set(SOURCES
    src/other/3nplus1.cc src/other/3nplus1.h
    src/problems/primes.cc src/problems/primes.h
    src/problems/problem1.cc src/problems/problem1.h
    src/problems/problem2.cc src/problems/problem2.h
    src/problems/problem3.cc src/problems/problem3.h
    src/problems/problem4.cc src/problems/problem4.h
)