#include <bits/stdc++.h>
#define pb push_back
#define s second
#define f first
#define left (h<<1),l,(l + r)/2
#define right ((h<<1)|1),(l + r)/2 + 1,r
#define pii pair<int,int>
#define ll long long
#define int ll //?
using namespace std;
const int N = 1e5 + 5;
int a[N],t[4000005],n;
void updd(int h,int l,int r,int L,int R,int val){
if (r < L || R < l) return;
if (L <= l && r <= R){
t[h] += val;
return;
}
updd(left,L,R,val);
updd(right,L,R,val);
}
int get(int h,int l,int r,int idx){
if (l == r) return t[h];
if (idx > (l + r)/2) return t[h] + get(right,idx);
return t[h] + get(left,idx);
}
void upd(int k,int dl){
int l = k - 1,r = k;
if (l < 1 || r > n) return;
int x = a[l],y = a[r];
if (x > y) swap(x,y);
updd(1,1,1000000,x,y,dl);
}
signed main (){
ios_base::sync_with_stdio(0),cin.tie(NULL),cout.tie(NULL);
int q;
cin>>n>>q;
for (int i = 1; i <= n; i++){
cin >> a[i];
if (i > 1) upd(i,1);
}
while (q--){
int tp;
cin>>tp;
if (tp == 1){
int idx,val;
cin>>idx>>val;
upd(idx,-1);
upd(idx+1,-1);
a[idx] = val;
upd(idx,1);
upd(idx+1,1);
}else{
int x;
cin>>x;
cout<<get(1,1,1000000,x)<<endl;
}
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
4 ms |
16988 KB |
Output is correct |
3 |
Correct |
4 ms |
16988 KB |
Output is correct |
4 |
Correct |
4 ms |
16988 KB |
Output is correct |
5 |
Correct |
4 ms |
16988 KB |
Output is correct |
6 |
Correct |
4 ms |
16988 KB |
Output is correct |
7 |
Correct |
2 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
4 ms |
16988 KB |
Output is correct |
3 |
Correct |
4 ms |
16988 KB |
Output is correct |
4 |
Correct |
4 ms |
16988 KB |
Output is correct |
5 |
Correct |
4 ms |
16988 KB |
Output is correct |
6 |
Correct |
4 ms |
16988 KB |
Output is correct |
7 |
Correct |
2 ms |
348 KB |
Output is correct |
8 |
Correct |
136 ms |
8276 KB |
Output is correct |
9 |
Correct |
195 ms |
20032 KB |
Output is correct |
10 |
Correct |
177 ms |
20052 KB |
Output is correct |
11 |
Correct |
132 ms |
5984 KB |
Output is correct |
12 |
Correct |
168 ms |
11392 KB |
Output is correct |
13 |
Correct |
139 ms |
3156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
4440 KB |
Output is correct |
2 |
Correct |
4 ms |
16988 KB |
Output is correct |
3 |
Correct |
4 ms |
16988 KB |
Output is correct |
4 |
Correct |
4 ms |
16988 KB |
Output is correct |
5 |
Correct |
4 ms |
16988 KB |
Output is correct |
6 |
Correct |
4 ms |
16988 KB |
Output is correct |
7 |
Correct |
2 ms |
348 KB |
Output is correct |
8 |
Correct |
136 ms |
8276 KB |
Output is correct |
9 |
Correct |
195 ms |
20032 KB |
Output is correct |
10 |
Correct |
177 ms |
20052 KB |
Output is correct |
11 |
Correct |
132 ms |
5984 KB |
Output is correct |
12 |
Correct |
168 ms |
11392 KB |
Output is correct |
13 |
Correct |
139 ms |
3156 KB |
Output is correct |
14 |
Correct |
203 ms |
19796 KB |
Output is correct |
15 |
Correct |
203 ms |
19900 KB |
Output is correct |
16 |
Correct |
224 ms |
19796 KB |
Output is correct |
17 |
Correct |
190 ms |
19936 KB |
Output is correct |
18 |
Correct |
215 ms |
19956 KB |
Output is correct |