快读/输入输出流+\n仍然TLE求调

#include<bits/stdc++.h>
using namespace std;
const int N = 1e5 + 5;
const int mm = log2(N) + 10;
int n, m, l, r, f[N][mm];

inline int read()
{
	int x=0,f=1;char ch=getchar();
	while (ch<'0'||ch>'9'){if (ch=='-') f=-1;ch=getchar();}
	while (ch>='0'&&ch<='9'){x=x*10+ch-48;ch=getchar();}
	return x*f;
}

int main(){
	n = read(); m = read();
	
	for(int i = 1; i <= n; i++) f[i][0] = read();
	for(int j = 1; j <= log2(n); j++){
		for(int i = 1; i <= n - (1 << j) + 1; i++){
			//         [i,i+(1<<(j-1))-1],[i+(1<<(j-1)),j]
			f[i][j] = max(f[i][j - 1], f[i + (1 << (j - 1))][j - 1]);
		}
	}
	
	while(m--){
		cin >> l >> r;
		int k = log2(r - l + 1);
		//                    a + (1 << k) - 1=r
		cout << max(f[l][k], f[r - (1 << k) + 1][k]) << "\n";
	}
	return 0;
}