telankesi @ 2022-11-06 11:35:10
#include <stdio.h>
int main() {
int n;
long int S=0;
scanf("%d", &n);
for (int i = 1; i <= n; i++) {
int t=1;
for (int j = 1; j <= i; j++) {
t *= j;
}
S += t;
}
printf("%lld", S);
return 0;
}
by WA_sir @ 2022-11-06 11:44:57
@kakaluo_te 这道题要用高精度算法
by telankesi @ 2022-11-06 12:37:02
@WA_sir 为什么啊,我这样写不对吗
by a2lyaXNhbWUgbWFyaXNh @ 2022-11-06 12:47:26
@kakaluo_te 不对。bdfs高精度
by telankesi @ 2022-11-06 12:51:24
@S__B bdfs是什么
by a2lyaXNhbWUgbWFyaXNh @ 2022-11-06 12:55:24
@kakaluo_te 百度。