#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define rep(n) rep1(i,n)
#define rep1(i,n) rep2(i,0,n)
#define rep2(i,a,b) for(int i=a; i<(b); ++i)
#define rep3(i,a,b) for(int i=a; i>=(b); --i)
#define pb push_back
#define pii pair<int,int>
#define inf 0x3f3f3f3f
#define all(a) a.begin(),a.end()
#define sz(a) ((int)a.size())
#define pow2(x) (1ll<<(x))
#ifdef i_am_noob
#define bug(...) cerr << "#" << __LINE__ << " " << #__VA_ARGS__ << "- ", _do(__VA_ARGS__)
template<typename T> void _do(T x){cerr << x << endl;}
template<typename T, typename ...S> void _do(T x, S ...y){cerr << x << ", ";_do(y...);}
#else
#define bug(...) 49
#endif
const int maxn=300005;
int n,x,a[maxn],q,cur;
vector<int> vec;
vector<pii> vecl,vecr;
signed main(){
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> n >> x;
x--;
rep(n) cin >> a[i];
rep(n) a[i]--;
vec.resize(min(n,10ll));
rep(n) if(a[i]>=n-10) vec[n-a[i]-1]=i;
rep3(i,x-1,0){
if(vecl.empty()||a[i]>vecl.back().first) vecl.pb({a[i],i});
}
rep2(i,x+1,n){
if(vecr.empty()||a[i]>vecr.back().first) vecr.pb({a[i],i});
}
vecl.pb({inf,-1}),vecr.pb({inf,n});
cur=n;
cin >> q;
while(q--){
char op;
cin >> op;
if(op=='E'){
int pos,val;
cin >> pos >> val;
pos--,val--;
if(pos==x) continue;
rep(val) a[vec[i]]++;
a[pos]=a[vec[val]]+1;
if(pos<x){
vector<pii> tmp;
for(int i=sz(vecl)-1; i>=0&&vecl[i].first>=a[pos]&&vecl[i].second!=pos; --i) vecl[i].first++;
while(sz(vecl)&&(vecl.back().second<=pos)){
if(vecl.back().first>a[pos]) tmp.pb(vecl.back());
vecl.pop_back();
}
if(vecl.empty()||(vecl.back().second>pos&&vecl.back().first<a[pos])) vecl.pb({a[pos],pos});
while(sz(tmp)) vecl.pb(tmp.back()),tmp.pop_back();
for(int i=sz(vecr)-1; i>=0&&vecr[i].first>=a[pos]; --i) vecr[i].first++;
}
else{
vector<pii> tmp;
for(int i=sz(vecr)-1; i>=0&&vecr[i].first>=a[pos]&&vecr[i].second!=pos; --i) vecr[i].first++;
while(sz(vecr)&&vecr.back().second>=pos){
if(vecr.back().first>a[pos]) tmp.pb(vecr.back());
vecr.pop_back();
}
if(vecr.empty()||(vecr.back().second<pos&&vecr.back().first<a[pos])) vecr.pb({a[pos],pos});
while(sz(tmp)) vecr.pb(tmp.back()),tmp.pop_back();
for(int i=sz(vecl)-1; i>=0&&vecl[i].first>=a[pos]; --i) vecl[i].first++;
}
cur++;
rep(sz(vec)) if(vec[i]==pos||i==sz(vec)-1){
vector<int> tmp;
while(sz(vec)>i) tmp.pb(vec.back()),vec.pop_back();
tmp.pop_back();
while(sz(tmp)) vec.pb(tmp.back()),tmp.pop_back();
break;
}
vector<int> tmp;
while(sz(vec)>val) tmp.pb(vec.back()),vec.pop_back();
vec.pb(pos);
while(sz(tmp)) vec.pb(tmp.back()),tmp.pop_back();
for(auto i: vecl) bug(i.first,i.second);
for(auto i: vecr) bug(i.first,i.second);
assert(sz(vec)==min(n,10ll));
//rep(sz(vec)-1) assert(a[vec[i]]>a[vec[i+1]]);
}
else{
int pos;
cin >> pos;
pos--;
if(pos==x){
cout << "0\n";
continue;
}
if(pos<x){
pii tmp={a[pos],pos};
pii p=*--upper_bound(all(vecl),tmp,[&](const pii& i,const pii& j){return i.second>j.second;});
pii q=*upper_bound(all(vecr),p);
cout << q.second-pos-1 << "\n";
}
else{
pii tmp={a[pos],pos};
pii p=*--upper_bound(all(vecr),tmp,[&](const pii& i,const pii& j){return i.second<j.second;});
pii q=*upper_bound(all(vecl),p);
cout << pos-q.second-1 << "\n";
}
}
}
}
Compilation message
cake.cpp: In function 'int main()':
cake.cpp:22:18: warning: statement has no effect [-Wunused-value]
22 | #define bug(...) 49
| ^~
cake.cpp:95:31: note: in expansion of macro 'bug'
95 | for(auto i: vecl) bug(i.first,i.second);
| ^~~
cake.cpp:95:22: warning: variable 'i' set but not used [-Wunused-but-set-variable]
95 | for(auto i: vecl) bug(i.first,i.second);
| ^
cake.cpp:22:18: warning: statement has no effect [-Wunused-value]
22 | #define bug(...) 49
| ^~
cake.cpp:96:31: note: in expansion of macro 'bug'
96 | for(auto i: vecr) bug(i.first,i.second);
| ^~~
cake.cpp:96:22: warning: variable 'i' set but not used [-Wunused-but-set-variable]
96 | for(auto i: vecr) bug(i.first,i.second);
| ^
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
204 KB |
Output is correct |
| 2 |
Correct |
1 ms |
204 KB |
Output is correct |
| 3 |
Correct |
1 ms |
204 KB |
Output is correct |
| 4 |
Incorrect |
2 ms |
332 KB |
Output isn't correct |
| 5 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
281 ms |
332 KB |
Output is correct |
| 2 |
Correct |
295 ms |
384 KB |
Output is correct |
| 3 |
Correct |
316 ms |
376 KB |
Output is correct |
| 4 |
Correct |
327 ms |
376 KB |
Output is correct |
| 5 |
Correct |
303 ms |
500 KB |
Output is correct |
| 6 |
Correct |
297 ms |
460 KB |
Output is correct |
| 7 |
Correct |
310 ms |
500 KB |
Output is correct |
| 8 |
Correct |
330 ms |
496 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
33 ms |
1612 KB |
Output is correct |
| 2 |
Correct |
32 ms |
1512 KB |
Output is correct |
| 3 |
Correct |
30 ms |
1472 KB |
Output is correct |
| 4 |
Correct |
1 ms |
204 KB |
Output is correct |
| 5 |
Correct |
48 ms |
2868 KB |
Output is correct |
| 6 |
Correct |
48 ms |
2864 KB |
Output is correct |
| 7 |
Correct |
54 ms |
2692 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
19 ms |
432 KB |
Output isn't correct |
| 2 |
Incorrect |
19 ms |
372 KB |
Output isn't correct |
| 3 |
Incorrect |
33 ms |
824 KB |
Output isn't correct |
| 4 |
Correct |
32 ms |
928 KB |
Output is correct |
| 5 |
Incorrect |
54 ms |
584 KB |
Output isn't correct |
| 6 |
Correct |
61 ms |
1160 KB |
Output is correct |
| 7 |
Correct |
74 ms |
784 KB |
Output is correct |
| 8 |
Correct |
127 ms |
1228 KB |
Output is correct |
| 9 |
Correct |
226 ms |
3916 KB |
Output is correct |
| 10 |
Incorrect |
178 ms |
1348 KB |
Output isn't correct |
| 11 |
Correct |
173 ms |
1788 KB |
Output is correct |
| 12 |
Correct |
206 ms |
3416 KB |
Output is correct |
| 13 |
Correct |
223 ms |
3872 KB |
Output is correct |
