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- #include <cstdio>
- #include <cmath>
- #include <cstring>
- #include <cctype>
- #include <cstdlib>
- #include <climits>
- #include <ctime>
- #include <cassert>
- #include <istream>
- #include <ostream>
- #include <iostream>
- #include <iomanip>
- #include <algorithm>
- #include <vector>
- #include <string>
- #include <numeric>
- #include <fstream>
- #include <sstream>
- #include <map>
- #include <set>
- #include <list>
- #include <stack>
- #include <queue>
- #include <deque>
- #include <complex>
- #include <limits>
- #include <bitset>
- #include <iterator>
- #include <utility>
- #include <functional>
- #include <tr1/unordered_map>
- #define eps (1e-9)
- #define vinf (1 << 28)
- #define nvinf (-(1 << 28))
- #define inf ((~0U) >> (1))
- #define pi (2.0 * acos(0.0))
- #define d_zero(x) (abs(x) < eps)
- #define lowbit(x) ((x) & (-(x)))
- #define sine(x) (sin(radians(x)))
- #define cosine(x) (cos(radians(x)))
- #define setbit(x, i) (x |= (1 << i))
- #define tangent(x) (tan(radians(x)))
- #define arcsine(x) (degrees((asin(x))))
- #define resetbit(x, i) (x &= (~(1 << i)))
- #define arccosine(x) (degrees((acos(x))))
- #define arctangent(x) (degrees((atan(x))))
- #define d_equals(a, b) (d_zero((a) - (b)))
- #define getbit(x, i) (x & (1 << i) ? 1 : 0)
- #define clr(ar) (memset(ar, 0, sizeof(ar)))
- #define radians(x) (((1.0 * x * pi) / 180.0))
- #define degrees(x) (((x * 180.0) / (1.0 * pi)))
- #define read() (freopen("lol.txt", "r+", stdin))
- #define out() (freopen("out.txt", "w+", stdout))
- #define write() (freopen("lol.txt", "w+", stdout))
- #define d_lesser(a, b) (!d_equals(a, b) && (a) < (b))
- #define d_greater(a, b) (!d_equals(a, b) && (a) > (b))
- #define dbg(x) (std::cout << #x << " = " << x << endl)
- #define flipbit(x, i) (getbit(x, i) ? (resetbit(x, i)) : (setbit(x, i)))
- #define twopow(x) ((((x & (x - 1)) == 0) && (x != 0)) ? (true) : (false))
- #define mod(n, m) ((n >= 0) ? (n % m) : ((abs(n) % m) == 0) ? 0 : (m - (abs(n) % m)))
- using namespace std;
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