This C program is designed to compute the factorial of a user-entered integer. The program employs a for loop to calculate the factorial and then displays the result. The user can continue inputting positive integers to obtain their factorials until a non-integer input is provided which terminates the program.
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To better understand this program and enhance your knowledge of C programming, you may find the following resources helpful:
- C Programming Absolute Beginner’s Guide (3rd Edition) by Perry and Miller
- This page provides C programming tutorials to reinforce your understanding of C programming
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #include <stdio.h> int fact(int n); int main(void) { int current; printf("Enter a positive integer [to terminate enter non-positive] > "); scanf("%d", ¤t); while (current > 0) { printf("The factorial of %d is %d\n", current, fact(current)); printf("Enter a positive integer [to terminate enter non-positive] > "); scanf("%d", ¤t); } return 0; } /* n is a positive integer. The function returns its factorial */ int fact(int n) { // loop control variable int lcv; // set to the product of the first lcv positive integers int p; for (p = 1, lcv = 2; lcv <= n; p = p * lcv, lcv++); return p; } |
