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# Untitled

a guest Jan 21st, 2016 534 Never
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1. #include <bits/stdc++.h>
2.
3. #define forn(i, n) for (int i = 0; i < int(n); i++)
4. #define ford(i, n) for (int i = int(n) - 1; i >= 0; i--)
5. #define fore(i, l, r) for (int i = int(l); i < int(r); i++)
6. #define correct(x, y, n, m) (0 <= (x) && (x) < (n) && 0 <= (y) && (y) < (m))
7. #define all(a) (a).begin(), (a).end()
8. #define sz(a) int((a).size())
9. #define pb(a) push_back(a)
10. #define mp(x, y) make_pair((x), (y))
11. #define x first
12. #define y second
13.
14. using namespace std;
15.
16. typedef long long li;
17. typedef long double ld;
18. typedef pair<int, int> pt;
19.
20. template<typename X> inline X abs(const X& a) { return a < 0? -a: a; }
21. template<typename X> inline X sqr(const X& a) { return a * a; }
22.
23. const int INF = int(1e9);
24. const li INF64 = li(1e18);
25. const ld EPS = 1e-9, PI = 3.1415926535897932384626433832795;
26.
27. #define x1 ____x1
28. #define y1 ____y1
29.
30. li x1, y1;
31. li x2, y2;
32.
34.     if (!(cin >> x1 >> y1)) return false;
35.     assert(cin >> x2 >> y2);
36.     return true;
37. }
38.
39. inline void solve() {
40.     cout << max(abs(x1 - x2), abs(y1 - y2)) << endl;
41. }
42.
43. int main() {
44. #ifdef SU1
45.     assert(freopen("input.txt", "rt", stdin));
46.     //assert(freopen("output.txt", "wt", stdout));
47. #endif
48.
49.     cout << setprecision(10) << fixed;
50.     cerr << setprecision(5) << fixed;
51.