阶乘计算题解
阶乘计算
https://ac.nowcoder.com/acm/problem/22205
include<stdio.h>
int count,sum,N;
int main(){
scanf("%d",&N);
for(int i = 1;i <= N;i ++){
count = 1;
for(int j = 1;j <= i;j ++)
count *= j;
sum += count;
}
printf("%d\n",sum);
}
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