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Game Trees

Game Tree is one of the applications of Binary Trees. For example the one implemented for the Tic-Tac-Toe Game. X | X | X O | O |     O |   | The game is between two players who makes moves ‘X’ and ‘O’ on a board of 3×3 positions. The players who wins is…

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HUFFMAN Algorithm and its implementation in C

Huffman trees are used as message encoding and message decoding trees which is the basic construct of compression and de. The specialty of Huffman tree is that – it helps to reduce the bit codes of each symbol in the message according to their relative frequency of occurrence. the same tree constructed could be used for…

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Traversing a Binary Tree in C

There are generally 3 traversal strategies for Binary Trees – INORDER, PREORDER and POSTORDER. For eg:, the inorder, preorder and postorder traversal of an expression tree gives the infix, prefix and postfix forms of the expression. Such a traversal could be used to evaluate the value of expression. Example 1 : Consider the following Binary Tree –…

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C program for Hailstones series

Hailstones is a sequence of numbers that could be generated from any positive number by performing a specific operation on it until it reaches 1. The fact is that any positive number will reach 1 if we perform this operation. If the number is even, we divide it by 2, otherwise we multiply the number…

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C program to generate random numbers in any range

Here is a C program to generate random numbers between any range of two digit numbers – #include #include main(){ int s, a, b, n, ran; srand(time(0)); // this is to set the seed to current time so we get different random numbers in each try printf(“\nEnter lower limit>>”); scanf(“%d”,&a); printf(“\nEnter upper limit>>”); scanf(“%d”,&b); printf(“\nEnter…

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for loops in C

The ‘for’  loop is another important looping structure which could replace ‘while’  and ‘do .. while’ loops. It has a special feature that the initialization, test condition and the increment or decrements of test variable could be placed in a single line following the ‘for’ keyword as shown below – for (initialization; test condition; change…

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C program to implement Russian Peasant

Here is a C program that I wrote years back to implement Russian Peasant method of an interesting multiplication technique – main(){ int a, b, sum = 0; printf(“\nEnter the two digits to be multiplied separated by space>> “); scanf(“%d %d”, &a, &b); printf(“%d “,a); printf(” %d\n”,b); do{ if(a % 2) sum += b; else…

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While Loop in C

Like do-while loop, While loop is the most commonly used looping construct to repeat a process or calculation for a set or collection of inputs or storage based on a condition. It is a looping technique when you want to execute the required process based on a condition for the entire input collection. Below is…

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Do – While Loops in C

Looping constructs is an important programming language technique to repeat a process or calculation for a set or collection of inputs or storage based on a condition. Do – While is a looping technique when you want to execute the required process for at least once and then check the condition for the rest of the…

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C Program to check for leap year

Here is a C program to check for leap year – main () { int year; printf(“Please enter any year as 4 digits>> “); scanf(“%d”, &year); if(year % 4 ==0 && year % 100 !=0 || year % 400 == 0) printf(“%d is a leap year \n”, year); else printf(“%d is not a leap year…

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Making decision in C program

Decision making is an important aspect of programming language that enables the programmer to arrive at a conclusion based on certain data processing, comparisons and conditional situations. In most programming language there are inbuilt functions and language constructs that enable implicit decision making. In other situations, it offers a combination of language constructs such as comparison…