C++ read matttrix from text file

	
ifstream f("matrix.txt");
f >> m >> n;

if ((m != 4) || (n != 3))
  {
  cout << "Matrix not 4 by 3!n";
  return 1;
  }

for (int i = 0; i < m; i++)
for (int j = 0; j < m; j++)
  f >> A[i][j];

Similar codes

0 vote103 views1 answer
C++ fonksion pointer
C++
-1 vote107 views1 answer
How to define range of numbers inside a if condition in c++
C++
0 vote115 views1 answer
Unpack tuple c++
C++
1 vote121 views1 answer
Roscpp publish int32
C++
0 vote111 views2 answers
Css window id
C++
1 vote111 views1 answer
How to reverse a string in c++ using reverse function
C++
-1 vote121 views1 answer
Ob for nginx.service failed because the control process exited with error code. See "systemctl status nginx.service" and "journalctl -xe" for details.
C++
7 votes110 views1 answer
Vector concat c++
C++
32 votes113 views2 answers
How to sort a vector in reverse c++
C++
0 vote155 views1 answer
Inverse lerp c++
C++