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                [TOP] ### L1-5. 計算階乘和 時間限制 400 ms 內存限制 65536 kB 代碼長度限制 8000 B 判題程序 Standard 作者 陳越 對于給定的正整數N,需要你計算 S = 1! + 2! + 3! + ... + N!。 輸入格式: 輸入在一行中給出一個不超過10的正整數N。 輸出格式: 在一行中輸出S的值。 輸入樣例: 3 輸出樣例: 9 ### 代碼: ~~~ #include<stdio.h> int main(){ int N,i; int a=0,b=1; scanf("%d",&N); for(i=1;i<=N;i++) { b=b*i; a=a+b; } printf("%d",a); return 0; } ~~~ ``` #include <stdio.h> int main(void) { int m,i; scanf("%d",&m); int p = 1; int q; int max = p; for(i=2;i<=m;i++) { q = p*i; p = q; max += p; } printf("%d",max); return 0; } ```
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