Submission #883742

#	Time	Username	Problem	Language	Result	Execution time	Memory
883742		MattTheNub	A Plus B (IOI23_aplusb)	C++17	100 / 100	48 ms	5936 KiB

aplusb

#include <bits/stdc++.h>
using namespace std;

template <class T> using v = vector<T>;
#ifdef EVAL
#define dbg(...)
#define dbg2d(...)
#else
istream &__cin = cin;
#include "../../debug.h"
__cinwrapper __cin_wrapper;
#include "../../debug.cpp"
#endif

#include "aplusb.h"

using ll = long long;
using int2 = pair<int, int>;
using ll2 = pair<ll, ll>;

std::vector<int> smallest_sums(int N, std::vector<int> A, std::vector<int> B) {
  v<int> ptr(N);

  priority_queue<int2, v<int2>, greater<int2>> vals;
  for (int i = 0; i < N; i++) {
    vals.push({A[i] + B[0], i});
  }
  v<int> ans;
  for (int i = 0; i < N; i++) {
    auto [v, p] = vals.top();
    vals.pop();

    ans.push_back(v);

    if (++ptr[p] < N) {
      vals.push({A[p] + B[ptr[p]], p});
    }
  }

  return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40