codeforces: 1003

codeforces/1003/d.cc

@@ -0,0 +1,109 @@
+//  {{{
+#include <bits/stdc++.h>
+
+// https://codeforces.com/blog/entry/96344
+
+#pragma GCC optimize("O2,unroll-loops")
+#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
+
+using namespace std;
+
+template <typename T>
+constexpr T MIN = std::numeric_limits<T>::min();
+
+template <typename T>
+constexpr T MAX = std::numeric_limits<T>::max();
+
+template <typename T>
+[[nodiscard]] static T sc(auto&& x) {
+  return static_cast<T>(x);
+}
+
+template <typename T>
+[[nodiscard]] static T sz(auto&& x) {
+  return static_cast<T>(x.size());
+}
+
+template <typename... Args>
+void pr(std::format_string<Args...> fmt, Args&&... args) {
+  std::print(fmt, std::forward<Args>(args)...);
+}
+
+template <typename... Args>
+void pr(std::format_string<Args...> fmt) {
+  std::print(fmt);
+}
+
+template <typename... Args>
+void prln(std::format_string<Args...> fmt, Args&&... args) {
+  std::println(fmt, std::forward<Args>(args)...);
+}
+
+template <typename... Args>
+void prln(std::format_string<Args...> fmt) {
+  std::println(fmt);
+}
+
+void prln() {
+  std::println();
+}
+
+void prln(auto const& t) {
+  std::println("{}", t);
+}
+
+using ll = long long;
+using ld = long double;
+template <typename T>
+using vec = std::vector<T>;
+
+#define ff first
+#define ss second
+#define eb emplace_back
+#define pb push_back
+#define all(x) (x).begin(), (x).end()
+#define rall(x) (x).rbegin(), (x).rend()
+//  }}}
+
+void solve() {
+  ll n, m;
+  cin >> n >> m;
+  vec<vec<ll>> arrays(n, vec<ll>(m));
+  vec<pair<ll, int>> scores;
+  for (int i = 0; i < n; ++i) {
+    ll score = 0;
+    for (auto& e : arrays[i]) {
+      cin >> e;
+      score += e;
+    }
+    scores.eb(score, i);
+  }
+
+  sort(rall(scores));
+
+  ll ans = 0;
+  ll x = n * m;
+  for (int i = 0; i < sz<int>(scores); ++i) {
+    int index = scores[i].ss;
+    for (auto e : arrays[index]) {
+      ans += e * x--;
+    }
+  }
+
+  prln("{}", ans);
+}
+
+// {{{
+int main() {
+  cin.tie(nullptr)->sync_with_stdio(false);
+
+  int t = 1;
+  cin >> t;
+
+  while (t--) {
+    solve();
+  }
+
+  return 0;
+}
+// }}}