#include<bits/stdc++.h>
using namespace std;
const int N = 2e5 + 5;
int n , q , a[N];
int T[1<<20] , S , A;
char B;
void upd(int id , int l = 0 , int r = n - 1 , int pos= 0){
if(id < l || id > r) return;
if(l == r){T[pos] = S; return;}
int mid = (l + r) >>1;
upd(id ,l , mid ,pos * 2 + 1); upd(id ,mid + 1 , r , pos * 2 + 2);
T[pos] = min(T[pos * 2 + 1] ,T[pos * 2 + 2]);
}
int f(int L , int R , int l = 0 , int r = n - 1 , int pos = 0){
if(R < l || r < L)return -2;
if(L <= l && r <= R){
if(T[pos] > S)return -2;
while(l < r){
int mid = (l + r) >>1;
if(T[pos * 2 + 1] <= S) r= mid , pos = pos * 2 + 1;
else pos = pos * 2 + 2 , l = mid+ 1;
}return l;
}
int mid = (l + r) >> 1;
int k = f(L , R , l , mid , pos * 2 + 1);
if(k != -2)return k;
return f(L , R , mid + 1 , r , pos * 2 + 2);
}
int main (){
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n >> q;
for(int i = 0; i < 4 * N; ++i) T[i] = 2e9;
while(q--){
cin >> B >> S >> A; --A;
if(B == 'M') upd(A);
else cout << f(A , n - 1)+1
}
}
Compilation message
deda.cpp: In function 'int main()':
deda.cpp:36:36: error: expected ';' before '}' token
36 | else cout << f(A , n - 1)+1
| ^
| ;
37 | }
| ~
