题目传送门
1 /* 2 模拟：找到规律分别输出就可以了，简单但是蛮有意思的 3 */ 4 #include <cstdio> 5 #include <algorithm> 6 #include <cstring> 7 #include <cmath> 8 #include <string> 9 using namespace std; 10 11 const int MAXN = 2e2 + 10; 12 const int INF = 0x3f3f3f3f; 13 14 void print_An(int n) 15 { 16 for (int i=1; i<=n; ++i) 17 { 18 printf ("sin(%d", i); 19 if (i < n) printf ("%c", (i&1) ? '-' : '+'); 20 } 21 22 for (int i=1; i<=n; ++i) printf ("%c", ')'); 23 } 24 25 void work(int n) 26 { 27 for (int i=1; i<n; ++i) printf ("%c", '('); 28 print_An (1); printf ("%c%d", '+', n); 29 for (int i=n-1, j=1; i>=1; --i) 30 { 31 printf ("%c", ')'); print_An (++j); 32 printf ("%c%d", '+', i); 33 } 34 puts (""); 35 } 36 37 int main(void) //URAL 1149 Sinus Dances 38 { 39 // freopen ("F.in", "r", stdin); 40 41 int n; 42 while (scanf ("%d", &n) == 1) 43 { 44 work (n); 45 } 46 47 return 0; 48 }
