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RomanToInteger.java
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53 lines (49 loc) · 1.3 KB
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/**
* Created by devpriyadave on 2/18/18.
*/
public class RomanToInteger {
public int myRomanToInt(String s) {
//did not solve
return 0;
}
public int romanToInt(String s) {
int nums[]=new int[s.length()];
for(int i=0;i<s.length();i++){
switch (s.charAt(i)){
case 'M':
nums[i]=1000;
break;
case 'D':
nums[i]=500;
break;
case 'C':
nums[i]=100;
break;
case 'L':
nums[i]=50;
break;
case 'X' :
nums[i]=10;
break;
case 'V':
nums[i]=5;
break;
case 'I':
nums[i]=1;
break;
}
}
int sum=0;
for(int i=0;i<nums.length-1;i++){
if(nums[i]<nums[i+1])
sum-=nums[i];
else
sum+=nums[i];
}
return sum+nums[nums.length-1];
}
public static void main(String arfs[]) {
RomanToInteger romanToInteger = new RomanToInteger();
romanToInteger.romanToInt("XII");
}
}