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271.cpp
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271.cpp
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__________________________________________________________________________________________________
class Codec {
public:
// Encodes a list of strings to a single string.
string encode(vector<string>& strs) {
string res = "";
for (auto a : strs) {
res.append(to_string(a.size())).append("/").append(a);
}
return res;
}
// Decodes a single string to a list of strings.
vector<string> decode(string s) {
vector<string> res;
int i = 0;
while (i < s.size()) {
auto found = s.find("/", i);
int len = stoi(s.substr(i, found - i));
res.push_back(s.substr(found + 1, len));
i = found + len + 1;
}
return res;
}
};
__________________________________________________________________________________________________
class Codec {
public:
// Encodes a list of strings to a single string.
string encode(vector<string>& strs) {
string res = "";
for (auto a : strs) {
res.append(to_string(a.size())).append("/").append(a);
}
return res;
}
// Decodes a single string to a list of strings.
vector<string> decode(string s) {
vector<string> res;
while (!s.empty()) {
int found = s.find("/");
int len = stoi(s.substr(0, found));
s = s.substr(found + 1);
res.push_back(s.substr(0, len));
s = s.substr(len);
}
return res;
}
};
__________________________________________________________________________________________________
class Codec {
public:
// Encodes a list of strings to a single string.
string encode(vector<string>& strs) {
string res = "";
for (string str : strs) res += str + '\0';
return res;
}
// Decodes a single string to a list of strings.
vector<string> decode(string s) {
vector<string> res;
stringstream ss(s);
string t;
while (getline(ss, t, '\0')) {
res.push_back(t);
}
return res;
}
};