模拟 URAL 1149 Sinus Dances

题目传送门

 /*
     模拟：找到规律分别输出就可以了，简单但是蛮有意思的
 */
 #include <cstdio>
 #include <algorithm>
 #include <cstring>
 #include <cmath>
 #include <string>
 using namespace std;

 const int MAXN = 2e2 + ;
 const int INF = 0x3f3f3f3f;

 void print_An(int n)
 {
     for (int i=; i<=n; ++i)
     {
         printf ("sin(%d", i);
         if (i < n)    printf ("%c", (i&) ? '-' : '+');
     }

     for (int i=; i<=n; ++i)    printf ("%c", ')');
 }

 void work(int n)
 {
     for (int i=; i<n; ++i)    printf ("%c", '(');
     print_An ();    printf ("%c%d", '+', n);
     for (int i=n-, j=; i>=; --i)
     {
         printf ("%c", ')');    print_An (++j);
         printf ("%c%d", '+', i);
     }
     puts ("");
 }

 int main(void)        //URAL 1149    Sinus Dances
 {
     // freopen ("F.in", "r", stdin);

     int n;
     while (scanf ("%d", &n) == )
     {
         work (n);
     }

     return ;
 }