Submission #228671

#	Time	Username	Problem	Language	Result	Execution time	Memory
228671		osaaateiasavtnl	Hiring (IOI09_hiring)	C++14	0 / 100	1599 ms	17712 KiB

hiring

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcount
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
const int N = 5e5 + 7;
int n, W;
struct Chel {
    int s, q, i;
} a[N];  
bool comp(Chel a, Chel b) {
    //return (a.s/a.q) < (b.s/b.q);
    return a.s * b.q < b.s * a.q;
}   
signed main() {
    #ifdef HOME
    freopen("input.txt", "r", stdin);
    #else
    #define endl '\n'
    ios_base::sync_with_stdio(0); cin.tie(0);
    #endif
    cin >> n >> W;
    for (int i = 0; i < n; ++i) {
        cin >> a[i].s >> a[i].q;
        a[i].i = i;
    }   
    sort(a, a + n, comp);
    vector <int> cur;
    int ans = 0;
    for (int i = 0; i < n; ++i) {
        cur.app(a[i].q);
        sort(all(cur));

        int sum = 0;
        for (int j = 0; j < cur.size(); ++j) {
            sum += cur[j];
            if (sum * a[i].s <= W * a[i].q) {
                ans = max(ans, j + 1);
            }   
        }   
    }   
    cout << ans << endl;
}

Compilation message (stderr)

hiring.cpp: In function 'int main()':
hiring.cpp:42:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (int j = 0; j < cur.size(); ++j) {
                         ~~^~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 0 / 28
• Subtask 3: 0 / 6
• Subtask 4: 0 / 6
• Subtask 5: 0 / 6
• Subtask 6: 0 / 6
• Subtask 7: 0 / 6
• Subtask 8: 0 / 6
• Subtask 9: 0 / 6