Stack is quite simple. Many computer systems have stacks built into their circuitry. They also have machine-level instructions to operate the hardware stack. Stack is(73)in computer systems.A．uselessB．not importantC．simple but importantD．too simple to be useful
Stack is quite simple. Many computer systems have stacks built into their circuitry. They also have machine-level instructions to operate the hardware stack. Stack is(73)in computer systems.
A．useless
B．not important
C．simple but important
D．too simple to be useful
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阅读以下说明C++代码，将应填入(n)处的字句写在对应栏内。[说明]以下程序的功能是实现堆栈的一些基本操作。堆栈类stack共有三个成员函数：empty判断堆栈是否为空；push进行人栈操作；pop进行出栈操作。[C++程序]include "stdafx. h"include ＜iostream, h＞eonst int maxsize = 6;class stack {float data[ maxsize];int top;public:stuck(void);～ stack(void);bool empty(void);void push(float a);float pop(void);};stack: :stack(void){ top =0;cout ＜ ＜ "stack initialized." ＜ ＜ endl;}stack:: ～stack(void) {cout ＜ ＜" stack destoryed." ＜ ＜ endl;bool stack:: empty (void) {return (1);void stack: :push(float a)if(top= =maxsize) {cout ＜ ＜ "Stack is full!" ＜ ＜ endl;return;data[top] =a;(2);}float stack:: pop (void){ if((3)){cout＜ ＜ "Stack is undcrflow !" ＜ ＜ endl;return 0;(4);return (5);}void main( ){ stack s;coat ＜ ＜ "now push the data:";for(inti=l;i =maxsize;i+ +) {cout＜ ＜i＜ ＜" ";s. push(i);}coat ＜ ＜ endl;cout＜ ＜ "now pop the data:";for(i = 1 ;i ＜ = maxsize ;i + + )cout＜ ＜s. pop()＜ ＜" ";}
有如下程序: nclude using namespace std; class Stack{ 有如下程序： #nclude＜iostremn＞ using namespace std; class Stack{ public: Stack(unsigned n=10:size(n){rep_=new int[size];top=O;} Stack(Stacks):size(s.size) { rep_=new int[size]; for(int i=0;i＜size;i++)rep_[i]=s.rep_[i]; top=s.top; } ～Stack(){delete[]rep_;} void push(int a){rep_[top]=a; top++;} int opo(){--top;return rep_[top];} bool is Empty()const{return top==O;} pavate: int*rep_; unsigned size,top; }; int main() { Stack s1; for(int i=1;i＜5;i++) s1.push(i); Stack s2(s1); for(i=1;i＜3;i++) cout＜＜s2.pop()＜＜','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0； } 执行上面程序的输出是A．4，3，2，1B．4，3，6，7，2，1C．4，3，6，2，1D．1，2，3，4
有如下程序:includeusing namespace std;classStack{public:Stack (unsigned n=10) 有如下程序： #include ＜iostream.h＞ using namespace std; class Stack { public: Stack (unsigned n=10):size (n) {rep_=new int [size]; top=0;} Stack (stacks}: size (s.size) { rep_new int[size]; for (int i=0;i＜size;i++ rip_[i]-s.rep_[i]; top=s.top; } ～Stack() {delete[]rep_;} void poush (int a) {rep_[topj=a; top++;} int pep() { --top; return rep_[top];} bool isEmpty() cons5 [return Top ==0;} private: int*rep_; unsigned size, top; }; int main() { Stack s1; for(int i=1;i＜5;i++) s1.push(i); Stack s2(s1); for(i=1;i＜3;i++} cout＜＜s2.pop()＜＜','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0; } 执行上面程序的输出是A．4,3,2,1,B．4,3,6,7,2,1,C．4,3,6,2,1,D．1,2,3,4,
有下列程序: include using namespace std; class Stack { public: Stack(unsigned 有下列程序： #include＜iosteram.h＞ using namespace std; class Stack { public: Stack(unsignedn=10):size(n){rep_=new int [size];top=O;} Stack(Stacks):size(s.size) { rep_=new int[size]; foA．4,3,2,1，B．4,3,6,7,2,1，C．4,3,6,2,1，D．1,2,3,4，
有如下程序:include using namespace std;class Stack {public: Stack(unsigned n= 1 有如下程序: #include ＜iostream＞ using namespace std; class Stack { public: Stack(unsigned n= 10):size(n) {rep_=ew int[size]; top=0;} Stack(Stack s):size(s.size) { rep_=new int[size]; for(int i=0;i＜size;i++) rep_[i]=s.rep_[i]; top=s.top; } ～Stack() {delete[]rep_;} void push(int a) {rep_[top]=a; top++;} int pop() {--top;return rep_[top];} bool isEmpty() const {return top==0;} private: int *rep_; unsigned size,top; }; int main() { Stack s1; for(int i= 1;i＜5 ;i++) s1. push(i); Stack s2(s1); for(i= 1 ;i3;i++) cout＜＜s2.pop()＜＜','; s2.push(6); si.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0; }执行上面程序的输出是______ 。A．4,3,2,1，B．4,3,6,7,2,1，C．4,3,6,2,1，D．1，2，3，4，
有如下程序:include using namespace std;class Stack{public:Stack(unsigned n=10 有如下程序： #include ＜iostream.h＞ using namespace std; class Stack { public: Stack(unsigned n=10):size(n){rep_=new int [size]; top=0;} Stack(Stacks): size (s.size) { rep_=new int[size]; for (int i=0;i＜size;i++) rep_[i]=s.rep_[i]; top=s.top; } ～Stack(){delete[]rep_;} void push(int a){rep_[top]=a; top++;} int pop(){--top; return rep_[top];} bool isEmpty() const {return top ==0;} private: int*rep_; unsigned size, top; }; int main() { Stack s1; for(int i=1;i＜5;i++) sl.push(i); Stack s2(s1); for (int i=1;i＜3;i++) cout＜＜s2.pop()＜＜','; s2.push(6); s1.push(7); while(!s2.isEmpty()) cout＜＜s2.pop()＜＜','; return 0; } 执行上面程序将输出( )。A．4,3,2,1,B．4,3,6,7,2,1,C．4,3,6,2,1,D．1,2,3,4,
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The(）creates?opportunities?for?more?direct?Integration?of the?physical?world?into?computer-based?systems,resulting?in?efficiently?improvements,economic?benefits,and?reduced human?exertions.A.internet of thingsB.cloud computingC.big datAD.mobile internet
以下泛型集合声明中正确的是A．class stack＜T＞{} stack ＜int＞ s=new stack＜int＞();B．class stack＜T＞{} stack ＜int＞ s=new stack ();C．class stack＜T＞{} stack s=new stack();D．class stack＜T＞{} stack ＜int＞ s=new stack ＜int＞;