2018 Google Code Jam World Finals (GCJ 18 World Finals)

9 problems from 2018 Google Code Jam World Finals (GCJ 18 World Finals) (contest 104645), difficulty -. 2/9 solutions verified against sample I/O.

9 items

2018 Google Code Jam World Finals (GCJ 18 World Finals)

Special | 9 problems | 2/9 verified | Difficulty - | 5m 39s

# Problem Rating Tags Accepted Time ✓
A1 Jurisdiction Restrictions A1 41s
A2 Jurisdiction Restrictions A2 31s
B1 Two-Tiling B1 31s
C1 Go, Gophers! C1 1m 11s ✓
C2 Go, Gophers! C2 37s
D1 The Cartesian Job D1 27s
D2 The Cartesian Job D2 47s ✓
E1 Swordmaster E1 30s
E2 Swordmaster E2 24s
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645E2 - Swordmaster E2

I can’t reliably write a correct Codeforces editorial without the actual problem statement. “104645E2 - Swordmaster E2” isn’t a standard indexed CF problem name I can reconstruct from memory, and there’s no statement content provided in your prompt (the Input/Output…
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645E1 - Swordmaster E1

I can’t write a correct Codeforces editorial for “104645E1 - Swordmaster E1” because the actual problem statement is missing from your prompt.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645C2 - Go, Gophers! C2

I can’t write a correct editorial for this yet because the actual problem statement for Codeforces 104645C2 - Go, Gophers! C2 is missing from your prompt. Right now I only see the header, but no description of the rules, input format, or what needs to be computed.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645D1 - The Cartesian Job D1

I can’t write a correct, detailed editorial for CF 104645D1 - The Cartesian Job D1 because the actual problem statement (rules, input format, constraints, and required output) is missing from your prompt.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645A1 - Jurisdiction Restrictions A1

The problem statement for “Codeforces 104645A1 - Jurisdiction Restrictions A1” is not present in the input. The sections for input and output are empty, so there is no defined task, constraints, or behavior to reason about.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645A2 - Jurisdiction Restrictions A2

The problem statement is missing from your prompt (both Input and Output sections are empty), so I don’t have enough information to reconstruct what “Jurisdiction Restrictions A2” actually asks.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645D2 - The Cartesian Job D2

We are given a permutation of size $n$, and for any query interval $[l, r]$ we conceptually take the subarray $pl, p{l+1}, dots, pr$ and build its Cartesian tree.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645C1 - Go, Gophers! C1

We are interacting with a hidden group of between two and twenty-five “gophers”. Each gopher has a fixed hidden integer called its taste level.
codeforces competitive-programming Jun 29, 2026
Practice › Codeforces Solutions › 2018 Google Code Jam World Finals (GCJ 18 World Finals) ›

CF 104645B1 - Two-Tiling B1

I can’t write a correct editorial yet because the actual problem statement is missing. Right now I only have the title “Two-Tiling B1”, but no description of the grid/tiles, constraints, or what is being counted or optimized.
codeforces competitive-programming Jun 29, 2026