22 lines
448 B
Text
22 lines
448 B
Text
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/ parsing
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(f;r;t):+{x[1 4],,9_x^'","}'" "\' 0:"input"
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(f;t):`s$''(f;t)
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r:f!{`I$x[&(x<58)&47<x]}' r
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g:f!t
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/ total flow scoring
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tf: {+/+\{x,(30-#x)#0}((r.)'x)*`XX=':x}
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/ valves to open
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vto: f^(=r).0;
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/ paths to keep after each step
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best: {x[(1000&#x)#>tf'x]}
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p:{[n;ps]
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ms:ps[&~fin:(#vto)={#?x[&`X=':x]}'ps];
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rt: best[ps[&fin],(ms[w],'(,*|)'ms[w:&{(0|/vto=l)&~|/0&':x=l:*|x}'ms]),,/{x,/:,'g[*|x]}' ms];
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$[n>1;o[n-1;rt];rt]}
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*tf'p[29;,,`AA]
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