- 1#include 2 int main() 3 {
- 4 int a,
- b,
- s,
- t,
- i,
- j;
- 5
- while ((scanf("%d", &a) == 1)) 6 {
- 7
- if (a <= 12 && a >= 1) 8 {
- 9 t = 0;
- 10
- for (i = 1; i <= a; i++) 11 {
- 12 s = 1;
- 13
- for (j = 1; j <= i; j++) 14 {
- 15 s = s * j;
- 16
- }
- 17 t = t + s;
- 18
- }
- 19 printf("%d\n", t);
- 20
- }
- 21
- }
- 22
- }
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