ural 1341. Device

 1 /**
 2 Create By yzx - stupidboy
 3 */
 4 #include <cstdio>
 5 #include <cstring>
 6 #include <cstdlib>
 7 #include <cmath>
 8 #include <deque>
 9 #include <vector>
10 #include <queue>
11 #include <iostream>
12 #include <algorithm>
13 #include <map>
14 #include <set>
15 #include <ctime>
16 #include <iomanip>
17 using namespace std;
18 typedef long long LL;
19 typedef double DB;
20 #define For(i, s, t) for(int i = (s); i <= (t); i++)
21 #define Ford(i, s, t) for(int i = (s); i >= (t); i--)
22 #define Rep(i, t) for(int i = (0); i < (t); i++)
23 #define Repn(i, t) for(int i = ((t)-1); i >= (0); i--)
24 #define rep(i, x, t) for(int i = (x); i < (t); i++)
25 #define MIT (2147483647)
26 #define INF (1000000001)
27 #define MLL (1000000000000000001LL)
28 #define sz(x) ((int) (x).size())
29 #define clr(x, y) memset(x, y, sizeof(x))
30 #define puf push_front
31 #define pub push_back
32 #define pof pop_front
33 #define pob pop_back
34 #define ft first
35 #define sd second
36 #define mk make_pair
37 inline void SetIO(string Name)
38 {
39     string Input = Name+".in",
40     Output = Name+".out";
41     freopen(Input.c_str(), "r", stdin),
42     freopen(Output.c_str(), "w", stdout);
43 }
44 
45 
46 inline int Getint()
47 {
48     int Ret = 0;
49     char Ch = ‘ ‘;
50     bool Flag = 0;
51     while(!(Ch >= ‘0‘ && Ch <= ‘9‘))
52     {
53         if(Ch == ‘-‘) Flag ^= 1;
54         Ch = getchar();
55     }
56     while(Ch >= ‘0‘ && Ch <= ‘9‘)
57     {
58         Ret = Ret * 10 + Ch - ‘0‘;
59         Ch = getchar();
60     }
61     return Flag ? -Ret : Ret;
62 }
63 
64 const DB Pi = acos(-1.0), R = 6400.0;
65 DB Latitude, Longitude, Length;
66 
67 inline void Input()
68 {
69     cin >> Latitude >> Longitude >> Length;
70 }
71 
72 inline void Solve()
73 {
74     DB Delta =
75         Length / (R * cos(Latitude / 180 * Pi+ Length / R)) -
76         Length / (R * cos(Latitude / 180 * Pi));
77     Delta = Delta / (2 * Pi) * 360;
78     Longitude += Delta;
79     while(Longitude > 180.0) Longitude -= 360.0;
80     while(Longitude <= -180.0) Longitude += 360.0;
81     printf("%.3lf\n%.3lf\n", Latitude, Longitude);
82 }
83 
84 int main()
85 {
86     #ifndef ONLINE_JUDGE
87     SetIO("D");
88     #endif
89     Input();
90     Solve();
91     return 0;
92 }