# include <stdio.h>

void main()
{
    /* sex代表输血者的性别，weight代表输血者的体重，cubage代表输血量 */
    int sex, weight, cubage;
    printf("请给出输血者的性别和体重：");
    scanf("%d,%d", &sex, &weight);

    if(sex >= 0)    /* 若变量sex的数值为非负数，则表示为男性 */
    {
        if(weight >= 120)
        {
            cubage = 200;
            printf("此人应该输血：%d毫升\n", cubage);
        }
        else
        {
            cubage = 180;
            printf("此人应该输血：%d毫升\n", cubage);
        }
    }
    else   /* 否则，表示为女性 */
    {
        if(weight >= 100)
        {
            cubage = 150;
            printf("此人应该输血：%d毫升\n", cubage);
        }
        else
        {
            cubage = 120;
            printf("此人应该输血：%d毫升\n", cubage);
        }
    }
}