Sorting the vector of std::pair [duplicate]

Sorting the vector of std::pair [duplicate]

References

Reference NO 1

http://stackoverflow.com/questions/11665914/sorting-elements-of-vector-where-each-element-is-a-pair

Reference NO 2

http://stackoverflow.com/questions/18112773/sorting-a-vector-of-pairs

Reference NO 3

http://stackoverflow.com/questions/9237216/removing-duplicates-in-a-vector-of-strings

Reference NO 4

http://stackoverflow.com/questions/8259430/remove-duplicates-in-vector

Reference NO 5

http://stackoverflow.com/questions/17972609/c-vectorvectorintselect-only-entries-that-appear-just-once

Reference NO 6

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Reference NO 7

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Reference NO 8

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