L[`a`v`r`y`z`b`t`l`h`i`w`x]:_ci 32,,/179 191 217+!:'2 7 2
M:3 3#/:+(9#2)_vs 0 146 178 50 152 184 58 154 56 186 176 26

."\\r ",$_t
rectangles:{2+(4,x)_draw y}
draw:{(box/).(,(1+(|/+/)'x(0 2;1 3))#" "),x}
box:{[m;r;c;s;d]line/[m;L`x`x`z`y;L`h`v`h`v;L`y`z`w`w;+(r+(0;!s;s-1;!s);c+(!d;0;!d;d-1));-2+4#d,s]}
line:{[m;x;y;z;i;j].[m;i;L[]M?|/M L[]?/:,;x,(j#y),z]}

`0:d:draw r:rectangles[5;15]

expand:+{[r]:[|/c:|/+b:0 0 overlap':r@:<r;.[r;(i;b[i:c?1]?1);+;1];r]}/+:
overlap:{((|/{(~x<y 0)&~x>y 1}\:)').{x,x+y-1}.''(x;y)[;(0 2;1 3)]}

`0:e:draw s:expand r