caochenshuo 2023-11-25 13:09:57 4 返回题目
#include<bits/stdc++.h> using namespace std; string s; int n; int main(){ cin>>s>>n; for(int i=1;i<=n;i++){ int j=0; while(j+1<s.size()&&s[j]<=s[j+1])j++; s.erase(j,1); } while(s.size()>1&&s[0]=='0')s.erase(0,1); cout<<s; return 0; }
