2021-04-14
问题
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
f(x)在[0,1]上有连续的二阶导数,f(0)=f(1)=0,任意x属于[0,...715af2ac3f81f8.png"]
2022-05-26
问题
(17)0÷(-17)-1=______.
(17)0÷(-17)-1=______.
2022-06-04
问题
文法: E∷=EE+ | EE* | aFOLLOW(E)={+,*,#}
文法: E∷=EE+ | EE* | aFOLLOW(E)={+,*,#}
2021-04-14
问题
下列程序运行时输入:This_is_a_C_Program! 运行结果为:
#include
#include
int main(void)
{
char str[81], a[81], b[81];
int n, i, j=0, k=0;
gets( str );
n=strlen( str );
for ( i=0; i
{
if ( i%2==0 ) a[j++] = str[i];
if ( i%3==0 ) b[k++] = str[i];
}
a[j] = b[k] = '