Submission #101287

#	Time	Username	Problem	Language	Result	Execution time	Memory
101287		chunghan	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include<bits/stdc++.h>
#include"molecules.h"

using namespace std;

typedef long long int lld;
typedef pair<int, int> pii;

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pii> p;
    vector<int> rst;
    vector<lld> S;
    int a = 0, b = 0, sum = 0;
    for (int i = 0; i < (int)w.size(); i++)
        p.push_back(pii(w[i], i));
    sort(p.begin(), p.end());
    S.push_back(p[0].first);
    for (int i = 1; i < (int)p.size(); i++)
        S.push_back(S[i-1] + p[i].first);
    while (1) {
        if (sum > u) sum -= S[a++];
        else if (b == w.size()) break;
        else if (sum < l) sum += arr[b++];
        else break;
    }
    for (int i = a; i <= b; i++)
        rst.push_back(p[i].second);
    return rst;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:22:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         else if (b == w.size()) break;
                  ~~^~~~~~~~~~~
molecules.cpp:23:34: error: 'arr' was not declared in this scope
         else if (sum < l) sum += arr[b++];
                                  ^~~