题解 | #牛牛的快递#

#include <stdio.h>

int main() {
    float a;
    int pri;
    char b;
    int count = 0;
    scanf("%f %c",&a,&b);
    if(a<=1)
    {
        pri = 20;
    }
    else
    {
        for(float i=a-1;i>0;i--)
        {
            count++;
        }
        pri = 20 + count;
    }
    switch (b) 
    {
        case 'y':pri = pri + 5;break;
        case 'n':break;
    }
    printf("%d",pri);
    return 0;
}