Submission #498280

#	Time	Username	Problem	Language	Result	Execution time	Memory
498280		OrazB	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#define N 100005
#define ll long long int
#define pii pair <long long, long long>
#define pb push_back
#define ff first
#define ss second
using namespace std;

vector <int> find_subset(int l, int u, vector <int> w){
	ll sm = 0, tr = 0, ls = 0, r = 0, md = 0;
	vector <pii> v;
	map <ll, ll> p;
	vector <ll> ans;
	for (int i = 0; i < w.size(); i++) v.pb({w[i], i});
	sort (v.begin(), v.end());
	for (int i = 0; i < v.size(); i++) p[i] = p[i - 1] + v[i].ff;
	for (int i = 0; i < v.size(); i++){
		ls = i; r = v.size()-1;
		while (ls <= r){
			md = (ls + r) / 2;
			sm = p[md] - p[i - 1];
			if (sm >= l and sm <= u){
				for (int j = i; j <= md; j++) ans.pb(v[j].ss);
				tr = 1; break;
			}else if (sm > u) r = md - 1;
			else ls = md + 1;
		}		
		if (tr) break;
	}
	return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:15:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |  for (int i = 0; i < w.size(); i++) v.pb({w[i], i});
      |                  ~~^~~~~~~~~~
molecules.cpp:17:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |  for (int i = 0; i < v.size(); i++) p[i] = p[i - 1] + v[i].ff;
      |                  ~~^~~~~~~~~~
molecules.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |  for (int i = 0; i < v.size(); i++){
      |                  ~~^~~~~~~~~~
molecules.cpp:31:9: error: could not convert 'ans' from 'vector<long long int>' to 'vector<int>'
   31 |  return ans;
      |         ^~~
      |         |
      |         vector<long long int>