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main.cpp
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main.cpp
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#include <iostream>
#include <string>
#include <regex>
bool validBrackets(std::string bracketsStr,int previousLength){
if (bracketsStr.length()%2==1) {
return false;
}
std::regex parentheses("\\(\\)");
std::regex squareBrackets("\\[\\]");
std::regex braces("\\{\\}");
bracketsStr = std::regex_replace(bracketsStr,parentheses,"");
bracketsStr = std::regex_replace(bracketsStr,squareBrackets,"");
bracketsStr = std::regex_replace(bracketsStr,braces,"");
if(bracketsStr.length()==0) {
return true;
}
if(bracketsStr.length()==previousLength){
return false;
}
return validBrackets(bracketsStr,bracketsStr.length());
}
int main(int argc, char const *argv[]){
std::string bracketsStr = argv[1];
std::cout << bracketsStr << " is ";
if (validBrackets(bracketsStr,bracketsStr.length())) {
std::cout << "valid. :)" << std::endl;
}else{
std::cout << "invalid. :(" << std::endl;
}
return 0;
}