Submission #370486

#	Time	Username	Problem	Language	Result	Execution time	Memory
370486		Fysty	Detecting Molecules (IOI16_molecules)	C++17	46 / 100	3 ms	748 KiB

molecules

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define F first
#define S second
#define pb push_back
vector<int> find_subset(int l, int u, vector<int> w)
{
    vector<int> ans;
    vector<pll> a;
    rep(i,w.size()) a.pb({w[i],i});
    sort(a.begin(),a.end());
    int n=w.size(),sum=0;
    for(int i=n-1;i>=0;i--)
    {
        sum+=a[i].F;
    }
    ll tot=0,cur=0;
    rep(i,n+1)
    {
        if(l>u) break;
        //cout<<i<<" "<<tot<<" ";
        while(i-1>=cur) sum-=a[cur].F,cur++;
        while(tot+sum>u&&cur<=n-1) sum-=a[cur].F,cur++;
        //cout<<cur<<" "<<sum<<"\n";
        if(tot+sum>=l&&tot+sum<=u)
        {
            rep(j,i) ans.pb(a[j].S);
            for(int j=cur;j<n;j++) ans.pb(a[j].S);
            break;
        }
        if(i==n) break;
        tot+=a[i].F;
    }
    return ans;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:5:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    5 | #define rep(i,n) for(int i=0;i<n;i++)
......
   14 |     rep(i,w.size()) a.pb({w[i],i});
      |         ~~~~~~~~~~             
molecules.cpp:14:5: note: in expansion of macro 'rep'
   14 |     rep(i,w.size()) a.pb({w[i],i});
      |     ^~~

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