Roman to Integer

Submission Detail

3999 / 3999 test cases passed.
 Status:

Accepted
Runtime: 14 ms
Memory Usage: 44.8 MB
Submitted: 1 week, 3 days ago
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Runtime Error Message:
Last executed input:
Input:
Output:
Expected:

Accepted Solutions Runtime Distribution

0.0
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
22.5
25.0
27.5
10
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java
You are here!
Your runtime beats 8.48 % of java submissions.
Runtime (ms)
Distribution (%)

0
5
10
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25
10
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40
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Accepted Solutions Memory Distribution

41500
41750
42000
42250
42500
42750
43000
43250
43500
43750
44000
2
4
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java
Memory (KB)
Distribution (%)

41500
41750
42000
42250
42500
42750
43000
43250
43500
43750
44000
2.5
5.0
7.5
Zoom area by dragging across this chart

Invite friends to challenge Roman to Integer

Submitted Code: 1 week, 3 days ago

Language: java

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class Solution {
public int romanToInt(String s) {
int integer = 0;
int index = 0;
while (index < s.length() && s.charAt(index) == 'M') {
integer += 1000;
index++;
}
if (index < s.length() && s.charAt(index) == 'C' && index+1 < s.length() && s.charAt(index+1) == 'M') {
integer += 900;
index += 2;
}
if (index < s.length() && s.charAt(index) == 'D') {
integer += 500;
index++;
}
// 400
if (index < s.length() && s.charAt(index) == 'C' && (index+1) < s.length() && s.charAt(index+1) == 'D') {
integer += 400;
index += 2;
}
while (index < s.length() && s.charAt(index) == 'C') {
integer += 100;
index++;
}
if (index < s.length() && s.charAt(index) == 'X' && (index+1) < s.length() && s.charAt(index+1) == 'C') {
integer += 90;
index += 2;
}
if (index < s.length() && s.charAt(index) == 'L') {
integer += 50;
index++;
}
if (index < s.length() && s.charAt(index) == 'X' && (index+1) < s.length() && s.charAt(index+1) == 'L') {
integer += 40;
index += 2;
}
while (index < s.length() && s.charAt(index) == 'X') {
integer += 10;
index++;
}
if (index < s.length() && s.charAt(index) == 'I' && (index+1) < s.length() && s.charAt(index+1) == 'X') {
integer += 9;
index += 2;
}
if (index < s.length() && s.charAt(index) == 'V') {
integer += 5;
index++;
}
if (index < s.length() && s.charAt(index) == 'I' && (index+1) < s.length() && s.charAt(index+1) == 'V') {
integer += 4;
index += 2;
}
while (index < s.length() && s.charAt(index) == 'I') {
integer += 1;
index++;
}
System.out.println(integer);
return integer;
}
}
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