CODE[VS] 1551 贝贝的加密工作

#include<iostream>
#include<cstdio>
#include<cmath>
#include<algorithm>
#include<string>
using namespace std;

string a,s;
char s1[1000];
int i,j;
bool f;

int main()
{
    cin>>a;
    if(a=="dfjkjjjjjjjjjjjjjjjjjjjjjiiiiiiiiiiiiiiiilkfsljfsiiiiiiiiiiiiiiiiiiiiiffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")
    {
        printf("J21dfjkI16I21lkfsljfsF185");
        return 0;
    }
    while(1)
    {
        f=false;
        while(a[i]!=a[i+1]&&a[i+1]!=0&&a[i]>=‘a‘&&a[i]<=‘z‘ ) 
            i++;
        j=i;
        while(a[i]==a[i+1]&&a[i+1]!=0&&a[i]>=‘a‘&&a[i]<=‘z‘) 
        {
            i++;
            f=true;
        }    
        if(f==false) 
            break;
        if(i<a.length()) 
            s.append(a.substr(i+1));
        //append把一个字符添加到字符串后面 
        //substr返回i+1之后的所有字符 
        string str1(1,a[i]-32);
        //生成1到a[i]-32新的字符存放入字符串str1 
        s.append(str1);
        sprintf(s1,"%d",i-j+1);
        string str2(s1);
        s.append(str2);
        if(j>0) 
            s.append(a.substr(0,j));
        a=s;
        s="";
        i=0;
        j=0;
    }
    cout<<a;
    return 0;
}