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2709-as-moedas-de-robbie

as-moedas-de-robbie

B Difficulty

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# 2709 - As Moedas de Robbie | **Version**: 0.5
`as-moedas-de-robbie` | Difficulty: **B** | **Updated**: 2026-05-16 13:52:03

**Sync Status:** ✅ Local: OK | ❌ Maratona: Not in DB | ❌ API: Not in DB

## Overview
Lógica Ad-Hoc reversa somando saltos para verificação de primalidade.

## Metadata
- **Author**: Unknown
- **Editorial**: A solução se baseia em uma varredura simples do fim para o começo do array.
Dadas M moedas, saltamos de N em N iniciando pelo índice M-1 (última moeda).
Somamos os valores encontrados.
Após isso, verificamos se a soma é um número primo.
Um cuidado importante: 1 não é primo.
As strings de saída devem ser exatas:
"You’re a coastal aircraft, Robbie, a large silver aircraft." ou
"Bad boy! I’ll hit you."

- **Success Msg**: Trabalhar com índices ao inverso e testes de primalidade simples são as bases dos primeiros exercícios de Lógica de Programação!

| Time Limit | Memory Limit | Time Complexity | Space Complexity |
| :--- | :--- | :--- | :--- |
| -s | -MB | O(M + sqrt(SOMA)) | - |

## Stats
| Metric | Count |
| :--- | :--- |
| Test Scenarios | 25 |
| Solutions | 1 |

## Statements
| ID | Status | Level | Natural Languages | Skills |
| :--- | :--- | :--- | :--- | :--- |
| `a-robbie` | ✅ | A | pt | arrays, prime-numbers |

## Test Scenarios
| Name | Description | Count | Type | Level | Skills | DB Sync |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| **Carga Múltiplos Casos** | Vários casos seguidos. | 5 | Performance | A | basic-io | - |
| **Fuzzing** | Valores variados. | 15 | TDD | B | prime-numbers | - |
| **Caso Limite 1 e 0** | Soma pode dar 1, que não é primo. | 4 | TDD | C | logic | - |
| **Exemplo** | Exemplo base. | 1 | TDD | D | logic | - |

## Solutions
- **Otimizada Simples** (`a-otima-basica`)
  - Languages: `cpp, py, java`

## Components
- ✅ Statements
- ✅ Solutions
- ✅ Test Cases

Actions

Workflow do Problema

Local Workspace

Pasta criada no disco
Metadados

Informações básicas preenchidas
Validação

Soluções passam nos testes
4

Sincronização

Enviado para DB e GitLab

Components

Statements ✅
Solutions 1 ✅
Test Cases 25 ✅

Database Info

DB ID 2709

Name As Moedas de Robbie

Time Limit 1.0s

Mem Limit 256 MB

Version 0.5

Difficulty Level O

Test Cases 0

🚀 Quick Prompts

Structure Scaffolding

Generate metadata & folder structure

ID: 1.1

Context & Description

Draft description & editorial

ID: 1.2

Statements List

⚠️

Warning: The defaultStatement defined in metadata (a-robbie) was not found in the file system.

ID	Level	Natural Languages	Skills	Status	Action
a-robbie	A	a c d	arrays, prime-numbers	⚠️

Statement Details

Select a statement above to view details.

Actions

Statistics

1 Total Statements

By Type (ID)

a-robbie 1

By Level

Level A 1

🚀 Quick Prompts

Statement Analysis

Analyze ambiguity & clarity

ID: 2.1

WOK Statement Generation

Rewrite in WOK Universe theme

ID: 2.2

Statement Expansion

Expand to 4 difficulty levels

ID: 2.3

Testcase Scenarios Sync

YAML Source vs Database

Slug	Level	Name	Type	Skills	Status	Actions
`a-performance`	A	Carga Múltiplos Casos Vários casos seguidos.	PERFORMANCE	basic-io 1pts	Not in DB	Details
`b-fuzzing`	B	Fuzzing Valores variados.	TDD	prime-numbers 1pts	Not in DB	Details
`c-edge`	C	Caso Limite 1 e 0 Soma pode dar 1, que não é primo.	TDD	logic 1pts	Not in DB	Details
`d-sample`	D	Exemplo Exemplo base.	TDD	logic 1pts	Not in DB	Details

Local Test Cases (Disk)

Scenario: a-performance 5 cases

Name	Files (Input / Output)	Actions
robbie-01 📄 📷	Input `robbie-01.in` a5352adcaa424aae18e713ff937a088c Output `robbie-01.out` 46e0e42a4d24161b8e1dbf333a69cde4	🔍 Details
robbie-02 📄 📷	Input `robbie-02.in` d8814757989d6390eb799011b6adba1a Output `robbie-02.out` 83c464c3a24421592b33274c17f256bc	🔍 Details
robbie-03 📄 📷	Input `robbie-03.in` c518816110be06c25a255c8d9b8ecaaf Output `robbie-03.out` a4b0d5dbd94a4d92c2c2921f7f2d00cc	🔍 Details
robbie-04 📄 📷	Input `robbie-04.in` c89d993034de6f1e94a61001e371dcd7 Output `robbie-04.out` 348570b6fb3e33b00452bc025abf2ea6	🔍 Details
robbie-05 📄 📷	Input `robbie-05.in` 16f88440acbfbf4e15344fd3dcabfd1f Output `robbie-05.out` bced2f4e9d6a3b4d3aedac6964491005	🔍 Details

Scenario: b-fuzzing 15 cases

Name	Files (Input / Output)	Actions
robbie-01 📄 📷	Input `robbie-01.in` e7c38c54f83d378d41a925f8bf22495e Output `robbie-01.out` 79735cd0a821618fdb4797b72e819c49	🔍 Details
robbie-02 📄 📷	Input `robbie-02.in` 8a08de73635b842ec1f9dbbaa97f3941 Output `robbie-02.out` 992bad7aebb73babee06fe9cc11554fe	🔍 Details
robbie-03 📄 📷	Input `robbie-03.in` 326c056770457b59475a0f5c522d382b Output `robbie-03.out` eccc352edc2037d98d642f2513724387	🔍 Details
robbie-04 📄 📷	Input `robbie-04.in` 285f0e3c5f485a4afc78f21d1ab511e6 Output `robbie-04.out` c19d8468e3e240b932a1f2ce5028aca8	🔍 Details
robbie-05 📄 📷	Input `robbie-05.in` 239af223aace212816249608f15bcb8b Output `robbie-05.out` 6bb5a81c352abd93adb556753fbdc101	🔍 Details
robbie-06 📄 📷	Input `robbie-06.in` 3a0222b7667408f2dd337c7fc9369a23 Output `robbie-06.out` e8489ca3ba5b753dd96951027b079619	🔍 Details
robbie-07 📄 📷	Input `robbie-07.in` 45a4956339719629793d9002fd0b8b7e Output `robbie-07.out` 8c4325b54ef06588e0e5d12284711442	🔍 Details
robbie-08 📄 📷	Input `robbie-08.in` 656316b6b42358f153f830d127fea1e2 Output `robbie-08.out` 2cd9ccdc34e867804dbf1e808404241b	🔍 Details
robbie-09 📄 📷	Input `robbie-09.in` d7f294c9a4a294c9be4a1f86d14a8b03 Output `robbie-09.out` e164524fb96ab8d0979bb0490cdbed56	🔍 Details
robbie-10 📄 📷	Input `robbie-10.in` f1e0c60e99795f81837b3a3812a3faa3 Output `robbie-10.out` 0a9193a8a0772588a919c2c0cf5b69f0	🔍 Details
robbie-11 📄 📷	Input `robbie-11.in` 31340db3ef4d45962a3bb04f7082e7a2 Output `robbie-11.out` 8bbeb4868a9c61cef516ed00edbf7734	🔍 Details
robbie-12 📄 📷	Input `robbie-12.in` ce076fa010b9fc1b46697519a96f81bb Output `robbie-12.out` 8288d4449448d95a53ba52d0138cd663	🔍 Details
robbie-13 📄 📷	Input `robbie-13.in` c20bda422c600690ab84b00ff43c92b9 Output `robbie-13.out` ac3a9d8b9a679905e4de59b1febb4f18	🔍 Details
robbie-14 📄 📷	Input `robbie-14.in` a2a955d90b79e0063e7c348371e8efda Output `robbie-14.out` 518d65e240dff6a8be055d8128d48731	🔍 Details
robbie-15 📄 📷	Input `robbie-15.in` 81d307a6670403e46a91c16c8c9ddb12 Output `robbie-15.out` 9d3887e4b8274f068463f730087caabf	🔍 Details

Scenario: c-edge 4 cases

Name	Files (Input / Output)	Actions
robbie-01 📄 📷	Input `robbie-01.in` 88952706c1189058f1ae2265d701ee0b Output `robbie-01.out` 31cb8de2247560c9da3f1c51fac4e8eb	🔍 Details
robbie-02 📄 📷	Input `robbie-02.in` 07f6d34f0f1e5d604c156d85404e0176 Output `robbie-02.out` 185c49633f8fea797ca0203478fa3118	🔍 Details
robbie-03 📄 📷	Input `robbie-03.in` 79e9cc46dc6277643ac1f777438fddac Output `robbie-03.out` 185c49633f8fea797ca0203478fa3118	🔍 Details
robbie-04 📄 📷	Input `robbie-04.in` 02663abcf49a831993b09b411557ec32 Output `robbie-04.out` 185c49633f8fea797ca0203478fa3118	🔍 Details

Scenario: d-sample 1 cases

Name	Files (Input / Output)	Status	Actions
robbie-01 📄 📷	Input `robbie-01.in` 0d31d7e9f8f86c16a0a9a8fbdbe15140 Output `robbie-01.out` ea7263554531ca4ba30959e1e3556b05		🔍 Details

📊 Sync Statistics

Total (Disk) 25

Total (Database) 0

✓ Synchronized 0

⚠ Desynchronized 25

Duplicates (MD5)

Duplicates in (MD5) 0

Desync = (DB missing on Disk) + (Disk missing on DB)

Actions

Otimizada Simples

ID: a-otima-basica

Varredura reversa de N em N com O(sqrt(soma)) prima.

Implementations

Solutions Check Report

## Solutions Check Report (Detalhado / Debug)
**Generated**: 2026-06-02T17:06:02.365131
**Solution**: `solutions/a-otima-basica/robbie.cpp`

### Compilation
✅ /home/ubuntu/apps/pack-tecnicas/workspace/2709-as-moedas-de-robbie/solutions/a-otima-basica/robbie.out

### Resultados

<table class="results-table"><thead><tr><th>Test Case</th><th>Result</th><th>Time (s)</th></tr></thead><tbody>
<tr class="scenario-row"><td colspan="3"><strong>a-performance - Performance</strong></td></tr>
<tr id="row-a-performance-robbie-01-in"><td>robbie-01.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-a-performance-robbie-02-in"><td>robbie-02.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-a-performance-robbie-03-in"><td>robbie-03.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-a-performance-robbie-04-in"><td>robbie-04.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-a-performance-robbie-05-in"><td>robbie-05.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr class="scenario-row"><td colspan="3"><strong>b-fuzzing - TDD</strong></td></tr>
<tr id="row-b-fuzzing-robbie-01-in"><td>robbie-01.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-02-in"><td>robbie-02.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-03-in"><td>robbie-03.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-04-in"><td>robbie-04.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-05-in"><td>robbie-05.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-06-in"><td>robbie-06.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-07-in"><td>robbie-07.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-08-in"><td>robbie-08.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-09-in"><td>robbie-09.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-10-in"><td>robbie-10.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-11-in"><td>robbie-11.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-12-in"><td>robbie-12.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-13-in"><td>robbie-13.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-14-in"><td>robbie-14.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-b-fuzzing-robbie-15-in"><td>robbie-15.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr class="scenario-row"><td colspan="3"><strong>c-edge - TDD</strong></td></tr>
<tr id="row-c-edge-robbie-01-in"><td>robbie-01.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-c-edge-robbie-02-in"><td>robbie-02.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-c-edge-robbie-03-in"><td>robbie-03.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr id="row-c-edge-robbie-04-in"><td>robbie-04.in</td><td>✅ PASS</td><td>0.001</td></tr>
<tr class="scenario-row"><td colspan="3"><strong>d-sample - TDD</strong></td></tr>
<tr id="row-d-sample-robbie-01-in"><td>robbie-01.in</td><td>✅ PASS</td><td>0.001</td></tr>
</tbody></table>

✅ Verification

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Create Optimal/Sub-optimal code

ID: 3.1

📄 Enunciados

A 1

Idiomas: pt

💡 Soluções

cpp: 1 py: 1 java: 1

✅ 0 ❌ 0

🧪 Casos de Teste

4 Scen.

Total no Disco 25

Total no Banco 0

Sincronização 0.0%

Metadata (form)

Version

Name

Slug

ID Beecrowd

Difficulty

Time Complexity

Space Complexity

Time Limit (s)

Memory Limit (MB)

Origin

Author (Problem)

Author (Editorial)

Default Statement

Topics

Skills

Description

Editorial

Success message

metadata.yaml

# yaml-language-server: $schema=https://api.mundodocodigo.com.br/api/public/json/wok-problem.json --- version: "0.5" id: 2709 name: "As Moedas de Robbie" slug: "as-moedas-de-robbie" timelimit: 1.0 memlimit: 200 difficultyLevelId: B author: "Adriano Pereira Almeida" origin: "Beecrowd" description: 'Lógica Ad-Hoc reversa somando saltos para verificação de primalidade.' editorial: | A solução se baseia em uma varredura simples do fim para o começo do array. Dadas M moedas, saltamos de N em N iniciando pelo índice M-1 (última moeda). Somamos os valores encontrados. Após isso, verificamos se a soma é um número primo. Um cuidado importante: 1 não é primo. As strings de saída devem ser exatas: "You’re a coastal aircraft, Robbie, a large silver aircraft." ou "Bad boy! I’ll hit you." successmsg: 'Trabalhar com índices ao inverso e testes de primalidade simples são as bases dos primeiros exercícios de Lógica de Programação!' timeComplexity: O(M + sqrt(SOMA)) skills: - logic - arrays - prime-numbers statements: - id: a-robbie testScenarioLevel: A thematicSkills: - skill: arrays points: 1 - skill: prime-numbers points: 1 testScenarios: - id: a-performance name: Carga Múltiplos Casos description: "Vários casos seguidos." helpTip: "Tratou EOF corretamente?" level: A testType: PERFORMANCE skills: - skill: basic-io points: 1 - id: b-fuzzing name: Fuzzing description: "Valores variados." helpTip: "Algoritmo passa." level: B testType: TDD skills: - skill: prime-numbers points: 1 - id: c-edge name: Caso Limite 1 e 0 description: "Soma pode dar 1, que não é primo." helpTip: "Sua função de verificação de número primo acusa 1 como primo? O número 1 NÃO é primo." level: C testType: TDD skills: - skill: logic points: 1 - id: d-sample name: Exemplo description: "Exemplo base." helpTip: "Passe." level: D testType: TDD skills: - skill: logic points: 1 solutions: - id: a-otima-basica name: Otimizada Simples description: Varredura reversa de N em N com O(sqrt(soma)) prima. level: A implementations: - language: cpp paradigm: Imperative main: robbie.cpp filenames: - robbie.cpp - language: py paradigm: Imperative main: robbie.py filenames: - robbie.py - language: java paradigm: OO main: Robbie filenames: - Robbie.java authorSlugProblem: Unknown defaultStatement: a-robbie

2709-as-moedas-de-robbie

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Scenario: b-fuzzing 15 cases

Scenario: c-edge 4 cases

Scenario: d-sample 1 cases

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