Write C++17 function v1tov2(v1) == v2.    
std::vector<int> v1{
0  , 1  , 2  , 3  , 4  , 5  , 6  , 7  , 8  , 9  , 10 , 11 , 12 , 13 , 14 , 15 ,
16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 ,
32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ,
};
stdstd::vector<std::vector<int>> v2{
{1  , 2  , 3  , 4  , 5  , 6  , 7  }, 
{8  , 9  , 10 , 11 , 12 , 13 , 14 },
{17 , 18 , 19 , 20 , 21 , 22 , 23 }, 
{24 , 25 , 26 , 27 , 28 , 29 , 30 },
{33 , 34 , 35 , 36 , 37 , 38 , 39 }, 
{40 , 41 , 42 , 43 , 44 , 45 , 46 },
}; Use words with all capital letters to highlight key points, but make sure that words with all capital letters appear less than 4 times
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