Submission #519755

#	Time	Username	Problem	Language	Result	Execution time	Memory
519755		yhlas	Detecting Molecules (IOI16_molecules)	C++14	0 / 100	1 ms	204 KiB

molecules

#include "bits/stdc++.h"
using namespace std;
int n,b,c,p[200005],e,l,r,md,jog,k;
vector<int> a,d;
vector<int> find_subset(int x, int y, vector<int> v){
	sort(v.begin(), v.end());
	p[0] = v[0];
	for (int i = 1; i < v.size(); i++) p[i] = p[i - 1] + v[i];
	for (int i = 0; i < v.size(); i++){
		a.push_back(i);
		if (x <= p[i] and p[i] <= y) return a;
	}
	a.clear();
	for (int i = 1; i < v.size(); i++){
		l = i,r = v.size() - 1,md,jog = -1;
		while (l <= r){
			md = (l + r) / 2;
			if (y < p[md] - p[i - 1]) r = md - 1;
			else if (x > p[md] - p[i - 1]) l = md + 1;
			else{
				e = i; jog = md;
				break;
			}
		}
		if (jog != -1) break;
	}
	for (int i = e; i <= jog; i++) a.push_back(i);
	return a;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |  for (int i = 1; i < v.size(); i++) p[i] = p[i - 1] + v[i];
      |                  ~~^~~~~~~~~~
molecules.cpp:9:20: 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 < v.size(); i++){
      |                  ~~^~~~~~~~~~
molecules.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |  for (int i = 1; i < v.size(); i++){
      |                  ~~^~~~~~~~~~
molecules.cpp:15:36: warning: right operand of comma operator has no effect [-Wunused-value]
   15 |   l = i,r = v.size() - 1,md,jog = -1;
      |                                    ^

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