Majid is a 3rd-grade elementary student and quite well in mathematics. Once, Majid's teacher asked him to calculate the sum of numbers 1 through n.
Majid quickly answered, and his teacher made him another challenge. He asked Majid to calculate the sum of the digits of numbers 1 through n. Majid did finally find the solution. Now it is your turn, can you find a solution? Input Two space-separated integers 0 <= a <= b <= 109. Program terminates if a and b are -1. Output The sum of the digits of numbers a through b. Example *Input:* 1 10 100 777 -1 -1 *Output:* 46 8655 ne ideas?? -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
