大佬，你输入的K可是一个**高精度的正整数**
by Chen·Jh @ 2019-06-02 15:02:44
@[cqsbz_cxy](/space/show?uid=185515)
试试`__int128`？
记得写一个快读，这个没有定义标准输入输出
by Jelly_Goat @ 2019-06-02 15:53:26
@[Chen·Jh](/space/show?uid=90534) 有啥区别。、。字节长度么
by cqsbz_cxy @ 2019-06-02 16:30:44
@[Jelly_Goat](/space/show?uid=122927) ```c
#include<bits/stdc++.h>
#include<cstring>
#include<string>
#include<iostream>
using namespace std;
long long ans[300002];
long long que1[300002];
long long que2[300002];
char num[1000],y[10000];
int K,M,x[300005],lon=1,len;
unsigned long long a;
string n;
char ans2[300005];
int main()
{
cin>>K>>M;
ans[1]=1;
sprintf(ans2,"%d",ans[1]);
n+=ans2;
int head1=1,head2=1;
for(int i=1;i<K;i++){
que1[i]=2*ans[i]+1;
que2[i]=4*ans[i]+5;
if(que1[head1]<que2[head2])
ans[i+1]=que1[head1++];
else
ans[i+1]=que2[head2++];
sprintf(ans2,"%d",ans[i+1]);
n+=ans2;
}
cout<<n<<endl;
len=n.length();
while(M>0)
{
for(int i=0;i<len;i++)
if(n[i]<n[i+1])
{
n.erase(i,1);
break;
}
else if(n[i]<n[i-1]&&n[i]<n[i+1])
n.erase(i,1);
M--;
}
if(n.size()==0)
cout<<"0"<<endl;
else
{
int m=0;
for(int i=0;i<n.length();i++)
{
if(n[i]-'0'!=0)
m=1;
if(m==1)
cout<<n[i]-'0';
}
if(m==0)
cout<<"0";
cout<<endl;
}
}
///这是改了之后的，应该能过了
by cqsbz_cxy @ 2019-06-02 16:32:23
```c
#include<bits/stdc++.h>
#include<cstring>
#include<string>
#include<iostream>
using namespace std;
long long ans[300002];
long long que1[300002];
long long que2[300002];
char num[1000],y[10000];
int K,M,x[300005],lon=1,len;
unsigned long long a;
string n;
char ans2[300005];
int main()
{
cin>>K>>M;
ans[1]=1;
sprintf(ans2,"%d",ans[1]);
n+=ans2;
int head1=1,head2=1;
for(int i=1;i<K;i++){
que1[i]=2*ans[i]+1;
que2[i]=4*ans[i]+5;
if(que1[head1]<que2[head2])
ans[i+1]=que1[head1++];
else
ans[i+1]=que2[head2++];
sprintf(ans2,"%d",ans[i+1]);
n+=ans2;
}
cout<<n<<endl;
len=n.length();
while(M>0)
{
for(int i=0;i<len;i++)
if(n[i]<n[i+1])
{
n.erase(i,1);
break;
}
else if(n[i]<n[i-1]&&n[i]<n[i+1])
n.erase(i,1);
M--;
}
if(n.size()==0)
cout<<"0"<<endl;
else
{
int m=0;
for(int i=0;i<n.length();i++)
{
if(n[i]-'0'!=0)
m=1;
if(m==1)
cout<<n[i]-'0';
}
if(m==0)
cout<<"0";
cout<<endl;
}
}
```
by cqsbz_cxy @ 2019-06-02 16:32:38
大佬，你能用字符串输入吗？
```cpp
#include <bits/stdc++.h>
using namespace std;
int main(){
string st;
cin>>st;
int k;
cin>>k;
while(k--){
for(int i=0;i<(int)st.size();i++){
if(st[i]>st[i+1]){
st.erase(i,1);
break;
}
}
while(st[0]=='0'&&st.size()!=1) st.erase(0,1);
}
cout<<st<<"\n";
return 0;
}
```
by LYR_ @ 2019-06-09 18:38:53