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| Problem | Category | Points | AC % | Users | |
|---|---|---|---|---|---|
| Country Hull | Uncategorized | 100p | 19.7% | 14 | |
| Caja de puros | Atcoder | 100p | 30.0% | 3 | |
| Circulos | PSNIC | 100p | 1.6% | 11 | |
| Subarreglos Circulares | Entrenamiento Avanzado | 100p | 11.0% | 22 | |
| City and State | USACO | 100p | 15.5% | 27 | |
| Clasificando Palíndromos | 7mo Entrenamiento para el Preuniversitario en la UCI | 100p | 36.6% | 131 | |
| Vacas Claustrofóbicas | Olimpiada Cubana de Informática | 100p | 40.5% | 39 | |
| Línea Vacuna. | USACO | 100p | 40.7% | 19 | |
| Juguetes de Clonación | Olimpiada Cubana de Informática | 100p | 12.2% | 78 | |
| Closing the Farm | USACO | 100p | 40.9% | 116 | |
| Computación en la nube | CEOI | 100p | 1.1% | 1 | |
| Día nublado | Entrenamiento Avanzado | 100p | 16.9% | 15 | |
| Club de fútbol | PSNIC | 100p | 7.5% | 1 | |
| Couple matching | Uncategorized | 100p | 25.7% | 26 | |
| Combinaciones de Monedas | UCLV Selection | 100p | 12.5% | 1 | |
| Contando Hipérdromos | COJ Round 8 (by dcordb) | 100p | 3.4% | 1 | |
| Contando Triángulos | UCLV Selection | 100p | 14.3% | 1 | |
| Montaña Rusa Vacuna | Olimpiada Cubana de Informática | 100p | 20.3% | 23 | |
| Cocinando | Uncategorized | 100p | 23.2% | 53 | |
| Códigos de Barra. | Olimpiada Cubana de Informática | 100p | 15.0% | 54 | |
| C3-IC y la hipótesis (CIIC 2021) | Original | 100p | 4.6% | 1 | |
| Morteza, Joseph y las monedas. | Original | 100p | 26.0% | 52 | |
| Cambio de Monedas | COJ | 100p | 14.1% | 28 | |
| Coin Piles. | CSES | 100p | 39.3% | 21 | |
| Agua Fría Clara. | USACO | 100p | 62.7% | 47 | |
| Coleccionismo de monedas | PSNIC | 100 | 2.2% | 2 | |
| Collecting Numbers. | CSES | 100p | 70.6% | 12 | |
| Collecting Numbers II. | CSES | 100p | 100.0% | 4 | |
| Coloreando el Tablero | PSNIC | 100p | 2.8% | 6 | |
| Coloreando Cadenas | PSNIC | 100p | 23.9% | 21 | |
| Coloreando los Árboles | Codeforces | 100p | 16.2% | 24 | |
| Combinación | COPA ABEL SANTAMARIA | 100p | 9.4% | 24 | |
| Combinatorics. | Uncategorized | 100p | 1.6% | 7 | |
| Common Divisors. | CSES | 100p | 11.1% | 32 | |
| Competencia en una carrera. | Uncategorized | 100p | 26.8% | 8 | |
| Company Queries I | CSES | 100p | 64.3% | 8 | |
| Company Queries II. | CSES | 100p | 90.0% | 8 | |
| Botes | PSNIC | 100 | 2.3% | 2 | |
| Competencia por equipos | COCI | 100 | 15.3% | 94 | |
| Otro problema de conteo (III) | Original | 100p | 26.4% | 22 | |
| Compra de Pavos | COJ | 100p | 3.2% | 11 | |
| Concert Tickets. | CSES | 100p | 28.6% | 8 | |
| Concurso de Sumas | Original | 100 | 14.0% | 13 | |
| ¿Conexión? | Olimpiada Cubana de Informática | 100p | 51.9% | 31 | |
| Lucha contra la desertificación | Atcoder | 100p | 14.9% | 34 | |
| Conquistando el Pico Turquino | Entrenamiento Avanzado | 100p | 8.9% | 29 | |
| Posibilidades de Suma de Secuencia | Olimpiada Cubana de Informática | 100p | 26.2% | 67 | |
| Construyendo un súper número | Olimpiada Cubana de Informática | 100p | 8.0% | 237 | |
| Construccion | Olimpiada Cubana de Informática | 100p | 6.9% | 8 | |
| Respondiendo Preguntas | 6to Entrenamiento Preuniversitario | 100p | 15.1% | 85 |