题解 | #牛牛的快递#

#include <stdio.h> int main() { float maning;int month,day,ret; scanf("%f%d%d%d",&maning,&month,&day,&ret); if(month == 11 && day == 11 && ret == 1) if(maning0.7-50.0<0) printf("0.00"); else printf("%.2f",maning0.7-50.0); else if(month == 11 && day == 11 && ret == 0) if(maning0.7<0) printf("0.00"); else printf("%.2f",maning0.7); else if(month == 12 && day == 12 && ret == 1) if(maning0.8-50.0<0) printf("0.00"); else printf("%.2f",maning0.8-50.0); else if(maning0.8<50) printf("0.00"); else printf("%.2f",maning0.8); return 0; }

#include <stdio.h>
int main()
{
    float maning;int month,day,ret;
    scanf("%f%d%d%d",&maning,&month,&day,&ret);
    if(month == 11 && day == 11 && ret == 1)
        if(maning*0.7-50.0<0)
            printf("0.00");
        else
            printf("%.2f",maning*0.7-50.0);
    else if(month == 11 && day == 11 && ret == 0)
        if(maning*0.7<0)
            printf("0.00");
        else
            printf("%.2f",maning*0.7);
    else if(month == 12 && day == 12 && ret == 1)
        if(maning*0.8-50.0<0)
            printf("0.00");
        else
            printf("%.2f",maning*0.8-50.0);
    else if(maning*0.8<50)
            printf("0.00");
        else
            printf("%.2f",maning*0.8);
    return 0;
}