Submission #569498

#	Time	Username	Problem	Language	Result	Execution time	Memory
569498		penguin133	Detecting Molecules (IOI16_molecules)	C++14	19 / 100	1 ms	316 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
int P[200005];
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    for(int i=0;i<w.size();i++){
    	P[i+1] = P[i] + w[i];
	}
	for(int i=0;i<w.size();i++){
		int s = i, e = w.size() - 1, ans = s-1;
		while(s <= e){
			int m = (s + e)/2;
			if(P[m+1] - P[i] > u)e = m - 1;
			else  ans = m, s = m + 1;
		}
		if(P[ans+1] - P[i] >= l && P[ans+1] - P[i] <= u){
			vector<int>ans1;
			for(int j=i;j<=ans;j++)ans1.push_back(j);
			return ans1;
		}
	}
  return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:6:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 |     for(int i=0;i<w.size();i++){
      |                 ~^~~~~~~~~
molecules.cpp:9:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |  for(int i=0;i<w.size();i++){
      |              ~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 10 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31