Submission #403315

#	Time	Username	Problem	Language	Result	Execution time	Memory
403315		MDario	Detecting Molecules (IOI16_molecules)	C++11	100 / 100	55 ms	4032 KiB

molecules

#include "molecules.h"
#include<bits/stdc++.h>
using namespace std;
#define F first
#define S second
vector<int> find_subset(int l, int u, vector<int> z){
    vector<int> v;
    vector<pair<int, int>> w;
    unsigned int c=0, s=0, n=z.size();
    for(int i=0; i<n; i++){
        w.push_back({z[i], i});
    }
    sort(w.begin(), w.end());
    reverse(w.begin(), w.end());
    for(int i=0; i<n; i++){
        while(s<l&&c<n){
            s+=w[c].F;
            c++;
        }
        if(l<=s&&s<=u){
            for(int t=i; t<c; t++)v.push_back(w[t].S);
            break;
        }
        s-=w[i].F;
    }
    return v;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:10:19: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   10 |     for(int i=0; i<n; i++){
      |                  ~^~
molecules.cpp:15:19: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   15 |     for(int i=0; i<n; i++){
      |                  ~^~
molecules.cpp:16:16: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   16 |         while(s<l&&c<n){
      |               ~^~
molecules.cpp:20:13: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   20 |         if(l<=s&&s<=u){
      |            ~^~~
molecules.cpp:20:19: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   20 |         if(l<=s&&s<=u){
      |                  ~^~~
molecules.cpp:21:27: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare]
   21 |             for(int t=i; t<c; t++)v.push_back(w[t].S);
      |                          ~^~

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