Submission #580605

# Submission time Handle Problem Language Result Execution time Memory
580605 2022-06-21T13:47:34 Z Sam_a17 Gap (APIO16_gap) C++14
30 / 100
43 ms 3656 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 + 1; i < mx; i += pos) {
      // i: i + pos;
      MinMax(i, i + pos - 1, &mn, &mx);
      assert(mn != -1);
      answ = max(answ, mn - l);
      l = mx;
    }

    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);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory 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 0 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 0 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 592 KB Output is correct
18 Correct 9 ms 688 KB Output is correct
19 Correct 9 ms 680 KB Output is correct
20 Correct 7 ms 592 KB Output is correct
21 Correct 36 ms 1836 KB Output is correct
22 Correct 36 ms 1824 KB Output is correct
23 Correct 37 ms 1836 KB Output is correct
24 Correct 43 ms 1828 KB Output is correct
25 Correct 37 ms 1824 KB Output is correct
26 Correct 38 ms 1824 KB Output is correct
27 Correct 40 ms 1824 KB Output is correct
28 Correct 37 ms 1864 KB Output is correct
29 Correct 40 ms 1776 KB Output is correct
30 Correct 31 ms 1840 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Incorrect 0 ms 208 KB Output isn't correct
3 Runtime error 1 ms 464 KB Execution killed with signal 6
4 Incorrect 0 ms 208 KB Output isn't correct
5 Correct 0 ms 208 KB Output is correct
6 Runtime error 1 ms 464 KB Execution killed with signal 6
7 Incorrect 0 ms 208 KB Output isn't correct
8 Runtime error 1 ms 464 KB Execution killed with signal 6
9 Incorrect 0 ms 208 KB Output isn't correct
10 Incorrect 0 ms 208 KB Output isn't correct
11 Incorrect 1 ms 316 KB Output isn't correct
12 Runtime error 1 ms 464 KB Execution killed with signal 6
13 Runtime error 1 ms 464 KB Execution killed with signal 6
14 Incorrect 1 ms 336 KB Output isn't correct
15 Correct 1 ms 336 KB Output is correct
16 Incorrect 6 ms 660 KB Output isn't correct
17 Incorrect 6 ms 592 KB Output isn't correct
18 Runtime error 6 ms 1232 KB Execution killed with signal 6
19 Incorrect 5 ms 628 KB Output isn't correct
20 Incorrect 4 ms 720 KB Output isn't correct
21 Incorrect 21 ms 1808 KB Output isn't correct
22 Runtime error 21 ms 3600 KB Execution killed with signal 6
23 Runtime error 24 ms 3656 KB Execution killed with signal 6
24 Incorrect 19 ms 1824 KB Output isn't correct
25 Correct 14 ms 1836 KB Output is correct
26 Runtime error 21 ms 3620 KB Execution killed with signal 6
27 Runtime error 26 ms 3620 KB Execution killed with signal 6
28 Runtime error 21 ms 3616 KB Execution killed with signal 6
29 Incorrect 20 ms 1828 KB Output isn't correct
30 Incorrect 12 ms 1872 KB Output isn't correct
31 Incorrect 0 ms 208 KB Output isn't correct
32 Runtime error 1 ms 464 KB Execution killed with signal 6