Solved new problems from codeforces

4 files changed, 150 insertions, 0 deletions

diff --git a/codeforces/RecentActions/main b/codeforces/RecentActions/main
new file mode 100755
index 0000000..0db811c
--- /dev/null
+++ b/codeforces/RecentActions/main
diff --git a/codeforces/RecentActions/main.cpp b/codeforces/RecentActions/main.cpp
new file mode 100755
index 0000000..3ee1841
--- /dev/null
+++ b/codeforces/RecentActions/main.cpp
@@ -0,0 +1,119 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+using ll = long long;
+using pii = pair<int, int>;
+using vpi = vector<pii>;
+using vi = vector<int>;
+using vll = vector<long long>;
+using mpii = map<int, int>;
+using mpll = map<ll, ll>;
+using db = long double;
+
+#define pb push_back 
+#define all(x) (x).begin(), (x).end()
+#define rall(x) (x).rbegin(), (x).rend()
+#define lb lower_bound
+#define ub upper_bound
+
+#define ceil(a, b) (a + b - 1 / b)
+
+const int MOD = (int)1e9 + 7;
+const db PI = acos((db)-1);
+const int dx[4]{1, 0, -1, 0};
+const int dy[4]{0, 1, 0, -1};
+
+//pretty printing
+template<typename K, typename V>
+void printm(const map<K, V> &mp) {
+  cerr << "{" << endl;
+  for (auto p : mp) {
+    cerr << "  { " << p.first << " : " << p.second << " }\n";
+  }
+  cerr << "}" << endl;
+}
+template<typename T>
+void printv(const vector<T> &v) {
+  cerr << "[";
+  for (int i = 0; i < v.size(); i++) {
+    if (i == v.size() - 1) {
+      cerr << v[i];
+    } else {
+      cerr << v[i] << ", ";
+    }
+  }
+  cerr << "]\n";
+}
+
+template<typename T>
+void printvv(const vector<vector<T>> &v) {
+  cerr << "[\n";
+  for (auto &vec : v) {
+    cout << "  ";
+    printv(vec);
+  }
+  cerr << "]\n";
+}
+void print() {
+  cerr << "\n";
+}
+
+template<typename T, typename... TS>
+void print(T val, TS... vals) {
+  cerr << val << " ";
+  print(vals...);
+}
+
+
+
+/* stuff you should look for:
+  ---------------------------
+   * special cases (n=1?)
+   * int overflow, array bounds
+   * do smth instead of nothing and stay organized
+   * WRITE STUFF DOWN
+   * DON'T GET STUCK ON ONE APPROACH
+ */
+
+void solve() {
+  int n, m;
+  cin >> n >> m;
+  vi v(m);
+  deque<int> dq;
+  for (int i = 1; i <= n; i++) {
+    dq.pb(i);
+  }
+  unordered_map<int, int> mp;
+  for (auto &x : v) cin >> x;
+  for (int i = 0; i < m; i++) {
+    int back = dq.back();
+    auto it = find(all(dq), v[i]);
+    if (it != dq.end()) { // found
+      continue;
+    } else {
+      mp[back] = i + 1;
+      dq.pop_back();
+      dq.push_front(v[i]);
+    }
+  }
+  for (int i = 1; i <= n; i++) {
+    if (mp[i] != 0) {
+      cout << mp[i] << ' ';
+    } else {
+      cout << -1 << ' ';
+    }
+  }
+  cout << '\n';
+}
+
+int main () {
+  ios_base::sync_with_stdio(false);
+  cin.tie(NULL);
+  int tt;
+  cin >> tt;
+  while(tt--) {
+    solve();
+  }
+}
+
+
diff --git a/codeforces/RecentActions/main_input0.txt b/codeforces/RecentActions/main_input0.txt
new file mode 100644
index 0000000..a6aa411
--- /dev/null
+++ b/codeforces/RecentActions/main_input0.txt
@@ -0,0 +1,21 @@
+10
+1 1
+2
+3 2
+5 4
+4 5
+5 9 9 5 7
+5 5
+6 7 8 9 10
+3 4
+4 4 4 4
+4 4
+5 5 6 6
+3 5
+4 5 5 5 4
+4 20
+5 5 24 24 24 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20
+5 7
+7 8 7 11 7 12 10
+6 7
+8 11 7 8 8 8 12
diff --git a/codeforces/RecentActions/main_output0.txt b/codeforces/RecentActions/main_output0.txt
new file mode 100644
index 0000000..0594b15
--- /dev/null
+++ b/codeforces/RecentActions/main_output0.txt
@@ -0,0 +1,10 @@
+1
+-1 2 1
+-1 5 2 1
+5 4 3 2 1
+-1 -1 1
+-1 -1 3 1
+-1 2 1
+8 7 3 1
+7 6 4 2 1
+-1 -1 7 3 2 1