CPP

howt o initialize 3d vector in c++

vector<vector<vector<int>>> dp(n+1,vector<vector<int>>(n+1,vector<int>(n+1,-1)));

initialize vector c++

//me
typedef vector<int> vi;	

vi a; a.push_back(10);							//init empty vector then fill
vi b(10,0);										//init vector with 10 0's
vi c {1,2,3};									//init vector like array
int l[] = {1,2,3}; vi d(l,l+ 3);				//init vector with array
vi d1{10,20,30}; vi d2(d1.begin(), d2.end());	//init vector with another
vi e(10); fill(e.begin(), e.end(), 0);			//init vector then fill with 0's

initialize vector c++

std::vector<int> ints;

ints.push_back(10);
ints.push_back(20);
ints.push_back(30);

initialize vector c++

// CPP program to create an empty vector
// and push values one by one.
#include <bits/stdc++.h>
using namespace std;

int main()
{
	int n = 3;

	// Create a vector of size n with
	// all values as 10.
	vector<int> vect(n, 10);

	for (int x : vect)
		cout << x << " ";

	return 0;
}

initialize a 3d vector

vector< vector< vector<int> > > v(n , vector< vector<int> > (m, vector<int> (l) ) );