hdoj1049 Climbing Worm(小学数学题)

简单的数学题

#include<stdio.h>using namespace std;int main(){int n,u,d,x;while(scanf("%d%d%d",&n,&u,&d)&&n!=0){int i=0;while(i*(u-d)+u<n)i++;x=i*2+1;printf("%d\n",x);}return 0;}