Submission #557038

#	Time	Username	Problem	Language	Result	Execution time	Memory
557038		Ai7081	Detecting Molecules (IOI16_molecules)	C++17	19 / 100	1 ms	340 KiB

molecules

#include "molecules.h"
#include <bits/stdc++.h>
using namespace std;

vector<int> find_subset(int l, int u, vector<int> w) {
    long long now = w[0];
    int pl=0, pr=0;
    while (pl < w.size() && pr < w.size() && (now < l || now > u)) {
        if (now < l) {
            if (pr+1 < w.size()) now += w[++pr];
            else break;
        }
        else if (now > u) {
            if (pl < w.size()) now -= w[pl++];
            else break;
        }
    }
    vector<int> ret;
    if (l <= now && now <= u) {
        for (int i=pl; i<=pr; i++) ret.push_back(i);
    }
    return ret;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:8:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     while (pl < w.size() && pr < w.size() && (now < l || now > u)) {
      |            ~~~^~~~~~~~~~
molecules.cpp:8:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     while (pl < w.size() && pr < w.size() && (now < l || now > u)) {
      |                             ~~~^~~~~~~~~~
molecules.cpp:10:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 |             if (pr+1 < w.size()) now += w[++pr];
      |                 ~~~~~^~~~~~~~~~
molecules.cpp:14:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |             if (pl < w.size()) now -= w[pl++];
      |                 ~~~^~~~~~~~~~

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