Submission #295776

#	Time	Username	Problem	Language	Result	Execution time	Memory
295776		aZvezda	Detecting Molecules (IOI16_molecules)	C++14	100 / 100	62 ms	8296 KiB

molecules

#include <bits/stdc++.h>
using namespace std;
//#pragma GCC optimize ("O3")
//#pragma GCC target ("sse4")
#define endl "\n"
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
template<class T, class T2> inline bool chkmax(T &x, const T2 &y) { return x < y ? x = y, 1 : 0; }
template<class T, class T2> inline bool chkmin(T &x, const T2 &y) { return x > y ? x = y, 1 : 0; }
const ll mod = 1e9 + 7;
template<class T> inline void fix(T &x) {if(x >= mod | x <= -mod) {x %= mod;} if(x < 0) {x += mod;}}
#define out(x) cout << __LINE__ << ": " << (#x) << " = " << (x) << endl

#include "molecules.h"

std::vector<int> find_subset(int d, int u, std::vector<int> nt) {
    vector<pair<ll, int> > w;
    for(int i = 0; i < nt.size(); i ++) {
        w.push_back({nt[i], i});
    }
    sort(w.begin(), w.end());
    ll sum = 0, l = 0;
    for(int r = 0; r < w.size(); r ++) {
        sum += (ll)w[r].first;
        while(sum > u) {
            sum -= (ll)w[l].first;
            l ++;
        }
        if(d <= sum && sum <= u) {
            vector<int> ret;
            for(int i = l; i <= r; i ++) {
                ret.push_back(w[i].second);
            }
            return ret;
        }
    }
    return std::vector<int>(0);
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |     for(int i = 0; i < nt.size(); i ++) {
      |                    ~~^~~~~~~~~~~
molecules.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int r = 0; r < w.size(); r ++) {
      |                    ~~^~~~~~~~~~

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