2073

 1 #include<iostream>
 2 #include<algorithm>
 3 #include<cstdio>
 4 #include<cstring>
 5 #include<string>
 6 using namespace std;
 7 
 8 const int maxn=2005;
 9 int vis[maxn];
10 
11 int main()
12 {
13     int t,k;
14     string str;
15     cin>>t;
16     while(t--)
17     {
18         int j;
19         cin>>str>>k;
20         while(k--)
21         {
22             j=0;
23             while(j<str.size()-1&&str[j]<=str[j+1])
24                 j++;
25             str.erase(j,1);
26         }
27         j=0;
28         while(str[j]=='0')
29             j++;
30         str.erase(0,j);
31         if(str.size()==0)
32             cout<<"0"<<endl;
33         else
34             cout<<str<<endl;
35     }
36     return 0;
37 }

 

posted @ 2017-02-28 13:22  ooozy  阅读(141)  评论(0编辑  收藏  举报