poj1563---蜗牛爬井

#include <stdio.h>

#include <stdlib.h>



int main()

{

    int dayTh;

    float Udis,currentHeight,firstClaim,HeightOfWell,downDis,fagtigue;

    while(scanf("%f %f %f %f",&HeightOfWell,&Udis,&downDis,&fagtigue)!=EOF){

        if(HeightOfWell==0)

            break;

        currentHeight=0;

        firstClaim=Udis;

        dayTh=0;

        while(1){

            currentHeight+=Udis;

            Udis-=fagtigue/100*firstClaim;

            if(Udis<0)

                Udis=0;

            dayTh++;

            if(currentHeight>HeightOfWell){

                printf("success on day %d\n",dayTh);

                break;

            }

            else{

                currentHeight-=downDis;

                if(currentHeight<0)

                    {

                        printf("failure on day %d\n",dayTh);

                        break;

                    }

                }

        }

    }

    return 0;

}

WA过，注意当Udis<0,Udis=0；变量都赋值成float