Submission #289385

# Submission time Handle Problem Language Result Execution time Memory
289385 2020-09-02T15:48:24 Z RuDi24 Detecting Molecules (IOI16_molecules) C++14
Compilation error
0 ms 0 KB
#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

std::vector<int> find_subset(int l, int u, std::vector<int> w) {
	vector <int> ans;
	ans.reserve(w.size());
	sort(w.begin(),w.end());
	long long sum = 0;
	int it;
	for(it = 0;it < w.size() && sum + w[it] <= u;it++){
		sum += w[it];
		ans.emplace_back(it);
	}
	// cout<< l << ' ' << u << endl;
	// cout<<sum<<endl;
	// for(int i = 0;i < ans.size();i++) cout<<ans[i]<<' ';
	// cout<<endl;
	// if(sum > u) return vector<int> (0);
	if(sum >= l && sum <= u) return ans;
	for(int i = w.size()-1;i >= it;i--) {

		for(int j = 0;j < ans.size();j++){
			if(sum + (w[i] - w[ans[j]]) <= u && sum + (w[i] - w[ans[j]]) >= l){
				sum+= (w[i] - w[ans[j]]);
				ans[j] = i;
				return ans;
			}
		}
	}
	return vector <int> (0);
}
int main(){
	auto a = find_subset(15, 17, {6, 8, 8, 7});
	for(int i = 0;i < a.size();i++){
		cout<<a[i]<<' ';
	}
	cout<<endl;
	a = find_subset(14, 15, {5, 5, 6, 6});
	for(int i = 0;i < a.size();i++){
		cout<<a[i]<<' ';
	}
	cout<<endl;
	a = find_subset(10, 20, {15, 17, 16, 18});
	for(int i = 0;i < a.size();i++){
		cout<<a[i]<<' ';
	}
	cout<<endl;

}

Compilation message

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:11:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |  for(it = 0;it < w.size() && sum + w[it] <= u;it++){
      |             ~~~^~~~~~~~~~
molecules.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   23 |   for(int j = 0;j < ans.size();j++){
      |                 ~~^~~~~~~~~~~~
molecules.cpp: In function 'int main()':
molecules.cpp:35:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |  for(int i = 0;i < a.size();i++){
      |                ~~^~~~~~~~~~
molecules.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   40 |  for(int i = 0;i < a.size();i++){
      |                ~~^~~~~~~~~~
molecules.cpp:45:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   45 |  for(int i = 0;i < a.size();i++){
      |                ~~^~~~~~~~~~
/tmp/ccDe1ocp.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccjkYC4N.o:molecules.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status