记录编号 426817 评测结果 AAAAAAAAAA
题目名称 延绵的山峰 最终得分 100
用户昵称 GravatarkZime 是否通过 通过
代码语言 C++ 运行时间 0.108 s
提交时间 2017-07-19 11:32:28 内存使用 22.73 MiB
显示代码纯文本
# include <bits/stdc++.h>
# define MAXN 1000023
using namespace std;

char buf[1 << 18], *fs, *ft;
char ops[1 << 18], *opt = ops, *const opt_end = ops + (1 << 18);
 
inline char getc() { 
    return (fs == ft && (ft = (fs = buf) + fread(buf, 1, 1 << 18, stdin)), fs == ft) ? EOF : *fs++;
}
 
inline int gn() { 
    int k = 0, f = 1;
    char c = getc();
    for(; !isdigit(c); c = getc()) if(c == '-') f = -1;
    for(; isdigit(c); c = getc()) k = k * 10 + c - '0';
    return k * f;
}
 
inline void out() { 
    fwrite(ops, 1, opt - ops, stdout);
    opt = ops;
}
 
inline void out(int x, char c) { 
    static char *p = new char[21]();
    *(++p) = c;
    do { 
        *(++p) = x % 10 | 0x30;
        x /= 10;
    } while(x);
    while(*p) { 
        *(opt++) = *(p--);
        if(opt == opt_end) out();
    }
}

inline void out(char c) { 
    *(opt++) = c;
    if(opt == opt_end) out();
}

int a[MAXN], mx[MAXN << 2], M;

inline void build(int n) {
	for(M = 1; M + 1 <= n; M <<= 1);
	for(int i = M + 1; i <= M + n; i++) {
		mx[i] = gn();
	}
	for(int i = M; i >= 1; i--) {
		mx[i] = max(mx[i << 1], mx[i << 1 | 1]);
	}
}

inline int que(int l, int r) {
	int ans = 0;
	for(l += M - 1, r += M + 1; l ^ r ^ 1; l >>= 1, r >>= 1) {
		if(~l & 1) ans = max(ans, mx[l + 1]);
		if(r & 1) ans = max(ans, mx[r - 1]);
	}
	return ans;
}

int main() {
	freopen("climb.in","r",stdin);
	freopen("climb.out","w",stdout);
	int n = gn() + 1;
	build(n);
	int m = gn();
	for(int i = 1; i <= m; i++) {
		int l = gn() + 1, r = gn() + 1;
		out(que(l, r), '\n');
	}
	out();
}