Roman numerals are represented by seven different symbols: I. V. X, L. C. D and M. Symbol I C M Value 1 For example, 2 is written as II in Roman numeral, just two ones added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II. Example 1: 5 Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as IX. There are six instances where subtraction is used: 10 50 100 500 1000 • I can be placed before V (5) and X (10) to make 4 and 9. • X can be placed before L (50) and C (100) to make 40 and 90. • C can be placed before D (500) and M (1000) to make 400 and 900. Given a roman numeral, convert it to an integer. 3456 Input: s= "III" Output: 3 Explanation: III = 3. What the solution for this code to start 1 class Solution 2 public: 3 } int romanToInt(strings) {
Roman numerals are represented by seven different symbols: I. V. X, L. C. D and M. Symbol I C M Value 1 For example, 2 is written as II in Roman numeral, just two ones added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II. Example 1: 5 Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as IX. There are six instances where subtraction is used: 10 50 100 500 1000 • I can be placed before V (5) and X (10) to make 4 and 9. • X can be placed before L (50) and C (100) to make 40 and 90. • C can be placed before D (500) and M (1000) to make 400 and 900. Given a roman numeral, convert it to an integer. 3456 Input: s= "III" Output: 3 Explanation: III = 3. What the solution for this code to start 1 class Solution 2 public: 3 } int romanToInt(strings) {
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Transcribed Image Text:Roman numerals are represented by seven different symbols: I, V, X, L. C, D and M.
Symbol
SLVXLCDM
I
с
M
Value
1
5
For example, 2 is written as II in Roman numeral, just two ones added together. 12 is written as XII, which is simply X + II. The number
27 is written as XXVII, which is XX + V + II.
Example 1:
10
50
Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not IIII. Instead, the number four is
written as IV. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as
IX. There are six instances where subtraction is used:
100
500
1000
• I can be placed before V (5) and X (10) to make 4 and 9.
X can be placed before L (50) and C (100) to make 40 and 90.
C can be placed before D (500) and M (1000) to make 400 and 900.
Given a roman numeral, convert it to an integer.
456
Input: s= "III"
Output: 3
Explanation: III = 3.
What the solution for this code to start
1 class Solution {
2 public:
3
}
int romanToInt(string s) {
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