题解 | 牛牛的快递

#include <stdio.h>

int main() {
    float weight;
    char b;
    scanf("%f %c",&weight,&b);
    float ow;


    if(weight > 1){
     ow = weight - 1;
     if((int)ow != ow){
        (int)ow++;}
     if (b == 'y'){
        printf("%d",25 + (int)ow);
     }else if(b == 'n'){
        printf("%d",20 + (int)ow);//if语句太多了，但我也实在想不出其它方法了，小白而已。
     }
    }else if( weight <= 1){
     ow = 0;
    if(b == 'y'){
        printf("25");
    }else if(b == 'n'){
        printf("20");
    }  
    }
    return 0;
}