Answer to Question #5779 in C++ for alaa abu al-saud
2011-12-27T08:22:53-05:00
Implement a as stack and a queue using arrays.
1
2011-12-27T12:55:56-0500
#include <iostream> using namespace std; const int SIZE = 10000; struct Stack { int arr[SIZE]; int k; Stack() : k(0) { } void push(int a) { & if (k >= SIZE) return; & arr[k++] = a; } int pop() { & if (k == 0) & { & cout << "Error! Stack is empty!\n"; & return 0; & } & k--; & return arr[k]; } }; struct Queue { int arr[SIZE]; int k; Queue() : k(0) { } void push(int a) { & if (k >= SIZE) return; & for (int i = k; i >= 1; i--) & { & arr[i] = arr[i-1]; & } & k++; & arr[0] = a; } int pop() { & if (k == 0) & { & cout << "Error! Queue is empty!\n"; & return 0; & } & k--; & return arr[k]; } }; int main() { Stack s; cout << "Stack: \n" ; for (int i = 0; i < 10; i++) { & s.push(i+1); } for (int i = 0; i < 10; i++) { & cout << s.pop() << '\n' ; } Queue q; cout << "Queue: \n"; for (int i = 0; i < 10; i++) { & q.push(i+1); } for (int i = 0; i < 10; i++) { & cout << q.pop() << '\n' ; } system("pause"); }
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