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| class Solution {
public int titleToNumber(String columnTitle) {
int res = 0;
int product = 1;
for (int i = columnTitle.length() - 1; i >= 0; i--) {
int num = columnTitle.charAt(i) - 'A' + 1;
res += product * num;
product *= 26;
}
return res;
}
}
|
References
171. Excel Sheet Column Number