Before seeing the solution make sure that you tried enough. Don’t paste the whole code, just find out the logic. If you stuck in trouble, just inform me on comment.
/**Bismillahir Rahmanir Rahim**/ #include <stdio.h> long long int fact(long long int n) { if(n == 0) return 1; return n*fact(n - 1); } int main() { long long int n, m; printf("Input a number (less than 20)\n"); scanf("%lld", &n); m = fact(n); printf("%lld! = %lld\n", n, m); return 0; }
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