Submission #115902

#	Time	Username	Problem	Language	Result	Execution time	Memory
115902		aminra	Broken Device (JOI17_broken_device)	C++14	100 / 100	36 ms	3328 KiB

Anna

#include <bits/stdc++.h>
#include "Annalib.h"
using namespace std;
typedef long long ll;
typedef long double ld;
const int MOD = (int)1e9 + 7;
const int MAXN = (int)153;
const int infint = (int)1e9 + 3;
const ll inf = (ll)1e18;
void Anna(int N, long long X, int K, int P[])
{
    vector <int> bad(N);
    for(int i = 0; i < K; i++)
        bad[P[i]] = 1;
    vector <int> ans(N, 0);
    for(int i = 0; i < N; i += 3)
    {
        int a = bad[i], b = bad[i + 1], c = bad[i + 2];
        if(a + b + c > 1)
            continue;
        if(a + b + c == 0)
		{
            if((X & 3) == 0)
                ans[i] = 1;
            else
			if((X & 3) == 2)
                ans[i] = ans[i + 2] = 1;
            else
			if((X & 3) == 1)
                ans[i + 1] = ans[i + 2] = 1;
            else
			if((X & 3) == 3)
                ans[i] = ans[i + 1] = ans[i + 2] = 1;
            X /= 4;
        }
        else 
		{
            if(b == 0)
			{
                if(X & 1)
				{
                    if(c == 0)
                        ans[i + 2] = 1;
                    else
                        ans[i] = ans[i + 1] = 1;
                }
                else
                    ans[i + 1] = 1;
                X /= 2;
            }
            else
			{
                if(X & 1) 
                    ans[i + 2] = 1, X /= 2;
                else
				{
                    if((X & 3) == 0)
                        ans[i] = 1;
                    else
					if((X & 3) == 2)
                        ans[i] = ans[i + 2] = 1;
                    X /= 4;
                }
            }
        }
    }
    for(int i = 0; i < N; i++)
        Set(i, ans[i]);
}
/*int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
}*/

Bruno

#include <bits/stdc++.h>
#include "Brunolib.h"
using namespace std;
typedef long long ll;
typedef long double ld;
const int MOD = (int)1e9 + 7;
const int MAXN = (int)153;
const int infint = (int)1e9 + 3;
const ll inf = (ll)1e18;
ll Bruno(int N, int A[])
{
	ll ans = 0;
	for (int i = N - 3; i >= 0; i -= 3)
		if(A[i] == 0 && A[i + 1] == 0 && A[i + 2] == 0)
			continue;
		else
		if(A[i] == 1 && A[i + 1] == 0 && A[i + 2] == 0)
			ans = 1LL * ans * 4;
		else
		if(A[i] == 0 && A[i + 1] == 1 && A[i + 2] == 1)
			ans = 1LL * ans * 4 + 1;
		else
		if(A[i] == 1 && A[i + 1] == 0 && A[i + 2] == 1)
			ans = 1LL * ans * 4 + 2;
		else
		if(A[i] == 1 && A[i + 1] == 1 && A[i + 2] == 1)
			ans = 1LL * ans * 4 + 3;
		else
		if(A[i] == 0 && A[i + 1] == 0 && A[i + 2] == 1)
			ans = 1LL * ans * 2 + 1;
		else
		if(A[i] == 0 && A[i + 1] == 1 && A[i + 2] == 0)
			ans = 1LL * ans * 2;
		else
			ans = 1LL * ans * 2 + 1;
	return ans;
}
/*int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
}*/

• Subtask 1: 100 / 100