函数search的作用是应用折半查找法从存有N个整数的升序数组a中 对关键字key进行查找。划线处应填入________。 #define N 15 search(int a[N],int key) { int low=0,high=N-1,mid; while(low<=high) {mid=(low+high)/2; if(key
a[mid]) low=mid+1; else return (mid); } return (________); } void main( ) { int b[N],n,i,j; printf("Please input a %d elment increasing sequence:",N); for(i=0;i