/in/ex4.cpp: In function 'int main()':
/in/ex4.cpp:12:27: error: ISO C++ forbids variable length array 'pond' [-Werror=vla]
     int pond[rows][columns];
                           ^
/in/ex4.cpp:12:27: error: ISO C++ forbids variable length array 'pond' [-Werror=vla]
/in/ex4.cpp:24:22: error: expected primary-expression before ')' token
             else if ()
                      ^
/in/ex4.cpp:25:9: error: expected primary-expression before '}' token
         }
         ^
/in/ex4.cpp:18:9: error: unused variable 'fishAreaNum' [-Werror=unused-variable]
     int fishAreaNum = 0;
         ^~~~~~~~~~~
cc1plus: all warnings being treated as errors