Ka recursive programming exercises part2| the positive sequence output, arithmetic progression and

Source: Internet
Author: User

1#include <stdio.h>2 voidPP (intN)3 {4     if(n==0)return;5PP (n/Ten);6printf"%d", n%Ten);7 }8 voidNP (intN)9 {Ten     if(n==0)return; Oneprintf"%d", n%Ten); APP (n/Ten); - } - intAd (intN) the { -     if(n==0)return 0; -     if(n==1)return 1; -     returnAd (n1)+N; + } - intMain () + { A     intN; atscanf"%d",&n); -printf"%d\n", Ad (n)); - PP (n); -printf"\ n"); - NP (n); -     return 0; in}

PP is the positive sequence, NP is reverse order, ad is a series and.

The difference between PP and NP is that, as the deeper the n%10 is the higher, so pp first into the bottom, then output, NP first output, and then into the deep call.

Ad Note that +n is not +1, otherwise it will output the original number at the end. (Think about it, why?) )

Ka recursive programming exercises part2| the positive sequence output, arithmetic progression and

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