foo.cc: In function 'int main()':
foo.cc:31:13: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   31 |   if(a[i][k]=a[i][index])
      |      ~~~~~~~^~~~~~~~~~~~
foo.cc:49:8: error: expected primary-expression before 'int'
   49 |  cout>>int>>index>>endl;
      |        ^~~
foo.cc:8:23: warning: unused variable 'max' [-Wunused-variable]
    8 |   int a[n][n],i,j,N,k,max,min,index,num=0;
      |                       ^~~

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