Submission #883345

#	Time	Username	Problem	Language	Result	Execution time	Memory
883345		marcid	Detecting Molecules (IOI16_molecules)	C++17	Compilation error	0 ms	0 KiB

molecules

#include <bits/stdc++.h>
#define int long long
#define ii pair<int,int>
#define iii tuple<int,int,int>
#define vb vector<bool>
#define vi vector<int>
#define vii vector<ii>
#define viii vector<iii>
#define pb push_back
#define eb emplace_back
#define all(v) v.begin(),v.end()
using namespace std;
vi find_subset(int l, int u, vi w) {
	int n = w.size();
	vii a(n);
	for (int i = 0; i < n; i++) {
		a[i]={w[i],i};
	} sort(all(a));
	int left = 0, right = 0;
	int curr = 0;
	while (right < n) {
		curr+=a[i].first;
		if (curr >= l) {
			while (curr > u && left < n) {
				curr-=a[left].first;
				left++;
			} if (l <= curr && curr <= u) {
				vi ret;
				for (int i = left; i <= right; i++) {
					ret.eb(a[i].second);
				} return ret;
			} else {
				right++;
			}
		} else {
			right++;
		}
	}
	return {};
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<long long int> find_subset(long long int, long long int, std::vector<long long int>)':
molecules.cpp:22:11: error: 'i' was not declared in this scope
   22 |   curr+=a[i].first;
      |           ^