#include <vector>
#include <map>
#include <iostream>
 
int main(int argc, char ** argv)
{
    const std::vector<int> scores = {76, 89, 150, 135, 200, 76, 12, 100, 150, 28, 178, 189,
                                     167, 200, 175, 150, 87, 99, 129, 149, 176, 200, 87,
                                     35, 157, 189
                                    };
    std::map<int, int> scoreCount;
    std::cout << "Number of Scores: " << scores.size() << "\n";
 
    for(auto score : scores)
    {
        scoreCount[score/25] ++;
        std::cout <<  score << " - scoreCount Index: " << score/25 << "\n";
    }
 
    for(auto const& slot : scoreCount)
    {
        auto low  = slot.first*25;
        auto high = low+24;
        std::cout << "Range " << low << "-" << high << ": " << slot.second << "\n";
    }
 
    int sum = 0;
    for(auto const& slot : scoreCount)
        sum += slot.second;
 
    if(sum < 26)
        printf("\n%d: Wrong number of scores counted.\n", sum);
    else
        printf("\nAll students accounted for.\n");
}
 

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