Challenge: Assemble furniture

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// Here's the explanation of the challenge -- when you're done reading it, // click on `main.js` above to get started with the challenge! // After a trip down to the furniture store, you've come back with... well, // a random collection of pieces of wood and bits of metal, it seems. // Apparently you have to assemble it yourself. Let's use code to see if we // can make a dining space out of this. // ## Description // In this challenge, you will write a `maximumGuests` function that receives // two arguments. The first argument is the number of wooden boards, and the // second argument is the number of wooden legs. The arguments represent the // pieces we can use to assemble dining tables and chairs. // For example, if we have four wooden boards and ten wooden legs, the // function could be invoked like: // maximumGuests(4, 10) // Your function should return the number of people that will be able to sit // around the tables, once the furniture is assembled in the way that allows // the most people to sit in it. // For someone to be able to sit around a table, there has to be a **chair** // for them to sit on, and a **space** in the table for them to sit in front // of. Here's what you need to know about the furniture: // To assemble a **table**, you will need **four wooden boards** and **four // wooden legs**. Each table provides spaces to seat **four people** around // them, provided there's a chair. // To assemble a **chair**, you will need **one wooden board** and **three // wooden legs**. Each chair can sit **one person**, provided there's space // for them in a table. // ## Example // For example, if you have eight wooden boards and twelve wooden legs, you could // assemble four chairs (with four boards to spare) but then no one would be able // to sit around the table, because there wouldn't be any tables. You could also // assemble two tables (with four legs to spare) but then no one would be able // to sit around those tables either, because there wouldn't be any chairs. // But with the same boards and legs, you can instead assemble a table and two // chairs (with two boards and two legs to spare) and sit two people around a // table. This is the most people you can sit around a table with that number // of boards and legs, and therefore your function should return `2`.
/* Check out README.md for instructions! */ function maximumGuests(woodenBoards, woodenLegs) { /* Your code goes here! */ /* Press [▶ Run] to see your code in action! */ /* You'll see the output of the tests below the button */ } /* Test runner (do not modify this line!) */ const expect = require("./expect")(maximumGuests) /* Test cases (remember to add more!) */ // no pieces, no furniture, no seats! expect(0, 0, 0) // with six boards and ten legs we can build // a table and two chairs, seating two people expect(2, 6, 10) // your test case here! // expect(expectedGuests, boards, legs)
/* Test runner (do not modify this!) */ module.exports = (run) => function expect(expected, ...inputs) { const stringify = (value) => { const serialised = JSON.stringify(value, undefined, 2) || "undefined" const lines = serialised.split('\n') for (i = 1; i < lines.length; i++) { lines[i] = "\t" + lines[i] } return lines.join('\n') } const serialisedInputs = inputs .map(stringify) .join(", ") const actual = run(...inputs) if (expected !== actual) { console.log( ` ❌ ${run.name}(${serialisedInputs})\n\n` + `\texpected: ${stringify(expected)}\n` + `\tbut instead got: ${stringify(actual)}\n\n` ) } else { console.log( ` ✅ ${run.name}(${serialisedInputs}) === ${stringify(actual)}\n` ) } }
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