foo.cc:3:32: error: ‘INT_MIN’ was not declared in this scope
    3 | int n,m,a[15][15],k=1,c=0,maxx=INT_MIN;
      |                                ^~~~~~~
foo.cc:1: note: ‘INT_MIN’ is defined in header ‘<climits>’; this is probably fixable by adding ‘#include <climits>’
    1 | #include<iostream>