void del_num(char *s)
{
char *tmp=s;
while(*tmp)
{
if ( *tmp>= '0' && *tmp <= '9'))
{
*s++=*tmp;
}
}
*s ='\0';
}
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void del_num(char *s)
{
char *tmp=s;
while(*tmp)
{
if ( *tmp>= '0' && *tmp <= '9'))
{
*s++=*tmp;
}
}
*s ='\0';
}