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| Problem | Category | Points | AC % | Users | |
|---|---|---|---|---|---|
| Halk-E | Copa Nacional | 100p | 14.0% | 125 | |
| Programadores | Copa Nacional | 100p | 0.3% | 2 | |
| Entrevista de Trabajo | Copa Nacional | 100p | 3.5% | 8 | |
| Dígitos visualizados | Olimpiada Cubana de Informática | 100p | 7.1% | 8 | |
| Coprimos | COJ | 100p | 51.8% | 189 | |
| Coprime Subsequences | Uncategorized | 100 | 21.8% | 14 | |
| Corner Subgrid Count. | CSES | 100p | 40.0% | 1 | |
| Cornfields | USACO | 100p | 63.6% | 17 | |
| Conteo de camiones. | Uncategorized | 100p | 45.7% | 66 | |
| Counting Bishops. | CSES | 100p | 100.0% | 2 | |
| Counting Bits. | CSES | 100p | 27.7% | 12 | |
| Counting Coprime Pairs. | CSES | 100p | 40.7% | 8 | |
| Counting Divisors. | CSES | 100p | 42.1% | 43 | |
| Counting Grids. | CSES | 100p | 83.3% | 2 | |
| Otro problema de Divisores | 7mo Entrenamiento para el Preuniversitario en la UCI | 100p | 10.1% | 201 | |
| Counting LCM Arrays. | CSES | 100p | 100.0% | 1 | |
| Counting Numbers. | CSES | 100p | 48.4% | 14 | |
| Counting Towers. | CSES | 100p | 75.7% | 15 | |
| Counting Paths. | CSES | 100p | 59.1% | 11 | |
| Counting Patterns. | CSES | 100p | 6.9% | 1 | |
| Counting Permutations. | CSES | 100p | 100.0% | 2 | |
| Counting Rooms. | CSES | 100p | 61.9% | 67 | |
| Counting Sequences. | CSES | 100p | 100.0% | 3 | |
| Course Schedule II. | CSES | 100p | 20.0% | 4 | |
| Counting Necklaces. | CSES | 100p | 53.8% | 4 | |
| Rectangles cover | DMOJ Rounds | 100 | 18.5% | 4 | |
| Operaciones de Bit con Elsie y Bessie. | Atcoder | 100p | 14.4% | 17 | |
| Cow Checkups. | USACO | 100p | 66.7% | 5 | |
| Cow Dance Show. | USACO | 100p | 35.7% | 33 | |
| El último dígito de Bessie. | Original | 100p | 73.3% | 119 | |
| Trote Vacuno | Olimpiada Cubana de Informática | 100p | 22.1% | 20 | |
| Moortal Cowmbat. | USACO | 100p | 34.5% | 8 | |
| Genoma Bovino | Olimpiada Cubana de Informática | 100p | 39.4% | 83 | |
| Yahtzee Vacuno. | USACO | 100p | 16.7% | 1 | |
| Vacas de fiesta. | USACO | 100p | 19.7% | 24 | |
| Cow Photographs | USACO | 100p | 3.1% | 11 | |
| Fotografías Vacunas | Olimpiada Cubana de Informática | 100p | 8.0% | 7 | |
| Política Vacuna | USACO | 100p | 15.6% | 21 | |
| Vacas en una Fila | Olimpiada Cubana de Informática | 100p | 28.2% | 79 | |
| El Escape Vacuno | USACO | 100p | 16.1% | 8 | |
| The Cow Signal. | USACO | 100p | 85.7% | 27 | |
| Esquiando. | USACO | 100 | 22.8% | 6 | |
| La Toca Vacuna Seria. | USACO | 100p | 3.1% | 2 | |
| Cow Tipping. | USACO | 100p | 41.7% | 14 | |
| Contando pares | PSNIC | 100p | 15.2% | 9 | |
| Collares de perlas. | Olimpiada Cubana de Informática | 100p | 8.7% | 1 | |
| Contando prefijos palíndromos | 6to Entrenamiento Preuniversitario | 100p | 22.3% | 55 | |
| Calculando consultas | 7mo Entrenamiento para el Preuniversitario en la UCI | 100p | 20.2% | 83 | |
| Creating Strings. | CSES | 100p | 74.1% | 62 | |
| Creating Strings II. | CSES | 100p | 49.1% | 20 |