답안 #744113

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
744113 2023-05-18T08:18:14 Z maomao90 Izvanzemaljci (COI21_izvanzemaljci) C++17
26 / 100
49 ms 8140 KB
// Hallelujah, praise the one who set me free
// Hallelujah, death has lost its grip on me
// You have broken every chain, There's salvation in your name
// Jesus Christ, my living hope
#include <bits/stdc++.h> 
using namespace std;

#define int ll

#define REP(i, s, e) for (int i = (s); i < (e); i++)
#define RREP(i, s, e) for (int i = (s); i >= (e); i--)
template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
typedef long long ll;
typedef long double ld;
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define SZ(_a) (int) _a.size()
#define pb push_back
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<ii> vii;
typedef vector<iii> viii;

#ifndef DEBUG
#define cerr if (0) cerr
#endif

const int INF = 1000000005;
const ll LINF = 1000000000000000005ll;
const int MAXN = 100005;

int n, k;
ii xy[MAXN];

namespace st1 {
    int main() {
        int mnx = INF, mxx = -INF, mny = INF, mxy = -INF;
        REP (i, 0, n) {
            mnto(mnx, xy[i].FI);
            mxto(mxx, xy[i].FI);
            mnto(mny, xy[i].SE);
            mxto(mxy, xy[i].SE);
        }
        cout << mnx << ' ' << mny << ' ' << max({mxx - mnx, mxy - mny, 1ll}) << '\n';
        return 0;
    }
}
namespace st2 {
    int pmnx[MAXN], pmxx[MAXN], pmny[MAXN], pmxy[MAXN];
    int smnx[MAXN], smxx[MAXN], smny[MAXN], smxy[MAXN];
    iii ans[2];
    int main() {
        int cost = 2 * INF;
        sort(xy, xy + n);
        pmnx[0] = INF, pmxx[0] = -INF, pmny[0] = INF, pmxy[0] = -INF;
        REP (i, 0, n) {
            mnto(pmnx[i], xy[i].FI);
            mxto(pmxx[i], xy[i].FI);
            mnto(pmny[i], xy[i].SE);
            mxto(pmxy[i], xy[i].SE);
            pmnx[i + 1] = pmnx[i];
            pmxx[i + 1] = pmxx[i];
            pmny[i + 1] = pmny[i];
            pmxy[i + 1] = pmxy[i];
        }
        smnx[n] = INF, smxx[n] = -INF, smny[n] = INF, smxy[n] = -INF;
        RREP (i, n - 1, 0) {
            smnx[i] = smnx[i + 1];
            smxx[i] = smxx[i + 1];
            smny[i] = smny[i + 1];
            smxy[i] = smxy[i + 1];
            mnto(smnx[i], xy[i].FI);
            mxto(smxx[i], xy[i].FI);
            mnto(smny[i], xy[i].SE);
            mxto(smxy[i], xy[i].SE);
        }
        REP (i, 0, n) {
            if (i + 1 != n && xy[i].FI == xy[i + 1].FI) {
                continue;
            }
            int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll}),
                rht = max({smxx[i + 1] - smnx[i + 1], smxy[i + 1] - smny[i + 1], 1ll});
            if (i + 1 == n) {
                rht = 1;
            }
            if (mnto(cost, max(lft, rht))) {
                ans[0] = {pmxx[i] - lft, pmny[i], lft};
                ans[1] = {smnx[i + 1], smny[i + 1], rht};
                if (i + 1 == n) {
                    ans[1] = {3e9, 3e9, 1};
                }
            }
        }
        sort(xy, xy + n, [&] (ii l, ii r) {
                return l.SE < r.SE;
                });
        pmnx[0] = INF, pmxx[0] = -INF, pmny[0] = INF, pmxy[0] = -INF;
        REP (i, 0, n) {
            mnto(pmnx[i], xy[i].FI);
            mxto(pmxx[i], xy[i].FI);
            mnto(pmny[i], xy[i].SE);
            mxto(pmxy[i], xy[i].SE);
            pmnx[i + 1] = pmnx[i];
            pmxx[i + 1] = pmxx[i];
            pmny[i + 1] = pmny[i];
            pmxy[i + 1] = pmxy[i];
        }
        smnx[n] = INF, smxx[n] = -INF, smny[n] = INF, smxy[n] = -INF;
        RREP (i, n - 1, 0) {
            smnx[i] = smnx[i + 1];
            smxx[i] = smxx[i + 1];
            smny[i] = smny[i + 1];
            smxy[i] = smxy[i + 1];
            mnto(smnx[i], xy[i].FI);
            mxto(smxx[i], xy[i].FI);
            mnto(smny[i], xy[i].SE);
            mxto(smxy[i], xy[i].SE);
        }
        REP (i, 0, n) {
            if (i + 1 == n || xy[i].SE == xy[i + 1].SE) {
                continue;
            }
            int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll}),
                rht = max({smxx[i + 1] - smnx[i + 1], smxy[i + 1] - smny[i + 1], 1ll});
            if (i + 1 == n) {
                rht = 1;
            }
            if (mnto(cost, max(lft, rht))) {
                ans[0] = {pmnx[i], pmxy[i] - lft, lft};
                ans[1] = {smnx[i + 1], smny[i + 1], rht};
                if (i + 1 == n) {
                    ans[1] = {3e9, 3e9, 1};
                }
            }
        }
        REP (z, 0, 2) {
            auto [a, b, c] = ans[z];
            cout << a << ' ' << b << ' ' << c << '\n';
        }
        return 0;
    }
}
namespace st5 {
    int cost;
    iii ans[3];
    int pmnx[MAXN], pmxx[MAXN], pmny[MAXN], pmxy[MAXN];
    int smnx[MAXN], smxx[MAXN], smny[MAXN], smxy[MAXN];
    void precomp(int s = 0, int e = n) {
        pmnx[s] = INF, pmxx[s] = -INF, pmny[s] = INF, pmxy[s] = -INF;
        REP (i, s, e) {
            mnto(pmnx[i], xy[i].FI);
            mxto(pmxx[i], xy[i].FI);
            mnto(pmny[i], xy[i].SE);
            mxto(pmxy[i], xy[i].SE);
            pmnx[i + 1] = pmnx[i];
            pmxx[i + 1] = pmxx[i];
            pmny[i + 1] = pmny[i];
            pmxy[i + 1] = pmxy[i];
        }
        smnx[e] = INF, smxx[e] = -INF, smny[e] = INF, smxy[e] = -INF;
        RREP (i, e - 1, s) {
            smnx[i] = smnx[i + 1];
            smxx[i] = smxx[i + 1];
            smny[i] = smny[i + 1];
            smxy[i] = smxy[i + 1];
            mnto(smnx[i], xy[i].FI);
            mxto(smxx[i], xy[i].FI);
            mnto(smny[i], xy[i].SE);
            mxto(smxy[i], xy[i].SE);
        }
    }
    void solve(int v) {
        { // 2 vertical partitions
            sort(xy, xy + n);
            precomp();
            int gd = -1;
            int stop = -3e9;
            ans[0] = {-3e9, -3e9, 1};
            REP (i, 0, n) {
                if (i + 1 != n && xy[i].SE == xy[i + 1].SE) {
                    continue;
                }
                int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll});
                if (lft <= v) {
                    ans[0] = {pmxx[i] - lft, pmny[i], lft};
                    gd = i;
                    stop = pmxx[i];
                }
            }
            precomp(gd + 1, n);
            int tcost = 2 * INF;
            REP (i, gd + 1, n) {
                if (i + 1 != n && xy[i].FI == xy[i + 1].FI) {
                    continue;
                }
                int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll}),
                    rht = max({smxx[i + 1] - smnx[i + 1], smxy[i + 1] - smny[i + 1], 1ll});
                if (i + 1 == n) {
                    rht = 1;
                } else if (stop + 1 + lft >= smnx[i + 1]) {
                    continue;
                }
                if (mnto(tcost, max(lft, rht))) {
                    ans[1] = {max(pmxx[i] - lft, stop + 1), pmny[i], lft};
                    ans[2] = {smnx[i + 1], smny[i + 1], rht};
                    if (i + 1 == n) {
                        ans[2] = {3e9, 3e9, 1};
                    }
                }
            }
            if (tcost <= v) {
                cost = v;
                return;
            }
        }
        /*
        { // 1 vertical partition followed by 1 horizontal partition
            sort(xy, xy + n);
            precomp();
            int gd = -1;
            ans[0] = {-3e9, -3e9, 1};
            REP (i, 0, n) {
                if (i + 1 != n && xy[i].SE == xy[i + 1].SE) {
                    continue;
                }
                int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll});
                if (lft <= v) {
                    ans[0] = {pmxx[i] - lft, pmny[i], lft};
                    gd = i;
                }
            }
            precomp(gd + 1, n);
            int tcost = 2 * INF;
            REP (i, gd + 1, n - 1) {
                if (xy[i].FI == xy[i + 1].FI) {
                    continue;
                }
                int lft = max({pmxx[i] - pmnx[i], pmxy[i] - pmny[i], 1ll}),
                    rht = max({smxx[i + 1] - smnx[i + 1], smxy[i + 1] - smny[i + 1], 1ll});
                if (stop + 1 + lft >= smnx[i + 1]) {
                    continue;
                }
                if (mnto(tcost, max(lft, rht))) {
                    ans[1] = {max(pmxx[i] - lft, stop + 1), pmny[i], lft};
                    ans[2] = {smnx[i + 1], smny[i + 1], rht};
                }
            }
            if (tcost <= v) {
                cost = v;
                return;
            }
        }
        */
    }
    int check(int v) {
        cost = 2 * INF;
        REP (z, 0, 4) {
            if (cost > v) {
                solve(v);
            }
            REP (i, 0, n) {
                int nx = -xy[i].SE, ny = xy[i].FI;
                xy[i] = {nx, ny};
            }
            REP (i, 0, 3) {
                auto [x, y, l] = ans[i];
                int nx = -y - l, ny = x;
                ans[i] = {nx, ny, l};

            }
        }
        return cost <= v;
    }
    int main() {
        int lo = 1, hi = 2 * INF;
        while (lo < hi) {
            int mid = lo + hi + 1 >> 1;
            if (check(mid)) {
                lo = mid;
            } else {
                hi = mid - 1;
            }
        }
        check(lo);
        REP (z, 0, 3) {
            auto [a, b, c] = ans[z];
            cout << a << ' ' << b << ' ' << c << '\n';
        }
        return 0;
    }
}

main() {
#ifndef DEBUG
    ios::sync_with_stdio(0), cin.tie(0);
#endif
    cin >> n >> k;
    REP (i, 0, n) {
        cin >> xy[i].FI >> xy[i].SE;
    }
    if (k == 1) {
        return st1::main();
    } else if (k == 2) {
        return st2::main();
    } else {
        return st5::main();
    }
}

Compilation message

izvanzemaljci.cpp: In function 'll st5::main()':
izvanzemaljci.cpp:285:31: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  285 |             int mid = lo + hi + 1 >> 1;
      |                       ~~~~~~~~^~~
izvanzemaljci.cpp: At global scope:
izvanzemaljci.cpp:301:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
  301 | main() {
      | ^~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 20 ms 1868 KB Output is correct
8 Correct 21 ms 1876 KB Output is correct
9 Correct 30 ms 1844 KB Output is correct
10 Correct 27 ms 1880 KB Output is correct
11 Correct 21 ms 1876 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 41 ms 8096 KB Output is correct
11 Correct 38 ms 8028 KB Output is correct
12 Correct 49 ms 8032 KB Output is correct
13 Correct 43 ms 8132 KB Output is correct
14 Correct 42 ms 8136 KB Output is correct
15 Correct 39 ms 8120 KB Output is correct
16 Correct 40 ms 8096 KB Output is correct
17 Correct 35 ms 7472 KB Output is correct
18 Correct 33 ms 7260 KB Output is correct
19 Correct 31 ms 6612 KB Output is correct
20 Correct 36 ms 7016 KB Output is correct
21 Correct 40 ms 8012 KB Output is correct
22 Correct 42 ms 8140 KB Output is correct
23 Correct 41 ms 8124 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 340 KB Integer 0 violates the range [1, 2*10^9]
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 8 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Incorrect 8 ms 340 KB Output isn't correct
2 Halted 0 ms 0 KB -