Optimus Agency | Professional Web Development

🧠

Name things for the reader, not the writer.

Tips & tricks

Open the command palette to jump anywhere
Browse blogs and courses by track
Try the live code playground

🧠

Name things for the reader, not the writer.

Tips & tricks

Open the command palette to jump anywhere
Browse blogs and courses by track
Try the live code playground

Language

Runs in the browser · readline() reads stdin

Explorer

Halloween Sale

solution.ts

Halloween Sale

easy⏱ 15 mintypescriptchallengesproblem-solving-basic-

Exampleinput → output

Input

20 3 6 80

Output

Sample case — your program reads stdin and prints to stdout.

Buy video games with decreasing prices: first game costs p, each next costs d less, but price never goes below m. With budget s, how many games can you buy?

Example: p=20, d=3, m=6, s=80 → Prices: 20, 17, 14, 11, 8, 6, 6... → Can buy: 20+17+14+11+8+6=76 → 6 games (can't afford 7th at 6)

Input format Four space-separated integers: p d m s

Output format A single integer: the number of games you can buy.

Constraints 1 ≤ m ≤ p ≤ 100, 1 ≤ d ≤ 100, 1 ≤ s ≤ 10⁶

Every problem you solve becomes a story you can tell in an interview.

Solving under pressure trains the muscle that's most tested in onsite rounds.
Explaining your approach out loud matters more than reaching the optimal solution.
Consistency wins: 1 challenge daily > 10 challenges on one Saturday a month.

Pro tip:After solving, write 2 lines on what you learned — that's what you'll remember in the interview.

mainIdle

solution.ts

🧠

Name things for the reader, not the writer.

Tips & tricks

Open the command palette to jump anywhere
Browse blogs and courses by track
Try the live code playground

Language

Runs in the browser · readline() reads stdin

Explorer

Halloween Sale

solution.ts

Halloween Sale

easy⏱ 15 mintypescriptchallengesproblem-solving-basic-

Exampleinput → output

Input

20 3 6 80

Output

Sample case — your program reads stdin and prints to stdout.

Buy video games with decreasing prices: first game costs p, each next costs d less, but price never goes below m. With budget s, how many games can you buy?

Example: p=20, d=3, m=6, s=80 → Prices: 20, 17, 14, 11, 8, 6, 6... → Can buy: 20+17+14+11+8+6=76 → 6 games (can't afford 7th at 6)

Input format Four space-separated integers: p d m s

Output format A single integer: the number of games you can buy.

Constraints 1 ≤ m ≤ p ≤ 100, 1 ≤ d ≤ 100, 1 ≤ s ≤ 10⁶

Every problem you solve becomes a story you can tell in an interview.

Solving under pressure trains the muscle that's most tested in onsite rounds.
Explaining your approach out loud matters more than reaching the optimal solution.
Consistency wins: 1 challenge daily > 10 challenges on one Saturday a month.

Pro tip:After solving, write 2 lines on what you learned — that's what you'll remember in the interview.

mainIdle

solution.ts

Optimus Agency | Professional Web Development