from leetcode.problems import program1
from leetcode.problems import program2
from leetcode.problems import program3
from leetcode.problems import program4
from leetcode.problems import program5
from leetcode.problems import program6
from leetcode.problems import program7
from leetcode.problems import program8
from leetcode.problems import program9

def leetcode_main():
    program1.twosum_main()
    program2.addtwonumbers_main()
    program3.longestsubstring_main()
    program4.mediansortedarray_main()
    program5.longestpalindrome_main()
    program6.zigzag_main()
    program7.reverseinteger_main()
    program8.stringtointeger_main()
    program9.palindromenumber_main()
    return 1

