Molocoads 2026 Summer SDE Intern Online Test Experience

The platform used is CodeSignal. You need to have your webcam and microphone on for the entire screen recording. Before starting, you need to check your ID and have your face captured. You can open an

The platform used is CodeSignal. You need to have your webcam and microphone on for the entire screen recording. Before starting, you need to check your ID and have your face captured. You can open another webpage to check the syntax, but not anything else. There are four questions in total, with 70 minutes. Question 1: Given a string, convert uppercase to lowercase and lowercase to uppercase, leaving everything else unchanged. Question 2: Given a string memo and an integer k, find the non-vowel (a, e, i, o, u) parts of memo, i.e., the consonant parts. For every k consonants, change the kth consonant to the next consonant in its alphabet. For example, "CodeSignal" becomes "CodeTignam", changing S to T and l to m. Question 3: I was a bit rushed towards the end and forgot... Question 4: Given a set of numbers, such as [404, 7, 504, 604, 2, 12], find the number of pairs that differ by one digit (changing one digit will make them equal). For example, 404 and 504 are considered a pair (changing the first digit), and 7 and 2 are also considered a pair (changing either digit). If the two digits have different lengths, they are not considered a pair; for example, 2 and 12 are not considered a pair. Please give me some points!! I urgently need to see interview experiences!!