Engineering Concepts

10 important links to practice and study for coding interviews : 1.  patterns to ace any coding interview:  https://lnkd.in/gBu9uZtz 2. Backtracking solution for 10 popular problems:  https://lnkd.in/gjpC9MCC 3. Dynamic Programming patterns for beginners:  https://lnkd.in/gevrxmmy 4. All Graph algorithms in one place:  https://lnkd.in/g2xdz7TY 5. When to use two pointers?:  https://lnkd.in/gqzEDmf6 6. Sliding Window algorithm made easy:  https://lnkd.in/gnDS8sJn 7. Ultimate Binary Search guide:  https://lnkd.in/gg_BB6ik 8. How to solve Linked List problems?:  https://lnkd.in/gp7FgTGx 9. Comprehensive Data Structure and Algorithm study guide:  https://lnkd.in/gcUnWavF 10. How to effectively use Leetcode:  https://lnkd.in/gEuRT4ik

Data Types in C Primitive Data Types in C: 1. int 2. float 3. char 4. double 5. void Derived Data Types in C: 1. array 2. pointer 3. function User-Defined Data Types in C: 1. structure 2. union 3. enum #include < stdio.h > #include < stdbool.h > // extern variable declaration extern int x; int main () { int age = 30 ; char name [] = " Embedded " ; float average = 66.78 ; char gender = ' M ' ; bool result = true ; printf ( "extern integer Data : %d \n " ,x); printf ( "Integer Data : %d \n " , age ); printf ( "String Data : %s \n " , name ); printf ( "Float Data : %f \n " , average ); printf ( "Character Data : %c \n " , gender ); printf ( "Boolean Data in integer form : %d \n " , result ); printf ( " size of int is = %u \n " , sizeof ( int )); printf ( " size of char is= %u \n " , sizeof ( char )); printf ( ...

 Reverse a string in c : #include < stdio.h > // standard input/output header file #include < string.h > // header file for string int stringLen ( char * str ) { int len = 0 ; for ( int i = 0 ; str [ i ]!= ' \0 ' ; i ++) { len ++; } return len ; } int main () { char str [ 100 ] = " ABC " ; char rev [ 100 ]; int strLength = stringLen ( str ); int j = 0 ; for ( int i = strLength - 1 ; i >= 0 ; i --) { rev [ j ++] = str [ i ]; } rev [ j ] = ' \0 ' ; printf ( " Reverse String is = %s " , rev ); printf ( " \n " ); return 0 ; } Related Posts :  basic-input/output-c-program Check a Prime Number Array in C Swap 2 Numbers Loops in C Data Types in C

Compare two strings in C : #include < stdio.h > #include < string.h > #include < stdbool.h > int main () { char str1 [] = " ABC " ; char str2 [] = " ABC " ; bool res ; int i = 0 ; while ( str1 [ i ] != ' \0 ' && str2 [ i ] != ' \0 ' ) { if ( str1 [ i ] == str2 [ i ]) res = false ; else res = true ; i ++; } printf ( " %d \n " , res ); return 0 ; } Related Posts :  basic-input/output-c-program Check a Prime Number Array in C Swap 2 Numbers Loops in C Reverse String in C

1. Swap 2 Numbers in C without using extra space or variable  #include < stdio.h > int main () { int a , b ; printf ( " Enter value of a and b " ); scanf ( " %d %d " , & a , & b ); printf ( " a and b before swap is = %d and %d \n " , a , b ); a = a + b ; b = a - b ; a = a - b ; printf ( " a and b after swap is = %d and %d \n " , a , b ); return 0 ; } 2. Swap 2 Numbers in C using extra variable #include < stdio.h > int main () { int a , b ; printf ( " Enter value of a and b " ); scanf ( " %d %d " , & a , & b ); printf ( " a and b before swap is = %d and %d \n " , a , b ); int c ; // temporary variable c = a ; a = b ; b = c ; printf ( " a and b after swap is = %d and %d \n " , a , b ); return 0 ; } Related Posts :  basic-input/output-c-program Array in C Check a Prime Number Loop...

In C programming, loops are used to execute a block of code repeatedly as long as a certain condition is met. There are three main types of loops in C: for loop while loop do-while loop 1. for Loop : The for loop is commonly used when you know beforehand how many times you want to execute a block of code. It consists of three parts: initialization, condition, and increment/decrement. Example :-   #include < stdio.h > int main () { int i = 0 ; for ( i = 0 ; i < 10 ; i ++) { printf ( " Value of i is = %d \n " , i ); } for ( i = 10 ; i > 0 ; i --) { printf ( " Value of i is = %d \n " , i ); } return 0 ; } nested-for Loop : #include < stdio.h > int main () { int n ; printf ( " Enter the count number to print table \n " ); scanf ( " %d " ,& n ); printf ( " Entered number is = %d \n " , n ); for ( int i = 1 ; i <= n ; i ++) { for ( i...

  C Program to check if a number is Prime or not : #include < stdio.h > #include < stdbool.h > int main () { int n ; bool prime ; printf ( " Enter the number \n " ); scanf ( " %d " , & n ); if ( n == 0 | n == 1 ) { printf ( " %d is not a Prime Number \n " , n ); return 0 ; } else { int i = 2 ; while ( i < n ) { if ( n % i == 0 ) { printf ( " %d is not a Prime Number \n " , n ); return 0 ; } i ++; } printf ( " %d is a Prime Number \n " , n ); } return 0 ; } Related Posts :  basic-input/output-c-program Array in C Swap 2 Numbers Loops in C Compare 2 Strings