Submission #385038

#	Time	Username	Problem	Language	Result	Execution time	Memory
385038		thecodingwizard	ČVENK (COI15_cvenk)	C++11	17 / 100	2 ms	492 KiB

cvenk

#include <bits/stdc++.h>

using namespace std;

using ll = long long;
#define ii pair<ll, ll>
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define F0R(i, n) for (int i = 0; i < n; i++)
#define FOR(i, a, b) for (int i = a; i < b; i++)
#define inf 1000000010

void clean(ii &a, ii &b) {
    for (int i = 30; ~i; i--) {
        if ((a.f & (1 << i)) && (b.f & (1 << i))) {
            a.f ^= (1 << i);
            b.f ^= (1 << i);
        } else if ((a.s & (1 << i)) && (b.s & (1 << i))) {
            a.s ^= (1 << i);
            b.s ^= (1 << i);
        } else if ((a.f & (1 << i)) || (b.f & (1 << i)) || (a.s & (1 << i)) || (b.s & (1 << i))) {
            break;
        }
    }
}

// true if left, false if up
// second number is distance from that axis
pair<bool, ll> calc(ii x) {
    int dir = -1;
    ll dist = 0;
    for (int i = 30; ~i; i--) {
        int curDir = -1;
        if (x.f & (1 << i)) {
            curDir = 1;
        } else if (x.s & (1 << i)) {
            curDir = 0;
        }
        if (dir == -1) dir = curDir;
        if (curDir != -1 && curDir != dir) break;
        if (curDir != -1) dist += (1 << i);
    }
    return make_pair(dir, dist);
}

int main() {
    cin.tie(0)->sync_with_stdio(0);

    int n; cin >> n; assert(n == 2);
    ii a, b; cin >> a.f >> a.s >> b.f >> b.s;

    clean(a, b);
    //cout << a.f << " "<< a.s << " " << b.f << " " << b.s << endl;

    pair<bool, ll> res = calc(a), res2 = calc(b);

    if (res.f == res2.f) {
        cout << a.f + a.s + b.f + b.s - 2*min(res.s, res2.s) << endl;
    } else {
        cout << a.f + a.s + b.f + b.s << endl;
    }

    return 0;
}

• Subtask 1: 17 / 17
• Subtask 2: 0 / 21
• Subtask 3: 0 / 22
• Subtask 4: 0 / 40