c语言 任意输入一个3×3的矩阵,用函数实现求上三角矩阵并输出。

2025-04-15 10:34:49
推荐回答(1个)
回答1:

int mycmp(const char *s1,const char *s2)
{
int i;
int diff;

for(i = 0; ; i++){
diff =((unsigned char *)s1)[i] - ((unsigned char *)s2)[i];
if(diff != 0 || s1[i] == '\0')
return diff;
}
}