At the farewell party of a certain class, having n students, if each student of the class gave one gift each to exactly k other students of the class, the number of students in the class who received at least one gift each cannot be less thank.k + 1.n – k.n – 1.

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.Ms. Lee is counting the number of classroom supplies for her students.She finds that the number of each classroom supply can be related to the total number of students, s, in her class.Match each description with the expression it represents.4 × 𝑠 + 614 × 𝑠 − 614 × 𝑠 + 514 × 𝑠 − 514 × 𝑠 × 55 × 𝑠 − 4There are five more rulers thana fourth of the number of students.There are six less binders thana fourth of the number of students.There are four less erasers thanfive times the number of students.There are six more pencils thanfour times the number of students.

A certain group of friends met on a new year eve party and each person shook hands with everybody else in the group exactly once and the number of handshakes turned out to be 66. On the occasion of Pongal (harvest festival), if each person in this group sends a greeting card to every other person in the group, then how many cards are exchanged?

A Company has decided to give some gifts to all of its employees. For that, the company has given some rank to each employee. Based on that rank, the company has made certain rules to distribute the gifts.The rules for distributing the gifts are:Each employee must receive at least one gift.Employees having higher ranking get a greater number of gifts than their neighbours.What is the minimum number of gifts required by the company?Constraints:Constraints1 < T < 101 < N < 1000001 < Rank < 10^9InputFirst line contains integer T, denoting the number of test cases.For each test case:First line contains integer N, denoting the number of employees.Second line contains N space separated integers, denoting the rank of each employee.OutputFor each test case print the number of minimum gifts required on a new line.Example:ExampleInput251 2 1 5 221 2Output73

A Company has decided to give some gifts to all of its employees. For that, the company has given some rank to each employee. Based on that rank, the company has made certain rules to distribute the gifts.The rules for distributing the gifts are:Each employee must receive at least one gift.Employees having higher ranking get a greater number of gifts than their neighbours.What is the minimum number of gifts required by the company?Constraints:Constraints1 < T < 101 < N < 1000001 < Rank < 10^9InputFirst line contains integer T, denoting the number of test cases.For each test case:First line contains integer N, denoting the number of employees.Second line contains N space separated integers, denoting the rank of each employee.OutputFor each test case print the number of minimum gifts required on a new line.Example:ExampleInput251 2 1 5 221 2Output73Explanation:ExplanationEmployee # 1 whose rank is 1 gets one giftEmployee # 2 whose rank is 2 gets two giftsEmployee # 3 whose rank is 1 gets one giftEmployee # 4 whose rank is 5 gets two giftsEmployee # 5 whose rank is 2 gets one giftTherefore, total gifts required is 1 + 2 + 1 + 2 + 1 = 7Similarly, for testcase 2, adhering to rules mentioned above,Employee # 1 whose rank is 1 gets one giftEmployee # 2 whose rank is 2 gets two giftsTherefore, total gifts required is 1 + 2 = 3

A Company has decided to give some gifts to all of its employees. For that, the company has given some rank to each employee. Based on that rank, the company has made certain rules to distribute the gifts.The rules for distributing the gifts are:Each employee must receive at least one gift.Employees having higher ranking get a greater number of gifts than their neighbours.What is the minimum number of gifts required by the company?Constraints:Constraints1 < T < 101 < N < 1000001 < Rank < 10^9InputFirst line contains integer T, denoting the number of test cases.For each test case:First line contains integer N, denoting the number of employees.Second line contains N space separated integers, denoting the rank of each employee.OutputFor each test case print the number of minimum gifts required on a new line.Example:ExampleInput251 2 1 5 221 2Output73Explanation:ExplanationEmployee # 1 whose rank is 1 gets one giftEmployee # 2 whose rank is 2 gets two giftsEmployee # 3 whose rank is 1 gets one giftEmployee # 4 whose rank is 5 gets two giftsEmployee # 5 whose rank is 2 gets one giftTherefore, total gifts required is 1 + 2 + 1 + 2 + 1 = 7Similarly, for testcase 2, adhering to rules mentioned above,Employee # 1 whose rank is 1 gets one giftEmployee # 2 whose rank is 2 gets two giftsTherefore, total gifts required is 1 + 2 = 3Public Test Cases:# INPUT EXPECTED OUTPUT1 151 2 1 5 272 121 23