Submission #1173587

#	Time	Username	Problem	Language	Result	Execution time	Memory
1173587		Zero_OP	Topical (NOI23_topical)	C++20	100 / 100	369 ms	123528 KiB

Main

#include <bits/stdc++.h>

using namespace std;

#define FOR(i, l, r) for(int i = (l); i < (r); ++i)
#define ROF(i, r, l) for(int i = (r)-1; i >= (l); --i)

#define mp make_pair
#define mt make_tuple
#define ff first
#define ss second

#define all(v) begin(v), end(v)
#define rall(v) rbegin(v), rend(v)
#define sz(v) (int)v.size()
#define pb push_back
#define eb emplace_back
#define compact(v) v.erase(unique(all(v)), end(v))

#define dbg(x) "[" #x " = " << (x) << "]"

template<typename T>
      bool minimize(T& a, const T& b){
            if(a > b) return a = b, true;
            return false;
      }

template<typename T>
      bool maximize(T& a, const T& b){
            if(a < b) return a = b, true;
            return false;
      }

typedef long long ll;

using db = double;
using ull = unsigned long long;

using pi = pair<int, int>;
using pl = pair<ll, ll>;
using pd = pair<db, db>;

using vi = vector<int>;
using vl = vector<ll>;
using vc = vector<char>;
using vd = vector<db>;
using vb = vector<bool>;

using vpi = vector<pi>;
using vpl = vector<pl>;

void setIO(){
      ios_base::sync_with_stdio(0); cin.tie(0);
#ifdef LOCAL
      freopen("task.inp", "r", stdin);
      freopen("task.out", "w", stdout);
#endif
}

int main(){
      setIO();

      int N, K;
      cin >> N >> K;

      vector<vi> require(N, vi(K));
      FOR(i, 0, N) FOR(j, 0, K) cin >> require[i][j];

      vector<vi> profit(N, vi(K));
      FOR(i, 0, N) FOR(j, 0, K) cin >> profit[i][j];

      vector<vpi> onlines(K);
      vi cnt(N);

      stack<int> delay;
      FOR(i, 0, N){
            FOR(j, 0, K){
                  if(require[i][j] == 0){
                        ++cnt[i];
                        if(cnt[i] == K) delay.push(i);
                        continue;
                  } 

                  onlines[j].pb(mp(require[i][j], i));
            }
      }

      FOR(i, 0, K) sort(rall(onlines[i]));

      vi current(K, 0);

      int n_visited = 0;
      while(!delay.empty()){
            ++n_visited;
            int pos = delay.top(); delay.pop();

            FOR(i, 0, K){
                  current[i] += profit[pos][i];
                  while(!onlines[i].empty() && onlines[i].back().ff <= current[i]){
                        int c = onlines[i].back().ss;
                        ++cnt[c];
                        if(cnt[c] == K) delay.push(c);
                        onlines[i].pop_back();
                  }
            }
      }

      cout << n_visited << '\n';

      return 0;
}

• Subtask 1: 12 / 12
• Subtask 2: 28 / 28
• Subtask 3: 21 / 21
• Subtask 4: 39 / 39