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optimization

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edited Oct 7, 2014 at 7:18

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JavaScript 2 (ES6) - 151148 151 bytes

F=s=>s.split(/\n/g).every((b,i,a)=>(r=1,b.replace(/]/g,(m,o)=>(T=z=>(a[i-1+(z&2)]||[])[o-(z&1)*3]=='_'z%2*3]=='_',r&=i>a.length-2?1:T(2)?T(3)|T(0):T(3)&T(1))),r))

Exepects a string of newline separated brick rows (note: if we could use a different separator character like "|" to separate rows this could be made 1 byte shorter).

Test in Firefox console with:

F('..[__]......\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // false
F('..[__][__]..\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // true

JavaScript 2 (ES6) - 151 bytes

F=s=>s.split(/\n/g).every((b,i,a)=>(r=1,b.replace(/]/g,(m,o)=>(T=z=>(a[i-1+(z&2)]||[])[o-(z&1)*3]=='_',r&=i>a.length-2?1:T(2)?T(3)|T(0):T(3)&T(1))),r))

Exepects a string of newline separated brick rows (note: if we could use a different separator character like "|" to separate rows this could be made 1 byte shorter).

Test in Firefox console with:

F('..[__]......\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // false
F('..[__][__]..\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // true

JavaScript 2 (ES6) - 148 151 bytes

F=s=>s.split(/\n/).every((b,i,a)=>(r=1,b.replace(/]/g,(m,o)=>(T=z=>(a[i-1+(z&2)]||[])[o-z%2*3]=='_',r&=i>a.length-2?1:T(2)?T(3)|T(0):T(3)&T(1))),r))

Exepects a string of newline separated brick rows (note: if we could use a different separator character like "|" to separate rows this could be made 1 byte shorter).

Test in Firefox console with:

F('..[__]......\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // false
F('..[__][__]..\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // true

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created Oct 5, 2014 at 15:21

me and my cat

1.2k
10
11

JavaScript 2 (ES6) - 151 bytes

F=s=>s.split(/\n/g).every((b,i,a)=>(r=1,b.replace(/]/g,(m,o)=>(T=z=>(a[i-1+(z&2)]||[])[o-(z&1)*3]=='_',r&=i>a.length-2?1:T(2)?T(3)|T(0):T(3)&T(1))),r))

Exepects a string of newline separated brick rows (note: if we could use a different separator character like "|" to separate rows this could be made 1 byte shorter).

Test in Firefox console with:

F('..[__]......\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // false
F('..[__][__]..\n[__][__][__]\n..[__][__]..\n[__]....[__]'); // true