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    "###  Homework 6 assignment due by 4/21/2026.\n",
    "OpenMP\n",
    "\n",
    "\n",
    "Get a source code for matrix addition/substraction from here:\n",
    "\n",
    "<TT>https://www.sanfoundry.com/c-program-addition-subtraction-trace-matrices/<TT>\n",
    "\n",
    "copy/paste it into file ```matrix.c```\n",
    "\n",
    "A) Compile it and run for 4 x 4 matrices.\n",
    "\n",
    "B) By using Open MP, parallelize both the inner and the outer loops for ```arraysum[i][j]```, ```arraydiff[i][j]```, and  ```trace```\n",
    "\n",
    "C) Compile the code and run it with 2 threads."
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