Submission #698516

#	Time	Username	Problem	Language	Result	Execution time	Memory
698516		1zaid1	Detecting Molecules (IOI16_molecules)	C++17	9 / 100	1 ms	304 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
using namespace std;

vector<int> find_subset(int l, int r, vector<int> v) {
    vector<int> a;
    int n = v.size(), sum = 0;
    for (int i = n-1; i >= 0; i--) {
        a.push_back(i);
        sum += v[i];
        if (sum >= l) break;
    } if (sum < l) return {};
    if (l <= sum && sum <= r) return a;
    for (int i = 0; i < a.size() && i < a[i]; i++) {
        sum += v[a[i]]-v[i];
        a[i] = i;
        if (sum <= r) break;
    }

    if (l <= sum && sum <= r) return a;
    else return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:14:23: 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 = 0; i < a.size() && i < a[i]; i++) {
      |                     ~~^~~~~~~~~~

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