Looping programs that runs based on conditions

It contains some basic programming language programs that runs with loops

1. PROGRAMS WITH LOOPS 12-10-2023

2. To find the sum of n numbers #include < stdio.h > int main() { int num , count, sum = 0; printf ("Enter a positive integer: "); scanf ("%d", & num ); for(count = 1; count <= num ; ++count) { sum += count; } printf ("Sum = %d", sum); return 0; }

3. Display even numbers upto n #include < stdio.h > int main() { int num; printf ("Enter a number: "); scanf ("%d", &num); for (int i = 2; i <= num; i += 2) { printf ("%d ", i ); } return 0; } Enter a number: 9 2 4 6 8

4. Calculating factorial #include < stdio.h > int main() { int n, fact = 1; printf ("Enter a number: "); scanf ("%d", &n); for (int i = 1; i <= n; i ++) { fact *= i ; } printf ("Factorial of %d is %d\n", n, fact); return 0; } Enter a number: 6 Factorial of 6 is 720

5. #include < stdio.h > int main() { int num; do { printf ("Enter a number: "); scanf ("%d", &num); if (num > 0) { printf ("%d is a positive number.\ n",num ); } else if (num < 0) { printf ("%d is a negative number.\n"); } else { printf ("You entered 0.\n"); } } while (num != 0); return 0; } Enter a number: 8 is a positive number. Enter a number: Enter a number: 10 10 is a positive number. Enter a number: Enter a number: 0 You entered 0.