#include <bits/stdc++.h> using namespace std; #define pii pair<int, int> vector<int> smallest_sums(int n, vector<int> a, vector<int> b) { sort(b.begin(), b.end()); int ptr[n], p=0; vector<int> ans; priority_queue<pii, vector<pii>, greater<pii>> pq; for (int i=0; i<n; i++) pq.push({a[i] + b[0], i}); for (int i=0; i<n; i++) ptr[i] = 1; while (!pq.empty()) { if (ans.size() == n) break; ans.push_back(pq.top().first); int ind = pq.top().second; pq.pop(); if (ptr[ind] == n) continue; pq.push({a[ind] + b[ptr[ind]], ind}); ptr[ind]++; } return ans; }

aplusb.cpp: In function 'std::vector<int> smallest_sums(int, std::vector<int>, std::vector<int>)':
aplusb.cpp:13:20: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   13 |     if (ans.size() == n) break;
      |         ~~~~~~~~~~~^~~~
aplusb.cpp:7:15: warning: unused variable 'p' [-Wunused-variable]
    7 |   int ptr[n], p=0;
      |               ^