c语言计算BMR有人会吗

#include <stdio.h>
int main()
{
    float height,weight,BMR;
    int age;
    char sex;
    scanf("%f %f %d %c",&height,&weight,&age,&sex);
    if(sex == 'M')
    {
        BMR=66+(6.3*weight*2.2)+(12.9*height*0.39)-(6.8*age);
    }
    else
    {
        BMR = 655+(4.3*weight*2.2)+(4.7*height*0.39)-(4.7*age);
    }
    printf("您需要消耗%.2f块巧克力。",BMR/230);

    return 0;
}