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#include<stdio.h>
#include<unordered_map>
#include<string>
#include<iostream>

using namespace std;

class List {
public:
    int originList[10000];
    unordered_map<int, int> changeMap = unordered_map<int,int>();
    bool isCopy;
};

unordered_map<string, List> hm = unordered_map<string, List>();

void init() {
    hm.clear();
}

void makeList(char mName[], int mLength, int mListValue[]) {
    List list;
    int i = 0;
    while (i < mLength) {
        list.originList[i] = mListValue[i];
        i++;
    }
    hm[mName] = list;
}

void copyList(char mDest[], char mSrc[], bool mCopy) {
    List srcList = hm[mSrc];
    if (!mCopy)
        hm[mDest] = srcList;
    else {
        List list;
        int i = 0;
        if (srcList.originList[i]) {
            list.originList[i] = srcList.originList[i];
            i++;
        }        
        list.changeMap = srcList.changeMap;
        list.isCopy = true;
        srcList.isCopy = true;
        hm[mDest] = list;
    }
}

void updateElement(char mName[], int mIndex, int mValue) {
    List list = hm[mName];
    if (list.isCopy)
        list.changeMap[mIndex] = mValue;
    else
        list.originList[mIndex] = mValue;
}

int element(char mName[], int mIndex) {
    List list = hm[mName];
    if (list.changeMap[mIndex]) {
        cout << "ok " << endl;
        return list.changeMap[mIndex];
    }
    return list.originList[mIndex];
}
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