제출 #1010343

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1010343		whatthemomooofun1729	Gap (APIO16_gap)	C++17	70 / 100	3098 ms	2812 KiB

gap

#include <iostream>
#include <algorithm>
#include <utility>
#include <vector>
#include <stack>
#include <map>
#include <queue>
#include <set>
#include <unordered_set>
#include <unordered_map>
#include <cstring>
#include <cmath>
#include <functional>
#include <cassert>
#include <iomanip>
#include <numeric>
#include <bitset>
#include <sstream>
#include <chrono>
#include <random>

#define ff first
#define ss second
#define PB push_back
#define sz(x) int(x.size())
#define rsz resize
#define fch(xxx, yyy) for (auto xxx : yyy) // abusive notation
#define all(x) (x).begin(),(x).end()
#define eps 1e-9

// more abusive notation (use at your own risk):
// #define int ll

using namespace std;
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vi = vector<int>;
using vll = vector<ll>;

// debugging
void __print(int x) {std::cerr << x;}
void __print(ll x) {std::cerr << x;} /* remember to uncomment this when not using THE MACRO */
void __print(unsigned x) {std::cerr << x;}
void __print(ull x) {std::cerr << x;}
void __print(float x) {std::cerr << x;}
void __print(double x) {std::cerr << x;}
void __print(ld x) {std::cerr << x;}
void __print(char x) {std::cerr << '\'' << x << '\'';}
void __print(const char *x) {std::cerr << '\"' << x << '\"';}
void __print(const string& x) {std::cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}
template<typename T, typename V> void __print(const pair<T, V> &x) {std::cerr << '{'; __print(x.ff); std::cerr << ", "; __print(x.ss); std::cerr << '}';}
template<typename T> void __print(const T& x) {int f = 0; std::cerr << '{'; for (auto &i: x) std::cerr << (f++ ? ", " : ""), __print(i); std::cerr << "}";}
void _print() {std::cerr << "]\n";}
template <typename T, typename... V> void _print(T t, V... v) {__print(t); if (sizeof...(v)) std::cerr << ", "; _print(v...);}
void println() {std::cerr << ">--------------------<" << endl;}
#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif

// templates
template <class T> bool ckmin(T &a, const T &b) {return b<a ? a = b, 1 : 0;}
template <class T> bool ckmax(T &a, const T &b) {return b>a ? a = b, 1 : 0;}
template <class T> using gr = greater<T>;
template <class T> using vc = vector<T>;
template <class T> using p_q = priority_queue<T>;
template <class T> using pqg = priority_queue<T, vc<T>, gr<T>>;
template <class T1, class T2> using pr = pair<T1, T2>;
mt19937_64 rng_ll(chrono::steady_clock::now().time_since_epoch().count());
int rng(int M) {return (int)(rng_ll()%M);} /*returns any random number in [0, M) */

// const variables
constexpr int INF = (int)2e9;
constexpr int MOD = 998244353;
constexpr long double EPS = (ld)1e-10, PI = 3.1415926535;
constexpr ll LL_INF = (ll)3e18;
constexpr int mod = (int)1e9 + 7;
constexpr ll inverse = 500000004LL; // inverse of 2 modulo 1e9 + 7

void setIO(const string& str) {// fast input/output
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (str.empty()) return;
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
}

#include "gap.h"
/*
int n;
vll v;

void MinMax(ll s, ll t, ll* mn, ll* mx) {
    //debug(s, t);
    auto it = upper_bound(all(v), s);
    if (it != v.end() && (*it) < t) *mn = *it;
    else *mn = -1;
    auto ti = lower_bound(all(v), t);
    if (ti != v.begin() && (*prev(ti)) > s) *mx = *prev(ti);
    else *mx = -1;
    //debug(*mn, *mx);
}*/

ll findGap(int T, int N) {
    if (T == 2) {
        ll mn, mx;
        MinMax(0, 1e18, &mn, &mx);
        ll range = mx - mn;
        ll average = (range + N - 2)/(N - 1);
        ll ans = average, l = mn, i, a, b;
        for (i = mn; i + average < mx; i += average + 1) {
            MinMax(i, i + average, &a, &b);
            if (a != -1) {
                ckmax(ans, a - l);
                l = b;
            }
        }
        MinMax(i, mx, &a, &b);
        if (a != -1) {
            ckmax(ans, a - l);
        }
        return ans;
    } else {
        ll l = 0, r = 1e18;
        set<ll> p;
        while (1) {
            ll mn, mx;
            MinMax(l, r, &mn, &mx);
            if (mn == -1) {
                break;
            }
            p.insert(mn);
            p.insert(mx);
            l = mn, r = mx;
        }
        ll ans = 0;
        for (auto i = p.begin(); next(i) != p.end(); i++) {
            ckmax(ans, *next(i) - *i);
        }
        return ans;
    }
}
/*
signed main() { // TIME YOURSELF !!!
    setIO("");
    int t;
    cin >> t;
    cin >> n;
    for (int i = 0; i < n; ++i) {
        int x;
        cin >> x;
        v.PB(x);
    }
    //debug(v);
    cout << findGap(1, n);
}*/

// TLE -> TRY NOT USING DEFINE INT LONG LONG
// CE -> CHECK LINE 45
// 5000 * 5000 size matrices are kinda big (potential mle)
// Do something, start simpler

컴파일 시 표준 에러 (stderr) 메시지

gap.cpp: In function 'void setIO(const string&)':
gap.cpp:89:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gap.cpp:90:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 70 / 70