Rokua-recurses representation of 2-process function and recursion

Source: Internet
Author: User

Title Description Description Any positive integer can be expressed in 2 notation, for example: 137 of the 2 binary is represented as 10001001.
The 2 notation is written in the form of the sum of the power of 2, and the second power is preceded by the following expression: 137=2^7+2^3+2^0
The Covenant power is now represented by parentheses, which means that a^b is represented as a (b)
At this point, 137 can be represented as: 2 (7) +2 (3) +2 (0)
Further: 7=2^2+2+2^0 (2^1 with 2)
3=2+2^0
So the last 137 can be represented as: 2 (2 (2) +2+2 (0)) +2 (+ 0) +2 (0)
Another example: 1315=2^10+2^8+2^5+2+1
So the last 1315 can be expressed as:
2 (2 (+ + (0)) +2) +2 (2 (+ + (0))) +2 (2 (2) +2 (0)) +2+2 (0) input/output format input/output Input format positive integer (1<=n<=20000) output format conforms to the 0,2 representation of the contract n (cannot have spaces in the representation) sample Test point # #Sample input 137 Sample Output 2 (2 (2) +2+2 (0)) +2 (+ 0) +2 (0) sample Test Point # #Sample input 1315 Sample output 2 (2 (+ +2 (0)) +2) 2 (0 (+2) 2 (2)) +2+2 (+2)
Tips:
Recursive implementation will be relatively simple, can be recursive side of the output code as follows:
1#include <stdio.h>2 inty=0, oo;3 intFun2 (intYintFloor )4 {5     intT;6     if(y==0)7     {8         return 0;9     }Ten     Else One     { At=y%2; -Fun2 (y/2, floor+1); -         if(t==1) the         { -             if(floor==1) -             { -                 if(y/2==0)//Highest bit +                 { -printf"2"); +                 } A                 Else  at                 { -printf"+2"); -                 } -             } -             Else  -             { in                 if(y/2==0)//Highest bit -                 { to                     if(floor==0)  +                     { -printf"2 (0)"); the                     } *                     Else  $                     {Panax Notoginsengprintf"2 ("); -FUN2 (Floor,0); theprintf")"); +                     }                     A                 } the                 Else  +                 { -                     if(floor==0)  $                     { $printf"+2 (0)"); -                     } -                     Else  the                     { -printf"+2 (");WuyiFUN2 (Floor,0); theprintf")"); -                     }                     Wu                 } -                  About             } $               -         } -     } -     return 0; A } + intMain () the { -     intN; $scanf"%d",&n); theFUN2 (N,0); theprintf"\ n"); the     return 0; the}

Rokua-recurses representation of 2-process function and recursion

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