size of a matrix using vector c 2b 2b

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showing results for - "size of a matrix using vector c 2b 2b"
Gwyneth
13 Aug 2020
1#include <bits/stdc++.h>
2using namespace std;
3int main() 
4{
5  int rows = 2;
6  int cols = 2;
7  int val = 1;
8  vector< vector<int> > v(rows, vector<int> (cols, val));  /*creates 2d vector “v[rows][cols]” and initializes all elements to “val == 1” (default value is 0)*/
9  v[0][0] = 5;
10  v[1][1] = 4;
11  cout << v[0][0] << endl; //Output: 5cout << v[1][0] << endl; //Output: 1return 0;}
Yasmina
27 Feb 2017
1// finding size of a square matrix
2myVector[0].size();
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