题解 | #牛牛的快递#

#include <stdio.h>
int main() {
    float a;
    char b;
    int amount = 0;
    scanf("%f %c",&a,&b);
    if(a <= 1){
        if(b == 'y'){
            amount = 25;
        }
        else {
            amount = 20;
        }
    }
    else{
        int c = a-0.1 + 1; // 向上取整
        if(b == 'y'){
            amount =  c + 20 + 4;
        }
        else {
            amount =  c + 19;
        }
    }
    printf("%d",amount);
    return 0;
}