#include <string>

#include <vector>

#include <algorithm>

using std::string;

using std::vector;

bool Compare(string lhs, string rhs)

{

string tmp1 = lhs + rhs;

string tmp2 = rhs + lhs;

return tmp1 < tmp2;

}

string PrintMinNumber(vector<int> numbers) {

string str;

vector<string> vec;

if (numbers.size() > 0)

{

for (int i = 0; i < numbers.size(); ++i)

{

char tmp[10] = { 0 };

sprintf_s(tmp, "%d", numbers[i]);

std::string tmpStr(tmp);

vec.push_back(tmpStr);

}

std::sort(vec.begin(), vec.end(), Compare);

for (int i = 0; i < vec.size(); ++i)

str += vec[i];

}

return str;

}

int main()

{

PrintMinNumber({ 3,32, 321 });

return 0;

}