Submission #1001977

#	Time	Username	Problem	Language	Result	Execution time	Memory
1001977		ayankarimova	Detecting Molecules (IOI16_molecules)	C++14	0 / 100	1 ms	436 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
std::vector<int> find_subset(int l, int u, std::vector<int> w) {
    vector<int>ans;
    map<ll, ll>mp;
    map<ll, vector<ll>>mp1;
    for(int i=0; i<w.size(); i++){
        mp[w[i]]++;
        mp1[w[i]].push_back(i);
    }
    sort(w.begin(), w.end());
    ll num=(l+w[0]-1)/w[0];
    if(num<=mp[w[0]] && num*w[0]<=u && num*w[0]>=l){
        for(auto j:mp1[w[0]]){
            ans.push_back(j);
            if(ans.size()==num) break;
        }
        return ans;
    }
    if(num<=mp[w[w.size()-1]] && num*w[w.size()-1]<=u && num*w[w.size()-1]>=l){
        for(auto j:mp1[w[w.size()-1]]){
            ans.push_back(j);
            if(ans.size()==num) break;
        }
        return ans;
    }
    if(u-l>=1){
        for(int i=1; i<=mp[w[0]]; i++){
            ll cur=l-i*w[0];
            ll cur1=(cur+w[w.size()-1]-1)/w[w.size()-1];
            if(cur1<=mp[w[w.size()-1]] && i*w[0]+cur1*w[w.size()-1]>=l && i*w[0]+cur1*w[w.size()-1]<=u){
                for(auto j:mp1[w[0]]){
                    ans.push_back(j);
                    if(ans.size()==i) break;
                }
                for(auto j:mp1[w[w.size()-1]]){
                    ans.push_back(j);
                    if(ans.size()==i+cur1) break;
                }
                return ans;
            }
        }
    }
    return ans;
}
/*
{} []
7
13 14
2 2 3 3 3 4 4
*/

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:9:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 |     for(int i=0; i<w.size(); i++){
      |                  ~^~~~~~~~~
molecules.cpp:18:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   18 |             if(ans.size()==num) break;
      |                ~~~~~~~~~~^~~~~
molecules.cpp:25:26: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   25 |             if(ans.size()==num) break;
      |                ~~~~~~~~~~^~~~~
molecules.cpp:36:34: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |                     if(ans.size()==i) break;
      |                        ~~~~~~~~~~^~~
molecules.cpp:40:34: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   40 |                     if(ans.size()==i+cur1) break;
      |                        ~~~~~~~~~~^~~~~~~~

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