A note from duthcode team.

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Refreshing Quote

When everything seems to be going against you, remember that the airplane takes off against the wind, not with it.

Henry Ford

Measurements For One Crossing

To measure traffic density at road junctions, cars passing through certain time intervals are counted and the average is calculated. Measurement data ...

Max And Place Element Array

Write a program in C language that will introduce N integers in a one-dimensional N-table (N = known) and will find the largest element as well as the...

Amicable Numbers

Amicable numbers are two different numbers so related that the sum of the proper divisors of each is equal to the other number. The smallest pair of ...

Simple Array Search

Write a program in C language that will insert N integers in a one-dimensional arrays of N size (N = known). Then an integer z will be entered to the...

Harshad Numbers

In recreational mathematics, a harshad number (or Niven number) in a given number base, is an integer that is divisible by the sum of its digits when ...

Square Random Number

The square of an integer N can be calculated by adding all integers from 1 to N and returning back to 1, example: 42 = 1 + 2 + 3 + 4 + 3 + 2 + 1 = 16...

Exams' Courses

A list of subjects for the exam period is to be prepared in a University Department. For each lesson we know: Course code (integer in area [1...

Good Primes

Some prime numbers, lets say Pn, are called good primes if they satisfy the following condition: Pn ^ 2> Pn-1 * Pn + 1 Some numbers like th...