Submission #714400

#	Time	Username	Problem	Language	Result	Execution time	Memory
714400		pashka	Potatoes and fertilizers (LMIO19_bulves)	C++14	20 / 100	985 ms	262144 KiB

bulves

#include <bits/stdc++.h>

#define long long long int
#define DEBUG
using namespace std;

// @author: pashka

int main() {
    ios::sync_with_stdio(false);

    int n;
    cin >> n;
    vector<int> a(n), b(n);
    for (int i = 0; i < n; i++) cin >> a[i] >> b[i];
    vector<int> aa, bb;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < a[i]; j++) aa.push_back(i);
        for (int j = 0; j < b[i]; j++) bb.push_back(i);
    }
    int na = aa.size();
    int nb = bb.size();
    vector<int> d(na + 1);
    for (int i = 0; i < nb; i++) {
        vector<int> dd(na + 1, INT_MAX);
        for (int j = i; j < na; j++) {
            dd[j + 1] = min(dd[j], d[j] + abs(aa[j] - bb[i]));
        }
        d = dd;
    }
    cout << d[na] << "\n";

    return 0;
}

• Subtask 1: 0 / 24
• Subtask 2: 0 / 10
• Subtask 3: 20 / 20
• Subtask 4: 0 / 10
• Subtask 5: 0 / 36