#include <bits/stdc++.h>
using namespace std;
const long long N = 2e5 + 5 ;
#define ll long long
#define endl '\n'
struct segmentTree {
int n;
vector<ll> sum, lz, sumB;
init(int _n, int b[]) {
n = _n;
sum.assign(4 * n + 6, 0);
lz.assign(4 * n + 6, 0);
sumB.assign(4 * n + 6, 0);
build(b, 1, 1, n);
}
void build(int b[], int i, int l, int r) {
if (l == r) {
sumB[i] = b[l];
return;
}
int m = (l + r) >> 1;
build(b, i << 1, l, m); build(b, i << 1 | 1, m + 1, r);
sumB[i] = sumB[i << 1] + sumB[i << 1 | 1];
}
void pushdown(int i) {
for(int j=i<<1; j<=(i<<1|1); ++j) {
sum[j] += lz[i] * sumB[j];
lz[j] += lz[i];
}
lz[i] = 0;
}
void upd(int i, int l, int r, int u, int v, ll delta) {
if (l > r || u > v || l > v || r < u) return;
if (l >= u && r <= v) {
sum[i] += delta * sumB[i];
lz[i] += delta;
return;
}
pushdown(i);
int m = (l + r) >> 1;
upd(i << 1, l, m, u, v, delta); upd(i << 1 | 1, m + 1, r, u, v, delta);
sum[i] = sum[i << 1] + sum[i << 1 | 1];
}
void upd(int u, int v, ll delta) {
upd(1, 1, n, u, v, delta);
}
ll get(int i, int l, int r, int u, int v) {
if (l > r || u > v || l > v || r < u) return 0;
if (l >= u && r <= v) return sum[i];
pushdown(i);
int m = (l + r) >> 1;
return get(i << 1, l, m, u, v) + get(i << 1 | 1, m + 1, r, u, v);
}
ll get(int u, int v) {
return get(1, 1, n, u, v);
}
};
int a[N] , b[N] ;
segmentTree st ;
int n , q ;
int getlast(int x)
{
int l = 1 , r = n , p = 0 ;
while(l<=r){
int md = (l+r)/2 ;
int y = st.get(md , md) ;
if(y<=x){
p = md ;
l = md+1 ;
}
else r = md-1 ;
}
return p ;
}
int getfirst(int x)
{
int l = 1 , r = n , p = n+1 ;
while(l<=r){
int md = (l+r)/2 ;
int y = st.get(md , md) ;
if(y>=x){
p = md ;
r = md-1 ;
}
else l = md+1 ;
}
return p ;
}
int main()
{
ios::sync_with_stdio(0), cin.tie(0),cout.tie(0) ;
cin>>n>>q ;
for(int i = 1 ; i<=n ; i++){
cin>>a[i] ;
b[i] = 1 ;
}
st.init(n , b) ;
sort(a+1 , a+n+1) ;
for(int i = 1 ; i<=n ; i++){
st.upd(i , i ,a[i]) ;
}
for(int i = 1 ; i<=n ; i++){
cout<<st.get(i , i)<<' ';
}
cout<<endl;
while(q--){
char c ; cin>>c ;
if(c=='F'){
int c , h ; cin>>c>>h ;
int l = getfirst(h) ;
int r = min(n , l+c-1) ;
int x = st.get(r , r) ;
int lr = getlast(x-1) ;
int rr = getlast(x) ;
int lefties = max(0 , lr - l+1) ;
int rl = (rr - (c - lefties) +1) ;
// upd [l , lr] , upd[rl , rr]
if(l<=lr){
st.upd(l , lr , 1) ;
}
if(rl<=rr){
st.upd(rl , rr , 1) ;
}
}
else{
int a , b ; cin>>a>>b ;
cout<<getlast(b) - getfirst(a)+1<<endl;
}
}
}
Compilation message
grow.cpp:13:5: error: ISO C++ forbids declaration of 'init' with no type [-fpermissive]
13 | init(int _n, int b[]) {
| ^~~~
grow.cpp: In member function 'int segmentTree::init(int, int*)':
grow.cpp:19:5: warning: no return statement in function returning non-void [-Wreturn-type]
19 | }
| ^
