先看一段代码: int main(void) { int *pI = new int; int *pArray = new int[10]; int size = *(pArray-1); delete pI; delete [] pArray; // delete是如何知道pArray数组大小的? return 0; } 看反编译后代码,没能直接找到答案,于是在网上搜索发现这样一篇文章:<Mismatching scalar and vector new and delete>.文章中说明了…
下压(LIFO)栈:可以动态调整数组大小的实现 import java.util.Iterator; public class ResizingArrayStack<Item> implements Iterable<Item> { private int N = 0; private Item[] a = (Item[]) new Object[1]; public boolean isEmpty() { return N == 0; } public int size() {…
Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all unique triplets in the array which gives the sum of zero. Note:Elements in a triplet (a,b,c) must be in non-descending order. (ie, a ≤ b ≤ c)The solutio…
这是一个实例: procedure TMainForm.Button1Click(Sender: TObject);var arr:array of array of string;begin setlength(arr,2,3); arr[1,2]:='this is a test'; setlength(arr,0,0); setlength(arr,4,5); showmessage(arr[1,2]); end; 声明一个二维数组的方法是用 array of array of…
这是一个实例: procedure TMainForm.Button1Click(Sender: TObject);var arr:array of array of string;begin setlength(arr,2,3); arr[1,2]:='this is a test'; setlength(arr,0,0); setlength(arr,4,5); showmessage(arr[1,2]); end; 声明一个二维数组的方法是用 array of array of…