题解 | 牛牛的快递

#include <stdio.h>
int main()
{
    int total=0;
    float a;
    char b;
    scanf("%f %c",&a,&b);
    int d=a;
    if(b=='y')
    {
        if(a<=1)
        {
            total=20+5;
        }
        else if(d-a<0)
        {
            total=20+(d-1)+1+5;
        }
        else
        {
            total=20+(d-1)+5;
        }
    }
    else
    {
        if(a<1)
        {
            total=20;
        }
        else if(a-d!=0)
        {
            total=20+d;
        }
        else 
        {
            total=20+d-1;
        }
    }  
    printf("%d",total);
    return 0;
}