Goal Parser Interpretation leetcode in c++
#include <iostream>
#include <string>
std::string interpret(std::string command) {
std::string result = "";
for (int i = 0; i < command.length(); i++) {
if (command[i] == 'G') {
result += "G";
} else if (command[i] == '(' && command[i + 1] == ')') {
result += "o";
i++;
} else if (command[i] == '(' && command[i + 1] == 'a' && command[i + 2] == 'l' && command[i + 3] == ')') {
result += "al";
i += 3;
}
}
return result;
}
int main() {
std::string command = "G()(al)";
std::string interpretation = interpret(command);
std::cout << interpretation << std::endl;
return 0;
}
The above code snippet is a C++ implementation of the "Goal Parser Interpretation" problem on LeetCode.
The problem requires interpreting a string command
that represents a command where 'G' means "G", '()' means "o", and '(al)' means "al". The goal is to interpret the command
string and return the corresponding interpreted string.
Function Explanation
The function interpret
takes a string command
as input and returns a string as the interpreted result.
- It initializes an empty string result
to store the interpreted result.
- It then iterates through each character in the command
string using a for loop.
- Inside the loop, it checks the current character using if-else statements to determine the interpretation.
- If the current character is 'G', it appends 'G' to the result
string.
- If the current character is '(' and the next character is ')', it appends 'o' to the result
string and increments the loop variable i
by 1 to skip the next character.
- If the current character is '(' and the next three characters are 'a', 'l', and ')', it appends 'al' to the result
string and increments the loop variable i
by 3 to skip the next three characters.
- After the loop, the function returns the result
string.
Main Function Explanation
The main
function demonstrates the usage of the interpret
function.
- It initializes a string command
with the value "G()(al)".
- It calls the interpret
function with command
as the argument and stores the returned interpreted string in the variable interpretation
.
- It prints the interpretation
string using std::cout
.
- Finally, it returns 0 to indicate successful execution.
This code implements the required interpretation of the command string as described in the problem statement. Feel free to ask if you have any further questions!