Excel Sheet Column Number
Related to question Excel Sheet Column Title
Given a column title as appear in an Excel sheet, return its corresponding column number.
For example:
A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28
相当于26进制的运算:
int titleToNumber(char *s) { int i,res=0; for(i = 0; i<strlen(s); i++){ res = res*26+s[i]-'A'+1; } return res; }