If you have a bit of time to translate the problems I was talking about from french to english here they are for example: (2022 - exercise 3) [0] solution [1], directory of past exams[2]
[0] https://perso.usthb.dz/~aisli/AmarIsli_files/M2SII/Corriges/...
[1] https://perso.usthb.dz/~aisli/AmarIsli_files/M2SII/Corriges/...
[2]https://perso.usthb.dz/~aisli/AmarIsli_files/M2SII/Corriges/