C Program String Reverse Using strrev /* C Program Reverse a string using strrev() predefined function www.easycodebook.com */ #include <stdio.h> #include <string.h> int main() { char str[100]; printf("Please, Enter a string to reverse\n"); gets(str); strrev(str); printf("The Reverse string is : %s\n", str); return 0; } Output Please, Enter a string to reverse ABCDEF The Reverse… Read More »
Topic: /*C program to convert given string into tOOGLE cASE.*/ #include <stdio.h> int main() { char str[100]; int i; printf(“Enter a string to change into tOGGLE cASE : “); gets(str); /* toggle each string character if it is upper case, change to lower case if it is lower case, change into upper case*/… Read More »
C Program Convert String Upper Case /* C Program to convert given string into lower case */ #include <stdio.h> #include <string.h> int main() { char str[100]; printf(“Please, input a string to convert to lower case\n”); gets(str); printf(“The string in lower case is: %s\n”, strlwr(str)); return 0; } Output Please, input a string to convert to… Read More »
C Program Convert String Lower Case /* C Program to convert given string into lower case */ #include <stdio.h> #include <string.h> int main() { char str[100]; printf(“Please, input a string to convert to lower case\n”); gets(str); printf(“The string in lower case is: %s\n”, strlwr(str)); return 0; } Output Please, input a string to convert to… Read More »
C Program Find String Length /* C program to calculate and print length of given string without using built-in function. */ #include<stdio.h> #include<string.h> int main() { int i,length; char str[100]; printf("Enter a String to find its length:"); gets(str); i=0; while(str[i]!='\0') i++; printf("Using own code, The length of string '%s' is = %d",str,i); printf("\nUsing Predefined Function… Read More »
C Program Sum Factorial Series /* C program to calculate and print sum of the series 1!+2!+3!+…+n! C program to print the sum of factorials of natural numbers from 1 to n. */ #include<stdio.h> int main() { int i,n,sum; long fact=1; printf(“Enter the value of n: “); scanf(“%d”,&n); sum=0; /* loop to calculate sum from… Read More »
C Program Print Floyd Triangle Floyd’s triangle is named after Rober Floyd. Floyd’s Triangle is a right angled triangle made of natural numbers. First row contains only one number that is 1. Second row contains next to numbers, that is 2 and 3. Third row contains next 3 numbers that is 4, 5 and 6,… Read More »
C Program Check Palindrome Number #include <stdio.h> int main() { int n, reverseNum, lastDigit, num; printf(“Enter a number : “); scanf(“%d”,&num); n = num; reverseNum = 0; while(n > 0) { lastDigit = n % 10; reverseNum = (reverseNum * 10) + lastDigit; n = n / 10; } if(num == reverseNum) printf(“\n%d is a… Read More »
C Program Sum of Squares Series /* C program to calculate and print sum of the series 1^2+2^2+3^2+…+n^2 C program to print the sum of squares of all natural numbers from 1 to n. */ #include<stdio.h> int main() { int i,n,sum; printf(“Enter the value of n: “); scanf(“%d”,&n); sum=0; /* loop to calculate sum from… Read More »
C Program Sum Series N Natural Numbers /* C program to calculate and print sum of the series 1+2+3+4+…+n C program to print the sum of all natural numbers from 1 to n. */ #include<stdio.h> int main() { int i,n,sum; printf(“Enter the value of n: “); scanf(“%d”,&n); sum=0; /* loop to calculate sum from 1… Read More »