Question

How to randomly shuffle a vector in C++

Answer 1

#include <iostream>
#include <vector>
#include <algorithm>
#include <ctime>

using std::cout;
using std::endl;

int main()
{
	std::vector<int> vec(10);

	std::srand(std::time(0));

	for (int i = 0; i < 10; i++)
		vec[i] = i;

	std::random_shuffle(vec.begin(), vec.end());

	for (auto i : vec) {
		cout << i << " ";
	}

	cout << endl;

	return 0;
}


/*
run:

9 4 0 2 1 8 5 3 6 7

*/

 

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