Submission #834714

#	Time	Username	Problem	Language	Result	Execution time	Memory
834714		GordonRemzi007	Catfish Farm (IOI22_fish)	C++17	6 / 100	68 ms	9936 KiB

fish

#include <iostream>
#include <vector>
#define ll long long

using namespace std;

ll max_weights(int n, int m, vector<int> x, vector<int> y, vector<int> w) {
    ll res;
    if(n == 2) {
        ll r0 = 0, r1 = 0;
        for(ll i = 0; i < m; i++) {
            if(x[i]) r1+=w[i];
            else r0+=w[i];
        }
        res = max(r0, r1);
    } else {
        vector<ll> pref0(n), pref1(n);
        for(int i = 0; i < m; i++) {
            if(x[i]) pref1[y[i]] = w[i];
            else pref0[y[i]] = w[i];
        }
        for(int i = 1; i < n; i++) {
            pref0[i]+=pref0[i-1];
            pref1[i]+=pref1[i-1];
        }
        res = pref1[n-1];
        for(int i = 0; i < n; i++) res = max(res, pref0[i]+pref1[n-1]-pref1[i]);
    }
    return res;
}

• Subtask 1: 0 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16