diff --git a/codeforces/1074/.clang-format b/codeforces/1074/.clang-format
new file mode 100644
index 0000000..59cd6f1
--- /dev/null
+++ b/codeforces/1074/.clang-format
@@ -0,0 +1,17 @@
+BasedOnStyle: LLVM
+IndentWidth: 2
+UseTab: Never
+
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: None
+AllowShortLambdasOnASingleLine: None
+AllowShortBlocksOnASingleLine: Never
+AllowShortEnumsOnASingleLine: false
+AllowShortCaseExpressionOnASingleLine: false
+
+BreakBeforeBraces: Attach
+ColumnLimit: 100
+AlignAfterOpenBracket: Align
+BinPackArguments: false
+BinPackParameters: false
diff --git a/codeforces/1074/a.cc b/codeforces/1074/a.cc
new file mode 100644
index 0000000..b2e4942
--- /dev/null
+++ b/codeforces/1074/a.cc
@@ -0,0 +1,62 @@
+#include <bits/stdc++.h>  // {{{
+
+#include <version>
+#ifdef __cpp_lib_ranges_enumerate
+#include <ranges>
+namespace rv = std::views;
+namespace rs = std::ranges;
+#endif
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+using i32 = int32_t;
+using u32 = uint32_t;
+using i64 = int64_t;
+using u64 = uint64_t;
+using f64 = double;
+using f128 = long double;
+
+#if __cplusplus >= 202002L
+template <typename T>
+constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T>
+constexpr T MAX = std::numeric_limits<T>::max();
+#endif
+
+#ifdef LOCAL
+#define db(...) std::print(__VA_ARGS__)
+#define dbln(...) std::println(__VA_ARGS__)
+#else
+#define db(...)
+#define dbln(...)
+#endif
+//  }}}
+
+void solve() {
+  u32 n;
+  cin >> n;
+  for (u32 i = 1; i <= n; ++i) {
+    print("{}{}", i, " \n"[i==n]);
+  }
+}
+
+int main() {  // {{{
+  std::cin.exceptions(std::cin.failbit);
+#ifdef LOCAL
+  std::cerr.rdbuf(std::cout.rdbuf());
+  std::cout.setf(std::ios::unitbuf);
+  std::cerr.setf(std::ios::unitbuf);
+#else
+  std::cin.tie(nullptr)->sync_with_stdio(false);
+#endif
+  u32 tc = 1;
+  std::cin >> tc;
+  for (u32 t = 0; t < tc; ++t) {
+    solve();
+  }
+  return 0;
+}  // vim: set foldmethod=marker foldmarker={{{,}}}
diff --git a/codeforces/1074/b.cc b/codeforces/1074/b.cc
new file mode 100644
index 0000000..b3942f1
--- /dev/null
+++ b/codeforces/1074/b.cc
@@ -0,0 +1,66 @@
+#include <bits/stdc++.h>  // {{{
+
+#include <version>
+#ifdef __cpp_lib_ranges_enumerate
+#include <ranges>
+namespace rv = std::views;
+namespace rs = std::ranges;
+#endif
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+using i32 = int32_t;
+using u32 = uint32_t;
+using i64 = int64_t;
+using u64 = uint64_t;
+using f64 = double;
+using f128 = long double;
+
+#if __cplusplus >= 202002L
+template <typename T>
+constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T>
+constexpr T MAX = std::numeric_limits<T>::max();
+#endif
+
+#ifdef LOCAL
+#define db(...) std::print(__VA_ARGS__)
+#define dbln(...) std::println(__VA_ARGS__)
+#else
+#define db(...)
+#define dbln(...)
+#endif
+//  }}}
+
+void solve() {
+  u32 n;
+  cin >> n;
+  u64 x = 0, a;
+  for (u32 i = 1; i <= n; ++i) {
+    cin >> a;
+    x = max(x, a);
+  }
+
+  println("{}", x * n);
+}
+
+int main() {  // {{{
+  std::cin.exceptions(std::cin.failbit);
+#ifdef LOCAL
+  std::cerr.rdbuf(std::cout.rdbuf());
+  std::cout.setf(std::ios::unitbuf);
+  std::cerr.setf(std::ios::unitbuf);
+#else
+  std::cin.tie(nullptr)->sync_with_stdio(false);
+#endif
+  u32 tc = 1;
+  std::cin >> tc;
+  for (u32 t = 0; t < tc; ++t) {
+    solve();
+  }
+  return 0;
+}  // vim: set foldmethod=marker foldmarker={{{,}}}
diff --git a/codeforces/1074/c.cc b/codeforces/1074/c.cc
new file mode 100644
index 0000000..ba0251d
--- /dev/null
+++ b/codeforces/1074/c.cc
@@ -0,0 +1,78 @@
+#include <bits/stdc++.h> // {{{
+
+#include <version>
+#ifdef __cpp_lib_ranges_enumerate
+#include <ranges>
+namespace rv = std::views;
+namespace rs = std::ranges;
+#endif
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+using i32 = int32_t;
+using u32 = uint32_t;
+using i64 = int64_t;
+using u64 = uint64_t;
+using f64 = double;
+using f128 = long double;
+
+#if __cplusplus >= 202002L
+template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
+#endif
+
+#ifdef LOCAL
+#define db(...) std::print(__VA_ARGS__)
+#define dbln(...) std::println(__VA_ARGS__)
+#else
+#define db(...)
+#define dbln(...)
+#endif
+//  }}}
+
+void solve() {
+  u32 n;
+  cin >> n;
+  vector<i64> a(n);
+  for (auto &e : a)
+    cin >> e;
+
+  sort(begin(a), end(a));
+  a.erase(unique(begin(a), end(a)), end(a));
+
+  u32 ans = 1, streak = 1;
+
+  for (u32 i = 1; i < a.size(); ++i) {
+    if (i > 0 && a[i] - 1 == a[i - 1]) {
+      ++streak;
+    } else {
+      ans = max(ans, streak);
+      streak = 1;
+    }
+  }
+
+  ans = max(ans, streak);
+
+  println("{}", ans);
+}
+
+int main() { // {{{
+  std::cin.exceptions(std::cin.failbit);
+#ifdef LOCAL
+  std::cerr.rdbuf(std::cout.rdbuf());
+  std::cout.setf(std::ios::unitbuf);
+  std::cerr.setf(std::ios::unitbuf);
+#else
+  std::cin.tie(nullptr)->sync_with_stdio(false);
+#endif
+  u32 tc = 1;
+  std::cin >> tc;
+  for (u32 t = 0; t < tc; ++t) {
+    solve();
+  }
+  return 0;
+} // vim: set foldmethod=marker foldmarker={{{,}}}
diff --git a/codeforces/1074/d.cc b/codeforces/1074/d.cc
new file mode 100644
index 0000000..6a5d1a0
--- /dev/null
+++ b/codeforces/1074/d.cc
@@ -0,0 +1,83 @@
+#include <bits/stdc++.h> // {{{
+
+#include <version>
+#ifdef __cpp_lib_ranges_enumerate
+#include <ranges>
+namespace rv = std::views;
+namespace rs = std::ranges;
+#endif
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+using i32 = int32_t;
+using u32 = uint32_t;
+using i64 = int64_t;
+using u64 = uint64_t;
+using f64 = double;
+using f128 = long double;
+
+#if __cplusplus >= 202002L
+template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
+#endif
+
+#ifdef LOCAL
+#define db(...) std::print(__VA_ARGS__)
+#define dbln(...) std::println(__VA_ARGS__)
+#else
+#define db(...)
+#define dbln(...)
+#endif
+//  }}}
+
+bitset<2 * 100000 + 1> dirty;
+void solve() {
+  dirty.reset();
+  u32 n, m;
+  u64 h;
+  cin >> n >> m >> h;
+  vector<pair<u64, u64>> a(n);
+  for (u32 i = 0; i < n; ++i) {
+    cin >> a[i].first;
+    a[i].second = a[i].first;
+  }
+
+  u64 b, c;
+  for (u32 i = 0; i < m; ++i) {
+    cin >> b >> c;
+    --b;
+    if (dirty[b]) {
+      dirty[b] = false;
+      a[b].second = a[b].first;
+    }
+    a[b].second += c;
+    if (a[b].second > h) {
+      dirty.set();
+    }
+  }
+
+  for (u32 i = 0; i < n; ++i) {
+    print("{}{}", dirty[i] ? a[i].first : a[i].second, " \n"[i == n - 1]);
+  }
+}
+
+int main() { // {{{
+  std::cin.exceptions(std::cin.failbit);
+#ifdef LOCAL
+  std::cerr.rdbuf(std::cout.rdbuf());
+  std::cout.setf(std::ios::unitbuf);
+  std::cerr.setf(std::ios::unitbuf);
+#else
+  std::cin.tie(nullptr)->sync_with_stdio(false);
+#endif
+  u32 tc = 1;
+  std::cin >> tc;
+  for (u32 t = 0; t < tc; ++t) {
+    solve();
+  }
+  return 0;
+} // vim: set foldmethod=marker foldmarker={{{,}}}
diff --git a/codeforces/1074/e.cc b/codeforces/1074/e.cc
new file mode 100644
index 0000000..7506375
--- /dev/null
+++ b/codeforces/1074/e.cc
@@ -0,0 +1,69 @@
+#include <bits/stdc++.h> // {{{
+
+#include <version>
+#ifdef __cpp_lib_ranges_enumerate
+#include <ranges>
+namespace rv = std::views;
+namespace rs = std::ranges;
+#endif
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+using i32 = int32_t;
+using u32 = uint32_t;
+using i64 = int64_t;
+using u64 = uint64_t;
+using f64 = double;
+using f128 = long double;
+
+#if __cplusplus >= 202002L
+template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
+#endif
+
+#ifdef LOCAL
+#define db(...) std::print(__VA_ARGS__)
+#define dbln(...) std::println(__VA_ARGS__)
+#else
+#define db(...)
+#define dbln(...)
+#endif
+//  }}}
+
+void solve() {
+  u32 n, m, k;
+
+  cin >> n >> m >> k;
+
+  vector<u32> a(n), b(m);
+
+  for (u32 i = 0; i < n; ++i) {
+    cin >> a[i];
+  }
+
+  for (u32 i = 0; i < m; ++i) {
+    cin >> b[i];
+  }
+
+}
+
+int main() { // {{{
+  std::cin.exceptions(std::cin.failbit);
+#ifdef LOCAL
+  std::cerr.rdbuf(std::cout.rdbuf());
+  std::cout.setf(std::ios::unitbuf);
+  std::cerr.setf(std::ios::unitbuf);
+#else
+  std::cin.tie(nullptr)->sync_with_stdio(false);
+#endif
+  u32 tc = 1;
+  std::cin >> tc;
+  for (u32 t = 0; t < tc; ++t) {
+    solve();
+  }
+  return 0;
+} // vim: set foldmethod=marker foldmarker={{{,}}}