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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4.     long n, i;
  5.     long factorial;
  6.  
  7.     for( n = 1; n <= 20; n++ ) {
  8.         factorial = 1;
  9.  
  10.         for( i = 1; i <= n; i++ ) {
  11.             factorial = factorial * i;
  12.         }
  13.  
  14.         printf( "%ld! = %ld\n", n, factorial );
  15.     }
  16.  
  17.     return 0;
  18. }
Success #stdin #stdout 0s 5336KB
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stdin
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Standard input is empty
stdout
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1! = 1
2! = 2
3! = 6
4! = 24
5! = 120
6! = 720
7! = 5040
8! = 40320
9! = 362880
10! = 3628800
11! = 39916800
12! = 479001600
13! = 6227020800
14! = 87178291200
15! = 1307674368000
16! = 20922789888000
17! = 355687428096000
18! = 6402373705728000
19! = 121645100408832000
20! = 2432902008176640000
https://ideone.com/hsRE82
language:
C (gcc 8.3)
created:
10 days ago
visibility:
public

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