답안 #580607

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
580607 2022-06-21T13:51:03 Z Sam_a17 Gap (APIO16_gap) C++14
30 / 100
43 ms 1872 KB
#define _CRT_SECURE_NO_WARNINGS
#include <bits/stdc++.h>
//#include "temp.cpp"
#include <cstdio>
using namespace std;

#ifndef ONLINE_JUDGE
#define dbg(x) cerr << #x <<" "; print(x); cerr << endl;
#else
#define dbg(x)
#endif

#define sz(x) (int((x).size()))
#define len(x) (int)x.length()
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define clr(x) (x).clear()
#define uniq(x) x.resize(unique(all(x)) - x.begin());
#define blt __builtin_popcount

#define pb push_back
#define popf pop_front
#define popb pop_back

void print(long long t) {cerr << t;}
void print(int t) {cerr << t;}
void print(string t) {cerr << t;}
void print(char t) {cerr << t;}
void print(double t) {cerr << t;}
void print(long double t) {cerr << t;}
void print(unsigned long long t) {cerr << t;}

template <class T, class V> void print(pair <T, V> p);
template <class T> void print(vector <T> v);
template <class T> void print(set <T> v);
template <class T, class V> void print(map <T, V> v);
template <class T> void print(multiset <T> v);
template <class T, class V> void print(T v[],V n) {cerr << "["; for(int i = 0; i < n; i++) {print(v[i]); cerr << " "; } cerr << "]";}
template <class T, class V> void print(pair <T, V> p) {cerr << "{"; print(p.first); cerr << ","; print(p.second); cerr << "}";}
template <class T> void print(vector <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(set <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T> void print(multiset <T> v) {cerr << "[ "; for (T i : v) {print(i); cerr << " ";} cerr << "]";}
template <class T, class V> void print(map <T, V> v) {cerr << "[ "; for (auto i : v) {print(i); cerr << " ";} cerr << "]";}

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
#define nl '\n'

// for grid problems
int dx[8] = {-1,0,1,0,1,-1,1,-1};
int dy[8] = {0,1,0,-1,1,1,-1,-1};

// lowest / (1 << 17) >= 1e5 / (1 << 18) >= 2e5 / (1 << 21) >= 1e6
void fastIO() {
  ios_base::sync_with_stdio(false);
  cin.tie(nullptr); cout.tie(nullptr);
}
// file in/out
void setIO(string str = "") {
  fastIO();

  if (str != "") {
    freopen((str + ".in").c_str(), "r", stdin);
    freopen((str + ".out").c_str(), "w", stdout);
  }
}
// Indexed Set
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
const long long inf = 1e18;
#include "gap.h"

long long findGap(int T, int N) {
  if(T == 1) {
    vector<long long> a(N);
    long long mn, mx;

    MinMax(0, inf, &mn, &mx);
    
    a[0] = mn, a[N - 1] = mx;
    long long lstMn = mn, lstMx = mx;
    for(int i = 1; i < N / 2; i++) {
      MinMax(lstMn + 1, lstMx - 1, &mn, &mx);
      a[i] = mn, a[N - i - 1] = mx;
      lstMn = mn, lstMx = mx;
    }

    if(N & 1) {
      int mid = N / 2;
      MinMax(lstMn + 1, max(lstMn + 1, lstMx - 1), &mn, &mx);
      assert(mn == mx);
      a[N / 2] = mn;
    }

    long long answ = 0;
    for(int i = 1; i < N; i++) {
      answ = max(answ, a[i] - a[i - 1]);
    }

    return answ;
  } else {
    vector<long long> a(N);
    long long mn, mx;

    MinMax(0, inf, &mn, &mx);
    // N - 2
    if(N == 2) {
      return mx - mn;
    }

    long long size = mx - mn, i;
    long long pos = (size + N - 2) / (N - 1), l = mn, answ = 0;
    for(i = mn; i < mx; i += pos) {
      // i: i + pos;
      MinMax(i, i + pos, &mn, &mx);
      assert(mn != -1);
      answ = max(answ, mn - l);
      l = mx;
    }

    answ = max(answ, mx - l);
    return answ;
  }

  return 0;
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:88:11: warning: unused variable 'mid' [-Wunused-variable]
   88 |       int mid = N / 2;
      |           ^~~
gap.cpp: In function 'void setIO(std::string)':
gap.cpp:63:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   63 |     freopen((str + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
gap.cpp:64:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |     freopen((str + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 1 ms 208 KB Output is correct
7 Correct 0 ms 208 KB Output is correct
8 Correct 0 ms 208 KB Output is correct
9 Correct 1 ms 208 KB Output is correct
10 Correct 0 ms 208 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 10 ms 684 KB Output is correct
17 Correct 10 ms 624 KB Output is correct
18 Correct 15 ms 604 KB Output is correct
19 Correct 9 ms 720 KB Output is correct
20 Correct 9 ms 680 KB Output is correct
21 Correct 34 ms 1832 KB Output is correct
22 Correct 34 ms 1828 KB Output is correct
23 Correct 41 ms 1864 KB Output is correct
24 Correct 37 ms 1832 KB Output is correct
25 Correct 30 ms 1812 KB Output is correct
26 Correct 35 ms 1872 KB Output is correct
27 Correct 38 ms 1864 KB Output is correct
28 Correct 36 ms 1820 KB Output is correct
29 Correct 43 ms 1820 KB Output is correct
30 Correct 30 ms 1868 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 208 KB Output is correct
2 Incorrect 0 ms 208 KB Output isn't correct
3 Incorrect 1 ms 208 KB Output isn't correct
4 Incorrect 0 ms 208 KB Output isn't correct
5 Incorrect 0 ms 208 KB Output isn't correct
6 Incorrect 0 ms 208 KB Output isn't correct
7 Incorrect 0 ms 208 KB Output isn't correct
8 Incorrect 0 ms 208 KB Output isn't correct
9 Incorrect 1 ms 208 KB Output isn't correct
10 Incorrect 0 ms 208 KB Output isn't correct
11 Incorrect 1 ms 336 KB Output isn't correct
12 Incorrect 1 ms 336 KB Output isn't correct
13 Incorrect 1 ms 220 KB Output isn't correct
14 Incorrect 1 ms 336 KB Output isn't correct
15 Incorrect 1 ms 336 KB Output isn't correct
16 Incorrect 5 ms 632 KB Output isn't correct
17 Incorrect 6 ms 700 KB Output isn't correct
18 Incorrect 5 ms 592 KB Output isn't correct
19 Incorrect 5 ms 720 KB Output isn't correct
20 Incorrect 3 ms 592 KB Output isn't correct
21 Incorrect 19 ms 1824 KB Output isn't correct
22 Incorrect 23 ms 1828 KB Output isn't correct
23 Incorrect 17 ms 1844 KB Output isn't correct
24 Incorrect 22 ms 1872 KB Output isn't correct
25 Incorrect 14 ms 1872 KB Output isn't correct
26 Incorrect 18 ms 1864 KB Output isn't correct
27 Incorrect 19 ms 1804 KB Output isn't correct
28 Incorrect 19 ms 1800 KB Output isn't correct
29 Incorrect 23 ms 1828 KB Output isn't correct
30 Incorrect 14 ms 1852 KB Output isn't correct
31 Incorrect 0 ms 208 KB Output isn't correct
32 Incorrect 1 ms 208 KB Output isn't correct