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Sep 18th, 2019
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  1. #include <string>
  2. #include <vector>
  3. #include<iostream>
  4. using namespace std;
  5.  
  6. string solution(string number, int k) {
  7. string answer = "";
  8. int n=number.size();
  9. int a=-1, mm=-1, nj;
  10. int nn=n-k; //nn : return값의 길이
  11. for(int i=0;i<nn;i++){
  12. for(int j=a+1;j<n-(nn-i)+1;j++){
  13. if(mm<number[j]-'0') { //string의 원소 문자를 int형으로 변환.
  14. mm=number[j]-'0'; //atoi는 string을 통으로 int로 변환할때.
  15. nj=j;
  16. }
  17. }
  18. answer.append(to_string(mm));
  19. a=nj;
  20. mm=-1; //mm초기화
  21. }
  22. return answer;
  23. }
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