Submission #106423

#	Time	Username	Problem	Language	Result	Execution time	Memory
106423		DodgeBallMan	Detecting Molecules (IOI16_molecules)	C++14	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#include "molecules.h"
#define pii pair<int, int>
#define x first 
#define y second

using namespace std;

vector<pii> v;
vector<int> ans;

vector<int> find_subset( int l, int u, vector<int> w ) {
    for( int i = 0 ; i < w.size() ; i++ ) v.emplace_back( pii( w[i], i ) );
    sort( v.begin(), v.end() );
    int l = 0, r = 0;
    long long sum = 0;
    while( l < w.size() ) {
        while( r < w.size() && sum < l ) sum += ( long long ) v[r++].x;
        if( sum >= l && sum <= u ) {
            for( int i = l ; i < r ; i++ ) ans.emplace_back( v[i].y );
            return ans;
        }
        sum -= ( long long ) v[l++].x;
    }
    return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for( int i = 0 ; i < w.size() ; i++ ) v.emplace_back( pii( w[i], i ) );
                      ~~^~~~~~~~~~
molecules.cpp:15:9: error: declaration of 'int l' shadows a parameter
     int l = 0, r = 0;
         ^
molecules.cpp:17:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     while( l < w.size() ) {
            ~~^~~~~~~~~~
molecules.cpp:18:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         while( r < w.size() && sum < l ) sum += ( long long ) v[r++].x;
                ~~^~~~~~~~~~