Is the word pintamos the same in Brazilian and European Portuguese?

Yes.

The word pintamos is identical in both Brazilian and Continental Portuguese in terms of spelling, grammar, and meaning. It is the first-person plural conjugation of the verb pintar, functioning as both the present tense ("we paint") and the preterite tense ("we painted"). The only difference is pronunciation. In Brazilian Portuguese, the vowels are generally more open and the rhythm is more melodic. In Continental Portuguese, unstressed vowels (such as the "o" in pintamos) are often more closed or even reduced/swallowed, and the rhythm is more stress-timed.

Brazilian Portuguese Examples

1. Nós pintamos a sala de casa ontem. (We painted the living room yesterday.)
2. Pintamos o quarto de um amarelo bem clarinho. (We painted the bedroom a very light yellow.)
3. Nós pintamos o muro da nossa casa de azul. (We painted our house's wall blue.)
4. Pintamos os quadros para decorar a sala. (We painted the paintings to decorate the living room.)
5. Nós pintamos a cozinha de branco para ficar mais limpa. (We painted the kitchen white to make it cleaner.)

Continental Portuguese Examples

1. Nós pintamos a sala de estar ontem. (We painted the living room yesterday.)
2. Pintamos o quarto de amarelo. (We painted the bedroom yellow.)
3. Nós pintamos o muro da nossa residência de azul. (We painted the wall of our residence blue.)
4. Pintamos os quadros para decorar a sala. (We painted the paintings to decorate the living room.)
5. Nós pintamos a cozinha de branco para que parecesse mais limpa. (We painted the kitchen white so that it would look cleaner.)