Need help fixing trendtracker.cpp file below to pass all the provided tests on main.cpp

Create a new C++ source file named trendtracker.cpp that implements the Trendtracker class using an efficient two-vector-based data structure The following files have been given to you: 1. A C++ header file (trendtracker.h) declaring the Trendtracker class. 2. A C++ source file (main.cpp) containing a main function with tests. 3. A text file (tiny.txt) containing 1 hashtag. 4. A text file (small.txt) containing 4 hashtags. 5. A text file (hashtags.txt) containing 300000 hashtags. 6. A text file (tweeted.txt) containing 1500000 hashtags. ///Files can be found at http://andrewwinslow.com/3333/hwTT2/ /////////////////////////////////////////////////////////////////////////////////// 

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//trendtracker.cpp

#include "trendtracker.h"

#include

using namespace std;

// Creates a Trendtracker containing hashtags

// found in the provided file.

// The file is promised to have the following format:

//

// string1

// string2

// ...

// stringN

//

// where string1 < string2 < ... < stringN

//

// Must run in O(n) time.

Trendtracker(string filename)

{

}

// Return the number of hashtags in the Trendtracker.

//

// Must run in O(1) time.

int size()

{

return E.size();

}

// Optional helper method.

// Returns the index of E containing an Entry with hashtag ht.

// If no such hashtag is found, returns -1.

//

// Should run in O(log(n)).

int search(string ht)

{

}

// Adds 1 to the total number times a hashtag has been tweeted.

// If the hashtag does not exist in TrendTracker, does nothing.

//

// Must run in O(log(n)) time.

void Trendtracker::tweeted(string ht)

{

vector::iterator iter;

for (iter = E.begin(); iter != E.end(); iter++)

{

if (iter->hashtag != ht)

{

continue;

}

else if (iter->hashtag == ht)

{

iter->pop++;

return;

}

}

}

// Returns the number of times a hashtag has been tweeted.

// If the hashtag does not exist in Trendtracker, returns -1.

//

// Must run in O(log(n)) time.

int Trendtracker::popularity(string name)

{

for (vector::iterator it = E.begin(); it != E.end(); it++)

{

if (it->hashtag == name) //exists

return it->pop;

}

//does not exist

return -1;

}

// Returns a most-tweeted hashtag.

// If the Trendtracker has no hashtags, returns "".

//

// Must run in O(1) time.

string Trendtracker::top_trend()

{

int maxPop = 0;

string ht;

for (vector::iterator it = E.begin(); it != E.end(); it++)

{

if (it->pop >= maxPop)

{

ht = it->hashtag;

maxPop = it->pop;

}

}

return ht;

}

// Fills the provided vector with the 3 most-tweeted hashtags,

// in order from most-tweeted to least-tweeted.

//

// If there are fewer than 3 hashtags, then the vector is filled

// with all hashtags (in most-tweeted to least-tweeted order).

//

// Must run in O(1) time.

void Trendtracker::top_three_trends(vector& T)

{

vector::iterator iterator;

vector t;

T.clear();

for (int i = 0; i < size(); i++)

{

int j = 0;

for (iterator = t.begin(); iterator != t.end(); iterator++)

{

if (E[i].pop >= iterator->pop)

{

j = 1;

t.insert(iterator, E[i]);

if (t.size() >= 4)

{

t.pop_back();

}

break;

}

}

if (!j)

{

t.push_back(E[i]);

}

}

for (int i = 0; i < t.size(); i++)

{

T.push_back(t[i].hashtag);

}

}

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//trendtracker.h #ifndef TRENDTRACKER_H #define TRENDTRACKER_H #include  #include  #include  #include  using namespace std; class Trendtracker { // For the mandatory running times below: // n is the number of hashtags in the Trendtracker. public: // Creates a Trendtracker containing hashtags // found in the provided file. // The file is promised to have the following format: // // string1 // string2 // ... // stringN // // where string1 < string2 < ... < stringN // // Must run in O(n) time. Trendtracker(string filename); // Return the number of hashtags in the Trendtracker. // // Must run in O(1) time. int size(); // Adds 1 to the total number times a hashtag has been tweeted. // If the hashtag does not exist in TrendTracker, does nothing. // // Must run in O(log(n)) time. void tweeted(string ht); // Returns the number of times a hashtag has been tweeted. // If the hashtag does not exist in Trendtracker, returns -1. // // Must run in O(log(n)) time. int popularity(string name); // Returns a most-tweeted hashtag. // If the Trendtracker has no hashtags, returns "". // // Must run in O(1) time. string top_trend(); // Fills the provided vector with the 3 most-tweeted hashtags, // in order from most-tweeted to least-tweeted. // // If there are fewer than 3 hashtags, then the vector is filled // with all hashtags (in most-tweeted to least-tweeted order). // // Must run in O(1) time. void top_three_trends(vector &T); private: // A simple class representing a hashtag and // the number of times it has been tweeted. class Entry { public: string hashtag; int pop; }; // Optional helper method. // Returns the index of E containing an Entry with hashtag ht. // If no such hashtag is found, returns -1. // // Should run in O(log(n)). int search(string ht); // Entries sorted (lexicographically) by hashtag. vector E; // Stores indices of the (up to) three most-tweeted // entries in E. vector S; }; #endif 

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main.cpp

#include  #include  #include  #include  #include  #include "trendtracker.h" using namespace std; inline void _test(const char* expression, const char* file, int line) { cerr << "test(" << expression << ") failed in file " << file; cerr << ", line " << line << "." << endl; abort(); } #define test(EXPRESSION) ((EXPRESSION) ? (void)0 : _test(#EXPRESSION, __FILE__, __LINE__)) int main() { // Setup vector R; string s, line; // Test constructor, size(), popularity(), tweeted() Trendtracker T1("small.txt"); test(T1.size() == 4); test(T1.popularity("#algorithms") == 0); test(T1.popularity("#cs4all") == 0); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 0); test(T1.popularity("#C++") == 0); T1.tweeted("#programming"); test(T1.popularity("#algorithms") == 0); test(T1.popularity("#cs4all") == 0); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 1); test(T1.popularity("#C++") == 0); T1.tweeted("#programming"); test(T1.popularity("#algorithms") == 0); test(T1.popularity("#cs4all") == 0); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 2); test(T1.popularity("#C++") == 0); T1.tweeted("#programming"); test(T1.popularity("#algorithms") == 0); test(T1.popularity("#cs4all") == 0); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); T1.tweeted("#cs4all"); test(T1.popularity("#algorithms") == 0); test(T1.popularity("#cs4all") == 1); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); T1.tweeted("#algorithms"); test(T1.popularity("#algorithms") == 1); test(T1.popularity("#cs4all") == 1); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); T1.tweeted("#cs4all"); test(T1.popularity("#algorithms") == 1); test(T1.popularity("#cs4all") == 2); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); T1.tweeted("#datastructures"); test(T1.popularity("#algorithms") == 1); test(T1.popularity("#cs4all") == 2); test(T1.popularity("#datastructures") == -1); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); Trendtracker T2("small.txt"); T2.tweeted("#programming"); T2.tweeted("#programming"); T2.tweeted("#programming"); T2.tweeted("#programming"); T2.tweeted("#programming"); T2.tweeted("#C++"); T2.tweeted("#C++"); T2.tweeted("#C++"); T2.tweeted("#C++"); T2.tweeted("#cs4all"); T2.tweeted("#cs4all"); T2.tweeted("#cs4all"); T2.tweeted("#algorithms"); T2.tweeted("#algorithms"); test(T2.popularity("#algorithms") == 2); test(T2.popularity("#cs4all") == 3); test(T2.popularity("#programming") == 5); test(T2.popularity("#C++") == 4); // Enforce no usage of global variables test(T1.popularity("#algorithms") == 1); test(T1.popularity("#cs4all") == 2); test(T1.popularity("#programming") == 3); test(T1.popularity("#C++") == 0); // Test top_trend(), top_three_trends() Trendtracker T3("small.txt"); T3.top_three_trends(R); test(R.size() == 3); T3.tweeted("#programming"); test(T3.top_trend() == "#programming"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#programming"); T3.tweeted("#C++"); T3.tweeted("#C++"); test(T3.top_trend() == "#C++"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#C++"); test(R[1] == "#programming"); T3.tweeted("#algorithms"); T3.tweeted("#algorithms"); T3.tweeted("#algorithms"); test(T3.top_trend() == "#algorithms"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#algorithms"); test(R[1] == "#C++"); test(R[2] == "#programming"); T3.tweeted("#cs4all"); T3.tweeted("#cs4all"); T3.tweeted("#cs4all"); T3.tweeted("#cs4all"); test(T3.top_trend() == "#cs4all"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#cs4all"); test(R[1] == "#algorithms"); test(R[2] == "#C++"); // At this point: // cs4all: 4 // algorithms: 3 // C++: 2 // programming: 1 T3.tweeted("#programming"); T3.tweeted("#programming"); T3.tweeted("#programming"); T3.tweeted("#programming"); test(T3.top_trend() == "#programming"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#programming"); test(R[1] == "#cs4all"); test(R[2] == "#algorithms"); // At this point: // programming: 5 // cs4all: 4 // algorithms: 3 // C++: 2 T3.tweeted("#cs4all"); T3.tweeted("#cs4all"); T3.tweeted("#algorithms"); test(T3.top_trend() == "#cs4all"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#cs4all"); test(R[1] == "#programming"); test(R[2] == "#algorithms"); // At this point: // cs4all: 6 // programming: 5 // algorithms: 4 // C++: 2 for (int i = 0; i < 10000; ++i) T3.tweeted("#C++"); test(T3.top_trend() == "#C++"); T3.top_three_trends(R); test(R.size() == 3); test(R[0] == "#C++"); test(R[1] == "#cs4all"); test(R[2] == "#programming"); Trendtracker T4("hashtags.txt"); test(T4.size() == 300000); ifstream f; f.open("tweeted.txt"); assert(f.is_open()); // If this fails, you're missing tweeted.txt while (getline(f, line)) T4.tweeted(line); f.close(); test(T4.popularity("#programming") == 10); test(T4.popularity("#computer") == 9); test(T4.popularity("#is") == 8); test(T4.popularity("#very") == 7); test(T4.popularity("#fun") == 6); test(T4.popularity("#but") == 5); test(T4.popularity("#sometimes") == 5); test(T4.popularity("#can") == 5); test(T4.popularity("#be") == 5); test(T4.popularity("#challenging") == 5); test(T4.top_trend() == "#programming"); T4.top_three_trends(R); test(R[0] == "#programming"); test(R[1] == "#computer"); test(R[2] == "#is"); // Test a Trendtracker with a single hashtag Trendtracker T5("tiny.txt"); test(T5.size() == 1); test(T5.popularity("#solo") == 0); test(T5.popularity("#duo") == -1); T5.tweeted("#solo"); test(T5.popularity("#solo") == 1); test(T5.popularity("#duo") == -1); test(T5.top_trend() == "#solo"); T5.top_three_trends(R); test(R.size() == 1); test(R[0] == "#solo"); cout << "Assignment complete." << endl; }