What is meant by permutation in c++?

1.	What is meant by permutation in c++?
A.	To find all the combination of the range
B.	To find all the values & combination in the range
C.	To find all the values in the range
D.	All of above
E.	None of these
Answer» B. To find all the values & combination in the range

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What is the output of this program? <pre class="prettyprint lang-c"> #include <iostream> #include <vector> #include <algorithm> using namespace std; void Result(const vector<int>& VectorData) { for (size_t k = 0; k < VectorData.size(); ++k) { cout << VectorData[k] << ' '; } } int main() { vector<int> VectorData; VectorData.push_back(4); VectorData.push_back(8); sort(VectorData.begin(), VectorData.end()); Result(VectorData); while(next_permutation(VectorData.begin(), VectorData.end())) Result(VectorData); return 0; } </pre>
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What is the output of this program? <pre class="prettyprint lang-c">#include <iostream> #include <vector> #include <iterator> using namespace std; int main () { vector<int> VectorData; for (int k = 0; k <= 8; k++) VectorData.push_back(k); VectorData.erase (VectorData.begin() + 6); VectorData.erase (VectorData.begin(), VectorData.begin() + 4); for (unsigned k = 0; k < VectorData.size(); ++k) { cout << ' ' << VectorData[k]; } return 0; } </pre>

What is meant by permutation in c++?

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