Oh, look at you---you are trembling! You must feel cold now. In fact, you __________ in person. You can contact us by phone next time.

A．didn’t need to come

B．needn’t come

C．needn’t have come

D．don’t need come

以下为顺序表的定位运算，分析算法，请在______处用正确的语句予以填充。 int locate_sqlist(sqlist L,datatype X) /*在顺序表L中查找第一个值等于X的结点。若找到回传该结点序号；否则回传0*/{______； while((i≤L.last)&&(L.data[i-1]!=x))i++; if(______)return(i); else return(0); }