1670 - DotA

DotA(Defence of the Ancients) is very popular in Zhejiang University.Now a new hero appears in DotA.This hero has a miraculous skill.If the target's HP n is an even number,then it will be cut in half after skill-using.Otherwise the targe's HP will plus one after skill-using.Given a target's HP,we want to decrease the target's HP from n to 1 only with this new skill.
Input
The input consists of multiple test cases.Each case contain one line with an integer n(1<n≤1000000000).
Output
For each test case,output the target's HP's changing process on a single line.The HP values connect with '-' character.
Examples
Input
5 21
Output
5-6-3-4-2-1 21-22-11-12-6-3-4-2-1
Solution C
#include<stdio.h> int main() { int n; while(scanf("%d",&n)!=EOF) { printf("%d",n); while(1) { if(n%2==0) { printf("-%d",n/2); n=n/2; } else { printf("-%d",n+1); n=n+1; } if(n==1) break; } printf("\n"); } }
Solution C++
#include <stdio.h> int n; void run() { printf("%d",n); while(n!=1) { if(n%2==1) n++; else n/=2; printf("-%d",n);//这道题唯一值得注意的地方就是不要输出多余的减号!!!每行里减号比数要少一个,所以注意判断。 } printf("\n"); } int main() { while(scanf("%d",&n)!=EOF) run(); return 0; }