题解 | #找位置#

#include <bits/stdc++.h>
#include <utility>
using namespace std;
class myChar {
  public:
    char c;
    vector<int>index;
};
int main() {
    string s;
    while (getline(cin, s)) {
        vector<myChar>m;
        for (int i = 0; i < s.length(); i++) {
            bool isFind = false;
            for(int j =0;j<m.size();j++)
                if(m[j].c == s[i]){
                    m[j].index.push_back(i);
                    isFind=true;
                }
            if (false == isFind) {
                myChar temp;
                temp.c = s[i];
                temp.index.push_back(i);
                m.push_back(temp);
            }
        }
        for (auto mychar : m) {
            if (mychar.index.size() > 1) {
                for (int i = 0; i < mychar.index.size(); i++) {
                    if (i<mychar.index.size()-1)cout<<mychar.c<<":"<<mychar.index[i]<<",";
                    else cout << mychar.c << ":" << mychar.index[i] << endl;
                }
            }

        }
    }
}
// 64 位输出请用 printf("%lld")