Throughout this tutorial, we've learned the essentials of STL (Standard Template Library) in C++. We've deep-dived into various STL containers like vectors, deque, list, set, map, etc. We've also discussed using STL algorithms for manipulating data stored in these containers.

For a CS engineer interested particularly in AI, the ability to sort, find and manipulate data can come in extremely handy. It helps efficiently analyze the performance and accuracy of models. Let's put all that we learned into practice with a simple example of STL usage. We'll use a vector that represents the accuracy scores of different AI models. We can use the STL sort and find algorithm to sort these scores and find the best one.

The code provided here first declares a vector that contains different AI model accuracy scores. Then it sorts the scores in ascending order using the STL sort algorithm. Later, we use the find algorithm to identify the best model score, which is 95 in this case. Finally, it prints the score of the best performing AI model.

Congratulations on mastering the STL in C++, which is an invaluable tool for data handling, especially in fields such as finance and AI.

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#include <iostream>

#include <vector>

#include <algorithm>

using namespace std;

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int main() {

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  vector<int> AI_scores {78, 88, 90, 95, 85, 80};

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  sort(AI_scores.begin(), AI_scores.end());

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  auto it = find(AI_scores.begin(), AI_scores.end(), 95);

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  cout << "The accuracy score of the best performing AI model is " << *it << endl;

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  return 0;

}