Submission #319687

#	Time	Username	Problem	Language	Result	Execution time	Memory
319687		northlake	Handcrafted Gift (IOI20_gift)	C++17	15 / 100	162 ms	19684 KiB

gift

#include<gift.h>
#include<bits/stdc++.h>

using namespace std;

int construct(int n, int r, vector<int> a, vector<int> b, vector<int> x) {
    // check requirement has length > 1
    for (int i = 0; i < r; i++) {
        if (a[i] == b[i]) {
            return 0;
        }
    } 

    // build alternating string
    string s {};
    if (n%2) s+= 'B';
    for (int i = 0; i < n/2; i++) {
        s += 'R';
        s += 'B';
    }
    craft(s);
    return 1;
}

• Subtask 1: 0 / 10
• Subtask 2: 15 / 15
• Subtask 3: 0 / 20
• Subtask 4: 0 / 25
• Subtask 5: 0 / 30