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// https://t.me/javascriptbrasil/284366 | |
alert("Responda as próximas perguntas com um número" | |
" ou com a letra maiúscula X uma única vez") | |
const na = prompt("valor n(A)") | |
const nb = prompt("valor n(B)"); | |
const nc = prompt("valor n(C)"); | |
const nab = prompt("valor n(A^B)"); | |
const nac = prompt("valor n(A^C)"); | |
const nbc = prompt("valor n(B^C)"); | |
const nabc = prompt("valor n(A^B^C)"); | |
const u = prompt("valor universo"); | |
const bloco1 = [na, nb, nc, nabc] | |
const bloco2 = [nab, nac, nbc, u] | |
const somaVetor = arr => arr.reduce( (acc, el) => acc + Number(el), 0) | |
const filtraX = arr => arr.filter(el => el !== "X") | |
const bloco1temX = !!bloco1.find(el => el === "X") | |
if (bloco1temX) { | |
alert(`O valor de X é ${somaVetor(bloco2) - somaVetor(filtraX(bloco1))}`) | |
} else { | |
alert(`O valor de X é ${somaVetor(bloco1) - somaVetor(filtraX(bloco2))}`) | |
} |
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