传m位数据，纠正单个错误需要的校验位r应该满足(m+r+1)<=2^r，m=12时r应为多少？
举一反三
- 下面程序的功能是用“辗转相除法”求两个正整数的最大公约数。请分析程序填空。#includemain(){intr,m,n;scanf("%d%d",&m,&n);if(m A: 【1】r=m,m=n,n=r;【2】m%n; B: 【1】m%n;【2】r=m,m=n,n=r; C: 【1】r=m,m=n,n=r;【2】n%m; D: 【1】n%m;【2】r=m,m=n,n=r;
- 设A为m×n矩阵，B为n×m矩阵，且m＞n，令r(AB)=r，则( )。 A: r＞m B: r=m C: r＜m D: r≥m
- 若有以下程序段： int m=8,n=12，r; r=m|n; r的值
- 求给定自然数m和n的最大公约数。请完善程序。 Private Sub Command1_Click() Dim m As Integer, n As Integer, r As Integer m = Text1.Text n = Text2.Text If m < n Then r = m: m = n: n = r Do r = m Mod n m = n n = r Loop Until__________ Text3.Text = m End Sub Private Sub Command2_Click() Dim m As Integer, n As Integer, r As Integer m = Text1.Text n = Text2.Text If m < n Then r = m: m = n: n = r r = m Mod n Do Until _______ m = n n = r r = m Mod n Loop Text3.Text =____ End Sub Private Sub Command3_Click() Dim m As Integer, n As Integer, r As Integer m = Text1.Text n = Text2.Text If m < n Then r = m: m = n: n = r Do r = m Mod n m = n n = r Loop While________ Text3.Text =______ End Sub Private Sub Command4_Click() Dim m As Integer, n As Integer, r As Integer m = Text1.Text n = Text2.Text If m < n Then r = m: m = n: n = r r = m Mod n Do While______ m = n n = r r = m Mod n Loop Text3.Text =____ End Sube73f1fd63959cc8362d8c82d419c2353.png
- 设A是m×n矩阵，B是n×m矩阵，E为m阶单位矩阵，若AB＝E，则（）。 A: r（A）＝m，r（B）＝m B: r（A）＝m，r（B）＝n C: r（A）＝n，r（B）＝m D: r（A）＝n，r（B）＝n