17 lines
310 B
JavaScript
17 lines
310 B
JavaScript
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var offsets = require("fs").readFileSync("input.txt").toString().split("\n").filter((a)=>(a)).map((a)=>(parseInt(a)));
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var pc = 0;
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var i = 0;
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while(offsets[pc] != null){
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i++;
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var oldpc = pc;
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pc += offsets[pc];
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if(offsets[oldpc] >= 3){
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offsets[oldpc]--;
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}
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else{
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offsets[oldpc]++
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}
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}
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console.log(i);
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