Submission #417943

#	Time	Username	Problem	Language	Result	Execution time	Memory
417943		aris12345678	Handcrafted Gift (IOI20_gift)	C++14	25 / 100	170 ms	21896 KiB

gift

#include <bits/stdc++.h>
#include "gift.h"
using namespace std;

const int mxN = 500005;

bool subtask1(vector<int> x, int r) {
    for(int i = 0; i < r; i++) {
        if(x[i] != 1)
            return false;
    }
    return true;
}

int construct(int n, int r, vector<int> a, vector<int> b, vector<int> x) {
    string ans = "";
    if(subtask1(x, r)) {
        for(int i = 0; i < n; i++)
            ans += 'R';
        craft(ans);
        return 1;
    }
    for(int i = 0; i < r; i++) {
        if(a[i] == b[i])
            return 0;
    }
    for(int i = 0; i < n; i++) {
        if(i%2 == 0)
            ans += 'R';
        else
            ans += 'B';
    }
    craft(ans);
    return 1;
}

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