Read the question, write TypeScript on the right, then Run or Check.
QuestionHint and solution stay closed until you open them
1-indexed Fibonacci F1=F2=1.
Examples
Input
6
Output
8
Hint
- two runners
Show correct code
Peek only after you have tried. You can still Check your own version.
const n: number = Number(readLine());
let a = 1, b = 1;
for (let i = 3; i <= n; i++) { const c = a + b; a = b; b = c; }
console.log(b);
main.tstsc · readLine() · Ctrl + Enter
ResultIdle
Run to see output. Check grades the tests.