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2018南昌邀请赛网络赛 单调栈 I
Alice has a magic array. She suggests that the value of a interval is equal to the sum of the values in the interval, multiplied by the smallest value in the interval.Now she is planning to find the...原创 2019-10-31 20:13:42 · 148 阅读 · 0 评论 -
Transformation（线段树回顾）
Yuanfang is puzzled with the question below:There are n integers, a1, a2, …, an. The initial values of them are 0. There are four kinds of operations.Operation 1: Add c to each number between a...原创 2019-04-18 18:41:59 · 235 阅读 · 0 评论 -
E、小花梨的数组（线段树）
经典的线段树区间更新题目对于每次更新 分为除法标记和乘法标记如果乘法标记不为0那么我进行除法标记是将乘法标记减一即可代码#include<bits/stdc++.h>using namespace std;typedef long long ll;const long long mod=1000000007;vector<long long&g...原创 2019-05-31 18:34:42 · 173 阅读 · 0 评论