Submission #697119

#	Time	Username	Problem	Language	Result	Execution time	Memory
697119		_Knyaz_	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	1 ms	212 KiB

molecules

#include <bits/stdc++.h>
#define ff first
#define sc second
using namespace std;
void in()
{
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
}
vector<int> find_subset(int l, int r, vector<int> w){
    vector<pair<int, int>> vec; vector<int> zero; zero.push_back(0);
    int sz = w.size(), sum = w[0];
    for(int i = 0; i < sz; i++) vec.push_back({w[i], i});
    sort(vec.begin(), vec.end());
    int L = 0, R = 1;
    while(R < sz){
        if(sum <= r) sum += vec[R++].ff;
        if(sum > r) sum -= vec[L++].ff;
        if(l <= sum && sum <= r){
            vector<int> ans;
            for(int i = L; i < R; i++) ans.push_back(vec[i].sc);
            return ans;
        }
    }
    return zero;
}

Compilation message (stderr)

molecules.cpp: In function 'void in()':
molecules.cpp:7:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
molecules.cpp:8:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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