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2.8 KiB
2.8 KiB
id, title, challengeType, isRequired, videoUrl, localeTitle
id | title | challengeType | isRequired | videoUrl | localeTitle |
---|---|---|---|---|---|
56533eb9ac21ba0edf2244e2 | Caesars Cipher | 5 | true | 凯撒密码 |
Description
Caesar cipher
,也称为shift cipher
。在shift cipher
中,字母的含义被移动一些设定量。一种常见的现代用途是ROT13密码,其中字母的值移动了13个位置。因此'A'''N','B'''O'等等。编写一个函数,它将ROT13编码的字符串作为输入并返回一个已解码的字符串。所有字母都是大写的。不要转换任何非字母字符(即空格,标点符号),但要传递它们。如果卡住,请记得使用Read-Search-Ask 。尝试配对程序。编写自己的代码。 Instructions
Tests
tests:
- text: <code>rot13("SERR PBQR PNZC")</code>应解码为<code>FREE CODE CAMP</code>
testString: 'assert(rot13("SERR PBQR PNZC") === "FREE CODE CAMP", "<code>rot13("SERR PBQR PNZC")</code> should decode to <code>FREE CODE CAMP</code>");'
- text: <code>rot13("SERR CVMMN!")</code>应该解码为<code>FREE PIZZA!</code> <code>rot13("SERR CVMMN!")</code> <code>FREE PIZZA!</code>
testString: 'assert(rot13("SERR CVMMN!") === "FREE PIZZA!", "<code>rot13("SERR CVMMN!")</code> should decode to <code>FREE PIZZA!</code>");'
- text: <code>rot13("SERR YBIR?")</code>应解码为<code>FREE LOVE?</code>
testString: 'assert(rot13("SERR YBIR?") === "FREE LOVE?", "<code>rot13("SERR YBIR?")</code> should decode to <code>FREE LOVE?</code>");'
- text: <code>rot13("GUR DHVPX OEBJA SBK WHZCF BIRE GUR YNML QBT.")</code>应该在<code>rot13("GUR DHVPX OEBJA SBK WHZCF BIRE GUR YNML QBT.")</code>解码到<code>THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.</code>
testString: 'assert(rot13("GUR DHVPX OEBJA SBK WHZCF BIRE GUR YNML QBT.") === "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.", "<code>rot13("GUR DHVPX OEBJA SBK WHZCF BIRE GUR YNML QBT.")</code> should decode to <code>THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.</code>");'
Challenge Seed
function rot13(str) { // LBH QVQ VG!
return str;
}
// Change the inputs below to test
rot13("SERR PBQR PNZC");
Solution
// solution required