```c #include int main() { int n,k,i; k=1; double sum; sum=0; scanf("%d",&n); for(i=1;i<=n;i++) {k=k*i; sum=sum+k;} printf("%.lf",sum); return 0; } ```

```c #include #include int max(int a,int b,int c); int min(int a,int b,int c); int a,b,c,q,w,e,i; char ch; int main() { q=max(a,b,c); w=min(a,b,c); e=a+b+c-q-w;…

```c #include #include int main() { int n, z=1, q=0; scanf("%d",&n); if (n%4==0) {printf("%d",z); } else printf("%d",q); return 0; } ```