错误：在'{'标记之前预期的nonqualified-id

Question

这在我的代码中弹出是一个错误。请帮忙！

bool validData(int id, float exam1, float exam2, float exam3); 
**************************************************** 
//Purpose: Determine id, exam1, exam2, exam3 are valid or invalid. 
//Input: id, exam1, exam2, exam3. 
//Precondition: id, exam1, exam2, exam3 are assigned values. 
//Output: bool. 
//Post condition: This function returns true if all data are valid, otherwise return false. 
//Note: None. 
****************************************************
{ 
    if (( id <= MAXID && id >= MINID) && (exam1 <= MAXEXAM && exam1 >= MINEXAM) && (exam2 <= MAXEXAM
    && exam2 >= MINEXAM) && (exam3 <= MAXEXAM && exam3 >= MINEXAM)) { 
        return true; 
    } else { 
        return false; 
    } 
}

Answer 1

bool validData(int id, float exam1, float exam2, float exam3); 

错误，不需要分号。