字母转换

#include <iostream>
#include <string.h>
#include <stack>
using namespace std;
stack<char> minestack;
char data[25];
char plan[100];
char temp[100];
string aim;
string known;

bool TestPlan(int length)
{
    //cout<<"Enter"<<endl;
    int pos1 = 0,pos2 = 0;
    for(int i = 0;i < length; i++)
    if(plan[i]==‘i‘)
    {
        minestack.push(known[pos1]);
        pos1++;
    }
    else
    {
        if(!minestack.empty())
        {
            temp[pos2] = minestack.top();
            minestack.pop();
            pos2++;
        }
        else
        return false;
    }
    for(int i = 0;i < length/2;i++)
        if(temp[i]!=aim[i])
            return false;
    return true;

}

bool CountNum(int length)
{
    //cout<<"hello"<<endl;
    if(plan[0]==‘o‘)
    return false;
    int count = 0;
        for(int i = 0;i < length;i++)
            if(plan[i]==‘i‘)
                count++;
    if(count*2==length)
        return true;
    else
        return false;
}

void FindPlan(int length,int pos)
{
    if(pos==length)
    {
        if(CountNum(length))
        {
            if(TestPlan(length))
            {
                for(int i = 0;i < length;i++)
                    cout<<plan[i]<<" ";
                cout<<endl;
            }

        }

    }
    else
    {
        plan[pos] = ‘i‘;
        FindPlan(length,pos+1);
        plan[pos] = ‘o‘;
        FindPlan(length,pos+1);
    }
}

int main()
{
    cin>>known>>aim;
    //stack<char> minestack;
    //minestack.push(known[0]);
    //cout<<minestack.top()<<endl;
    int pos = 0;
    FindPlan(2*known.length(),pos);
    return 0;
}