直接对原字符串进行排序,这样能保证相同的字母相邻,间隔为0.
#include <iostream> #include <vector> #include <algorithm> #define pii pair<int,int> #define fi first #define se second #define ll long long using namespace std; int main() { int t; cin >> t; while(t--) { string s; cin >> s; vector<char> v; for(auto x : s) v.push_back(x); sort(v.begin(), v.end()); for(auto x : v) cout << x; cout << endl; } return 0; }
You are given a decimal representation of an integer