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 + 10;
const int INF = 0x3f3f3f3f;

void print_An(int n)
{
    for (int i=1; i<=n; ++i)
    {
        printf ("sin(%d", i);
        if (i < n)    printf ("%c", (i&1) ? '-' : '+');
    }

    for (int i=1; i<=n; ++i)    printf ("%c", ')');
}

void work(int n)
{
    for (int i=1; i<n; ++i)    printf ("%c", '(');
    print_An (1);    printf ("%c%d", '+', n);
    for (int i=n-1, j=1; i>=1; --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) == 1)
    {
        work (n);
    }

    return 0;
}