 ms |
6100 KB |
Output is correct |
14 |
Correct |
3 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
6100 KB |
Output is correct |
16 |
Correct |
4 ms |
6220 KB |
Output is correct |
17 |
Correct |
4 ms |
6228 KB |
Output is correct |
18 |
Correct |
3 ms |
6228 KB |
Output is correct |
19 |
Correct |
3 ms |
6228 KB |
Output is correct |
20 |
Correct |
3 ms |
6100 KB |
Output is correct |
21 |
Correct |
3 ms |
6100 KB |
Output is correct |
22 |
Correct |
3 ms |
6228 KB |
Output is correct |
23 |
Correct |
3 ms |
6228 KB |
Output is correct |
24 |
Correct |
3 ms |
6228 KB |
Output is correct |
25 |
Correct |
4 ms |
6228 KB |
Output is correct |
26 |
Correct |
4 ms |
6356 KB |
Output is correct |
27 |
Correct |
4 ms |
6360 KB |
Output is correct |
28 |
Correct |
4 ms |
6228 KB |
Output is correct |
29 |
Correct |
4 ms |
6228 KB |
Output is correct |
30 |
Correct |
4 ms |
6328 KB |
Output is correct |
31 |
Correct |
4 ms |
6336 KB |
Output is correct |
32 |
Correct |
4 ms |
6228 KB |
Output is correct |
33 |
Correct |
4 ms |
6228 KB |
Output is correct |
34 |
Correct |
4 ms |
6228 KB |
Output is correct |
35 |
Correct |
4 ms |
6356 KB |
Output is correct |
36 |
Correct |
4 ms |
6228 KB |
Output is correct |
37 |
Correct |
4 ms |
6340 KB |
Output is correct |
38 |
Correct |
4 ms |
6228 KB |
Output is correct |
39 |
Correct |
3 ms |
6228 KB |
Output is correct |
40 |
Correct |
3 ms |
6228 KB |
Output is correct |
41 |
Correct |
19 ms |
7908 KB |
Output is correct |
42 |
Correct |
21 ms |
8148 KB |
Output is correct |
43 |
Correct |
24 ms |
8404 KB |
Output is correct |
44 |
Correct |
25 ms |
10232 KB |
Output is correct |
45 |
Correct |
77 ms |
17352 KB |
Output is correct |
46 |
Correct |
236 ms |
24072 KB |
Output is correct |
47 |
Correct |
175 ms |
20788 KB |
Output is correct |
48 |
Correct |
282 ms |
26224 KB |
Output is correct |
49 |
Correct |
338 ms |
27332 KB |
Output is correct |
50 |
Correct |
222 ms |
23772 KB |
Output is correct |
51 |
Correct |
211 ms |
24584 KB |
Output is correct |
52 |
Correct |
134 ms |
20792 KB |
Output is correct |
53 |
Correct |
290 ms |
25412 KB |
Output is correct |
54 |
Correct |
269 ms |
23676 KB |
Output is correct |
55 |
Correct |
226 ms |
26092 KB |
Output is correct |
56 |
Correct |
209 ms |
21032 KB |
Output is correct |
57 |
Correct |
126 ms |
17076 KB |
Output is correct |
58 |
Correct |
213 ms |
24136 KB |
Output is correct |
59 |
Correct |
74 ms |
19012 KB |
Output is correct |
60 |
Correct |
93 ms |
17208 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
266 ms |
7828 KB |
Output is correct |
3 |
Correct |
1628 ms |
8472 KB |
Output is correct |
4 |
Execution timed out |
4083 ms |
8960 KB |
Time limit exceeded |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
3 ms |
6100 KB |
Output is correct |
3 |
Correct |
255 ms |
8184 KB |
Output is correct |
4 |
Correct |
1648 ms |
8464 KB |
Output is correct |
5 |
Execution timed out |
4049 ms |
23100 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
6100 KB |
Output is correct |
2 |
Correct |
3 ms |
6100 KB |
Output is correct |
3 |
Correct |
4 ms |
6100 KB |
Output is correct |
4 |
Correct |
3 ms |
6228 KB |
Output is correct |
5 |
Correct |
3 ms |
6100 KB |
Output is correct |
6 |
Correct |
3 ms |
6100 KB |
Output is correct |
7 |
Correct |
3 ms |
6100 KB |
Output is correct |
8 |
Correct |
3 ms |
6100 KB |
Output is correct |
9 |
Correct |
3 ms |
6228 KB |
Output is correct |
10 |
Correct |
3 ms |
6100 KB |
Output is correct |
11 |
Correct |
3 ms |
6124 KB |
Output is correct |
12 |
Correct |
3 ms |
6100 KB |
Output is correct |
13 |
Correct |
3 ms |
6100 KB |
Output is correct |
14 |
Correct |
3 ms |
6228 KB |
Output is correct |
15 |
Correct |
3 ms |
6100 KB |
Output is correct |
16 |
Correct |
4 ms |
6220 KB |
Output is correct |
17 |
Correct |
4 ms |
6228 KB |
Output is correct |
18 |
Correct |
3 ms |
6228 KB |
Output is correct |
19 |
Correct |
3 ms |
6228 KB |
Output is correct |
20 |
Correct |
3 ms |
6100 KB |
Output is correct |
21 |
Correct |
3 ms |
6100 KB |
Output is correct |
22 |
Correct |
3 ms |
6228 KB |
Output is correct |
23 |
Correct |
3 ms |
6228 KB |
Output is correct |
24 |
Correct |
3 ms |
6228 KB |
Output is correct |
25 |
Correct |
4 ms |
6228 KB |
Output is correct |
26 |
Correct |
4 ms |
6356 KB |
Output is correct |
27 |
Correct |
4 ms |
6360 KB |
Output is correct |
28 |
Correct |
4 ms |
6228 KB |
Output is correct |
29 |
Correct |
4 ms |
6228 KB |
Output is correct |
30 |
Correct |
4 ms |
6328 KB |
Output is correct |
31 |
Correct |
4 ms |
6336 KB |
Output is correct |
32 |
Correct |
4 ms |
6228 KB |
Output is correct |
33 |
Correct |
4 ms |
6228 KB |
Output is correct |
34 |
Correct |
4 ms |
6228 KB |
Output is correct |
35 |
Correct |
4 ms |
6356 KB |
Output is correct |
36 |
Correct |
4 ms |
6228 KB |
Output is correct |
37 |
Correct |
4 ms |
6340 KB |
Output is correct |
38 |
Correct |
4 ms |
6228 KB |
Output is correct |
39 |
Correct |
3 ms |
6228 KB |
Output is correct |
40 |
Correct |
3 ms |
6228 KB |
Output is correct |
41 |
Correct |
19 ms |
7908 KB |
Output is correct |
42 |
Correct |
21 ms |
8148 KB |
Output is correct |
43 |
Correct |
24 ms |
8404 KB |
Output is correct |
44 |
Correct |
25 ms |
10232 KB |
Output is correct |
45 |
Correct |
77 ms |
17352 KB |
Output is correct |
46 |
Correct |
236 ms |
24072 KB |
Output is correct |
47 |
Correct |
175 ms |
20788 KB |
Output is correct |
48 |
Correct |
282 ms |
26224 KB |
Output is correct |
49 |
Correct |
338 ms |
27332 KB |
Output is correct |
50 |
Correct |
222 ms |
23772 KB |
Output is correct |
51 |
Correct |
211 ms |
24584 KB |
Output is correct |
52 |
Correct |
134 ms |
20792 KB |
Output is correct |
53 |
Correct |
290 ms |
25412 KB |
Output is correct |
54 |
Correct |
269 ms |
23676 KB |
Output is correct |
55 |
Correct |
226 ms |
26092 KB |
Output is correct |
56 |
Correct |
209 ms |
21032 KB |
Output is correct |
57 |
Correct |
126 ms |
17076 KB |
Output is correct |
58 |
Correct |
213 ms |
24136 KB |
Output is correct |
59 |
Correct |
74 ms |
19012 KB |
Output is correct |
60 |
Correct |
93 ms |
17208 KB |
Output is correct |
61 |
Correct |
3 ms |
6100 KB |
Output is correct |
62 |
Correct |
266 ms |
7828 KB |
Output is correct |
63 |
Correct |
1628 ms |
8472 KB |
Output is correct |
64 |
Execution timed out |
4083 ms |
8960 KB |
Time limit exceeded |
65 |
Halted |
0 ms |
0 KB |
- |