#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!=-1)
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!=-1)
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=-1;
index2=-1;
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);
if(index1!=-1)
answer=index1-a;
else
answer=N-a;
answer--;
}
else
{
cur_max=maximum(0,N-1,A+1,a,1);
maximum_index2(0,N-1,0,A-1,1,cur_max);
if(index2!=-1)
answer=a-index2;
else
answer=a-1;
answer--;
}
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 |
Incorrect |
1 ms |
204 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
142 ms |
588 KB |
Output isn't correct |
| 2 |
Incorrect |
137 ms |
588 KB |
Output isn't correct |
| 3 |
Incorrect |
139 ms |
588 KB |
Output isn't correct |
| 4 |
Incorrect |
137 ms |
588 KB |
Output isn't correct |
| 5 |
Incorrect |
150 ms |
1228 KB |
Output isn't correct |
| 6 |
Incorrect |
155 ms |
1228 KB |
Output isn't correct |
| 7 |
Incorrect |
150 ms |
1228 KB |
Output isn't correct |
| 8 |
Incorrect |
147 ms |
1228 KB |
Output isn't correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
92 ms |
4676 KB |
Output isn't correct |
| 2 |
Incorrect |
68 ms |
4580 KB |
Output isn't correct |
| 3 |
Incorrect |
58 ms |
4556 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
204 KB |
Output isn't correct |
| 5 |
Incorrect |
102 ms |
10656 KB |
Output isn't correct |
| 6 |
Incorrect |
99 ms |
10712 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 |
460 KB |
Output isn't correct |
| 2 |
Incorrect |
26 ms |
612 KB |
Output isn't correct |
| 3 |
Incorrect |
50 ms |
2396 KB |
Output isn't correct |
| 4 |
Incorrect |
47 ms |
2444 KB |
Output isn't correct |
| 5 |
Incorrect |
63 ms |
604 KB |
Output isn't correct |
| 6 |
Incorrect |
91 ms |
3268 KB |
Output isn't correct |
| 7 |
Incorrect |
93 ms |
1120 KB |
Output isn't correct |
| 8 |
Incorrect |
73 ms |
4212 KB |
Output isn't correct |
| 9 |
Incorrect |
339 ms |
11652 KB |
Output isn't correct |
| 10 |
Incorrect |
207 ms |
1388 KB |
Output isn't correct |
| 11 |
Incorrect |
233 ms |
2372 KB |
Output isn't correct |
| 12 |
Incorrect |
318 ms |
9724 KB |
Output isn't correct |
| 13 |
Incorrect |
311 ms |
11812 KB |
Output isn't correct |
