foo.cc:6:17: warning: overflow in conversion from ‘double’ to ‘int’ changes value from ‘-1.0e+10’ to ‘-2147483648’ [-Woverflow]
    6 | const int INF = -1E10;
      |                 ^~~~~
foo.cc: In function ‘int main()’:
foo.cc:11:24: warning: unused variable ‘l’ [-Wunused-variable]
   11 |     int i, j, k, n, m, l;
      |                        ^