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题目分析:维护一个不小于m的数的个数的后缀和数组,可以枚举序列起点,二分查找右端点序列最近的一个<k,m>序列。因为最近右端点是不减的,所以也可以用two-pointer在O(n)的时间复杂度内得到结果。 代码如下: 使用二分查找: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 ...
Two pointer.注意区间的处理。 #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> using namespace std; const int maxn=100000+100; char s[maxn]; int vis[1000+10]; int l=0,r=0,num=0; int n,ty=0; int Find(char t,int pos)//向右查找所需要的字符 { for(;...
We'll start with initializing our two pointers, let's name them 'low' and 'high'. low: this pointer will point to the index of the smallest element, in a sorted array it will be the first element of the array. high: this pointer will point to the index of the greatest element, in...
Two pointer.注意区间的处理。 #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> using namespace std; const int maxn=100000+100; char s[maxn]; int vis[1000+10]; int l=0,r=0,num=0; int n,ty=0; int Find(char t,int pos)//向右查找所需要的字符 { for(;...
This paper presents a two-pointer detection strategy to find detachable subassemblies very quickly. A summation operator and a list with two pointers are used to check the interferences between components in a minimum number of steps. Then, a ternary bees algorithm is proposed to identify new ...
Two Pointer Algorithm to Summary the Ranges Since the array is already sorted, we can start scanning from left to the right, then continuously jump the pointer to the furthest if the next numbers are the neighbors. We then can generate the ranges for two cases: the single value (disjoint)...
twopointer排序后从头到尾扫一遍就行了。 AC代码: #include<cstdio> #include<iostream> #include<algorithm> #include<queue> #include #include<vector> #include<set> #include<string> #include<cmath> #include<cstring> #define ll long long #define...
当s=1时,很显然这个直线是单调向上的,我们可以利用two pointer来优化就好了 复杂度O(n+m) 代码 #include <cstdio>#include<cmath>#include<cstring>#include<ctime>#include<iostream>#include<algorithm>#include<set>#include<vector>#include<sstream>#include<queue>#include<typeinfo>#include<fstream>#includ...
#include <stdio.h> //Macro for maximum number of characters in a string #define MAX 100 int main() { //declare string variables char str1[MAX] = { 0 }; char str2[MAX] = { 0 }; int loop; //loop counter int flag = 1; //declare & initialize pointer variables char* pStr1 =...