added geometry practice problems (#614)

SYury · web-flow · commit e1c68001df7a · 2020-10-02T17:45:31.000+02:00
diff --git a/src/geometry/delaunay.md b/src/geometry/delaunay.md
@@ -298,3 +298,8 @@ vector<tuple<pt, pt, pt>> delaunay(vector<pt> p) {
     return ans;
 }
 ```
+
+## Problems
+ * [TIMUS 1504 Good Manners](http://acm.timus.ru/problem.aspx?space=1&num=1504)
+ * [TIMUS 1520 Empire Strikes Back](http://acm.timus.ru/problem.aspx?space=1&num=1520)
+ * [SGU 383 Caravans](https://codeforces.com/problemsets/acmsguru/problem/99999/383)
diff --git a/src/geometry/intersecting_segments.md b/src/geometry/intersecting_segments.md
@@ -167,3 +167,6 @@ The queue of segments is the global variable `s`, a `set<event>`. Iterators that
 Two auxiliary functions `prev()` and `next()` are also introduced, which return iterators to the previous and next elements (or `end()`, if one does not exist).
 
 The constant `EPS` denotes the error of comparing two real numbers (it is mainly used when checking two segments for intersection).
+
+## Problems
+ * [TIMUS 1469 No Smoking!](https://acm.timus.ru/problem.aspx?space=1&num=1469)
diff --git a/src/geometry/nearest_points.md b/src/geometry/nearest_points.md
@@ -170,3 +170,4 @@ In fact, to solve this problem, the algorithm remains the same: we divide the fi
 * [CODEFORCES Team Olympiad Saratov - 2011 "Minimum amount" [difficulty: medium]](http://codeforces.com/contest/120/problem/J)
 * [Google CodeJam 2009 Final " Min Perimeter "[difficulty: medium]](https://code.google.com/codejam/contest/311101/dashboard#s=a&a=1)
 * [SPOJ #7029 CLOSEST "Closest Triple" [difficulty: medium]](https://www.spoj.com/problems/CLOSEST/)
+* [TIMUS 1514 National Park [difficulty: medium]](https://acm.timus.ru/problem.aspx?space=1&num=1514)
diff --git a/src/geometry/point-location.md b/src/geometry/point-location.md
@@ -287,4 +287,5 @@ vector<pair<int, int>> point_location(DCEL planar, vector<pt> queries)
 ```
 
 ## Problems
-[TIMUS1848 - Fly Hunt](http://acm.timus.ru/problem.aspx?space=1&num=1848&locale=en)
+ * [TIMUS 1848 Fly Hunt](http://acm.timus.ru/problem.aspx?space=1&num=1848&locale=en)
+ * [UVA 12310 Point Location](https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=297&page=show_problem&problem=3732)

Original file line number	Diff line number	Diff line change
`@@ -298,3 +298,8 @@ vector<tuple<pt, pt, pt>> delaunay(vector<pt> p) {`
`298`	`298`	`return ans;`
`299`	`299`	`}`
`300`	`300`	```
	`301`	`+`
	`302`	`+## Problems`
	`303`	`+ * [TIMUS 1504 Good Manners](http://acm.timus.ru/problem.aspx?space=1&num=1504)`
	`304`	`+ * [TIMUS 1520 Empire Strikes Back](http://acm.timus.ru/problem.aspx?space=1&num=1520)`
	`305`	`+ * [SGU 383 Caravans](https://codeforces.com/problemsets/acmsguru/problem/99999/383)`