Here is a list of questions from spoj.com that you can try out.
- SAMER08F
- NSTEPS
- FASHION
- TOANDFRO
- AE00
- HANGOVER
- STAMPS
- PERMUT2
- AP2
- GIRLSNBS
- BEENUMS
- MAXLN
- MARBLES
- EGYPIZZA
- OFFSIDE
- OLOLO
- MAJOR
- ACPC11B
- FACEFRND
- STPAR
Start using C++, refer any resource explaining basic cin cout syntax.
Then learn how to use inbuilt library functions like sort in C++. This will be enough to solve many adhoc problems.
In case of any doubts, reach out to Ronak or Deepesh.