#include <bits/stdc++.h>
using namespace std;
long long N,Q,A;
int index1,index2;
const long long P=1e9;
long long arr[252525];
vector<long long> tree;
void init(int start,int end,int node)
{
if(start==end)
{
tree[node]=arr[start];
return;
}
init(start,(start+end)/2,node*2);
init((start+end)/2+1,end,node*2+1);
tree[node]=max(tree[node*2],tree[node*2+1]);
return;
}
void update(int start,int end,int node,int index)
{
if(start<=index && index<=end)
{
tree[node]=max(tree[node],arr[index]);
if(start==end)
return;
update(start,(start+end)/2,node*2,index);
update((start+end)/2+1,end,node*2+1,index);
}
return;
}
long long maximum(int start,int end,int left,int right,int node)
{
if(start>right || end<left)
return 0;
if(left<=start && end<=right)
return tree[node];
return max(maximum(start,(start+end)/2,left,right,node*2),maximum((start+end)/2+1,end,left,right,node*2+1));
}
void maximum_index1(int start,int end,int left,int right,int node,long long point)
{
if(index1!=1e6)
return;
if(right<start || end<left)
return;
if(left<=start && end<=right)
{
if(tree[node]>point)
{
if(start==end)
{
index1=start;
return;
}
maximum_index1(start,(start+end)/2,left,right,node*2,point);
maximum_index1((start+end)/2+1,end,left,right,node*2+1,point);
}
else
return;
}
maximum_index1(start,(start+end)/2,left,right,node*2,point);
maximum_index1((start+end)/2+1,end,left,right,node*2+1,point);
return;
}
void maximum_index2(int start,int end,int left,int right,int node,long long point)
{
if(index2!=-1e6)
return;
if(right<start || end<left)
return;
if(left<=start && end<=right)
{
if(tree[node]>point)
{
if(start==end)
{
index2=start;
return;
}
maximum_index2((start+end)/2+1,end,left,right,node*2+1,point);
maximum_index2(start,(start+end)/2,left,right,node*2,point);
}
else
return;
}
maximum_index2((start+end)/2+1,end,left,right,node*2+1,point);
maximum_index2(start,(start+end)/2,left,right,node*2,point);
return;
}
int main()
{
scanf("%lld%lld",&N,&A);
A--;
tree.resize(4*N);
for(int i=0;i<N;i++)
{
scanf("%lld",&arr[i]);
arr[i]*=P;
}
init(0,N-1,1);
scanf("%lld",&Q);
for(long long t=1;t<=Q;t++)
{
char type;
scanf(" %c",&type);
long long a,b;
scanf("%lld",&a);
a--;
int answer;
long long cur_max;
if(type=='E')
{
scanf("%lld",&b);
arr[a]=(N-b+1)*P+t;
update(0,N-1,1,a);
}
else
{
index1=1e6;
index2=-1e6;
if(A==0 || A==N-1)
answer=abs(A-a);
else if(A==a)
answer=0;
else if(A>a)
{
cur_max=maximum(0,N-1,a,A-1,1);
maximum_index1(0,N-1,A+1,N-1,1,cur_max);
index1=min((int)N,index1);
answer=index1-a-1;
//printf("%d %d %d %d\n",answer,a,A,index1);
}
else
{
cur_max=maximum(0,N-1,A+1,a,1);
maximum_index2(0,N-1,0,A-1,1,cur_max);
index2=max(-1,index2);
answer=a-index2-1;
//printf("%d %d %d %d\n",answer,index2,A,a);
}
printf("%d\n",answer);
}
}
return 0;
}
Compilation message
cake.cpp: In function 'int main()':
cake.cpp:102:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
102 | scanf("%lld%lld",&N,&A);
| ~~~~~^~~~~~~~~~~~~~~~~~
cake.cpp:107:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
107 | scanf("%lld",&arr[i]);
| ~~~~~^~~~~~~~~~~~~~~~
cake.cpp:111:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
111 | scanf("%lld",&Q);
| ~~~~~^~~~~~~~~~~
cake.cpp:115:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
115 | scanf(" %c",&type);
| ~~~~~^~~~~~~~~~~~~
cake.cpp:117:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
117 | scanf("%lld",&a);
| ~~~~~^~~~~~~~~~~
cake.cpp:123:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
123 | scanf("%lld",&b);
| ~~~~~^~~~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
204 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
150 ms |
588 KB |
Output isn't correct |
| 2 |
Correct |
143 ms |
588 KB |
Output is correct |
| 3 |
Incorrect |
150 ms |
588 KB |
Output isn't correct |
| 4 |
Correct |
159 ms |
588 KB |
Output is correct |
| 5 |
Incorrect |
159 ms |
1228 KB |
Output isn't correct |
| 6 |
Incorrect |
150 ms |
1228 KB |
Output isn't correct |
| 7 |
Incorrect |
150 ms |
1228 KB |
Output isn't correct |
| 8 |
Correct |
147 ms |
1228 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
94 ms |
4752 KB |
Output isn't correct |
| 2 |
Incorrect |
65 ms |
4628 KB |
Output isn't correct |
| 3 |
Incorrect |
57 ms |
4536 KB |
Output isn't correct |
| 4 |
Correct |
0 ms |
204 KB |
Output is correct |
| 5 |
Incorrect |
99 ms |
10628 KB |
Output isn't correct |
| 6 |
Incorrect |
99 ms |
10688 KB |
Output isn't correct |
| 7 |
Incorrect |
74 ms |
10436 KB |
Output isn't correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
23 ms |
500 KB |
Output isn't correct |
| 2 |
Incorrect |
28 ms |
592 KB |
Output isn't correct |
| 3 |
Incorrect |
50 ms |
2412 KB |
Output isn't correct |
| 4 |
Incorrect |
45 ms |
2452 KB |
Output isn't correct |
| 5 |
Incorrect |
61 ms |
612 KB |
Output isn't correct |
| 6 |
Incorrect |
87 ms |
3220 KB |
Output isn't correct |
| 7 |
Incorrect |
86 ms |
1092 KB |
Output isn't correct |
| 8 |
Incorrect |
78 ms |
4308 KB |
Output isn't correct |
| 9 |
Incorrect |
355 ms |
11596 KB |
Output isn't correct |
| 10 |
Incorrect |
201 ms |
1392 KB |
Output isn't correct |
| 11 |
Incorrect |
235 ms |
2332 KB |
Output isn't correct |
| 12 |
Incorrect |
321 ms |
9696 KB |
Output isn't correct |
| 13 |
Incorrect |
305 ms |
11920 KB |
Output isn't correct |
