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@dholbrook
Created December 28, 2015 16:30
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#!/usr/bin/env node
const s = "75\n" +
"95 64\n" +
"17 47 82\n" +
"18 35 87 10\n" +
"20 04 82 47 65\n" +
"19 01 23 75 03 34\n" +
"88 02 77 73 07 63 67\n" +
"99 65 04 28 06 16 70 92\n" +
"41 41 26 56 83 40 80 70 33\n" +
"41 48 72 33 47 32 37 16 94 29\n" +
"53 71 44 65 25 43 91 52 97 51 14\n" +
"70 11 33 28 77 73 17 78 39 68 17 57\n" +
"91 71 52 38 17 14 91 43 58 50 27 29 48\n" +
"63 66 04 68 89 53 67 30 73 16 69 87 40 31\n" +
"04 62 98 27 23 09 70 98 73 93 38 53 60 04 23";
const tri = s.split(/\n/).map(function(line) {
return line.split(" ").map(Number)
});
function merge(bottom, top) {
return top.map(function(num,i) {
return num + Math.max(bottom[i], bottom[i+1]);
});
}
const r = tri.reverse().reduce(merge)[0];
console.assert(r === 1074, "result is not 1074");
console.log("result", r);
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