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authormzuenni <michi.zuendorf@gmail.com>2022-06-27 17:19:28 +0200
committermzuenni <michi.zuendorf@gmail.com>2022-06-27 17:19:28 +0200
commit5ab8a5088b729a9953b8dff1b2a985dc8fb2098b (patch)
treeed40d6936c0e9eee40ba62751cbf99ecddbaddc2 /datastructures/persistent.cpp
parentadabbad9c51cf7cd3874bfde8eac1fbcf84fec10 (diff)
updated tcr
Diffstat (limited to 'datastructures/persistent.cpp')
-rw-r--r--datastructures/persistent.cpp19
1 files changed, 19 insertions, 0 deletions
diff --git a/datastructures/persistent.cpp b/datastructures/persistent.cpp
new file mode 100644
index 0000000..befecf7
--- /dev/null
+++ b/datastructures/persistent.cpp
@@ -0,0 +1,19 @@
+template<typename T>
+struct persistent {
+ int& time;
+ vector<pair<int, T>> data;
+
+ persistent(int& time, T value = {})
+ : time(time), data(1, {time, value}) {}
+
+ T get(int t) {
+ return prev(upper_bound(all(data),
+ pair<int, T>(t+1, {})))->second;
+ }
+
+ int set(T value) {
+ time+=2;
+ data.push_back({time, value});
+ return time;
+ }
+};