25 lines
454 B
C
Executable File
25 lines
454 B
C
Executable File
#include <stdio.h>
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int factorial(int x);
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int main() {
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/* testing code */
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printf("0! = %i\n", factorial(0));
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printf("1! = %i\n", factorial(1));
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printf("3! = %i\n", factorial(3));
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printf("5! = %i\n", factorial(5));
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}
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// define your function here (don't forget to declare it)
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int factorial(int x) {
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if (x == 0) {
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return 1;
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} else if (x >= 1) {
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return x*factorial(x-1);
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}
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return 0;
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} |