Submission #101298

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
101298	2019-03-18 08:01:15	chunghan	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	3 ms	384 KiB

molecules

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#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 += S[b++];
        else if ((sum >= l && sum <= u)) break;
    }
    if (b < w.size())
        for (int i = a+1; i <= b; i++)
            rst.push_back(p[i].second);
    return rst;
}
 
 
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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:26:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (b < w.size())
         ~~^~~~~~~~~~

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