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How to initialize a stack with random numbers in C++

1 Answer

0 votes
#include <iostream>
#include <stack>
#include <vector>
#include <random>

std::stack<int> initStack(size_t size, int bound) {
    std::stack<int> stack;
    std::random_device rd;
    std::mt19937 rnd(rd());
    std::uniform_int_distribution<> dist(1, bound);

    for (size_t i = 0; i < size; ++i) {
        stack.push(dist(rnd));
    }

    return stack;
}

int main() {
    std::stack<int> stack = initStack(15, 100);

    // Print stack contents (top to bottom)
    std::vector<int> temp;
    while (!stack.empty()) {
        temp.push_back(stack.top());
        stack.pop();
    }

    std::cout << "Stack contents: ";
    for (auto it = temp.rbegin(); it != temp.rend(); ++it) {
        std::cout << *it << " ";
    }
}

  
  
/*
run:
  
Stack contents: 10 46 79 98 40 70 26 29 49 89 61 63 25 100 49 
  
*/

 



answered Oct 11, 2025 by avibootz
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