oj.uz

Submission #580610

# Submission time Handle Problem Language Result Execution time Memory
580610 2022-06-21T13:58:39 Z Sam_a17 Gap (APIO16_gap) C++14
100 / 100
 60 ms 1900 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 {
    long long mn, mx;
    MinMax(0, inf, &mn, &mx);
    long long pos = (mx - mn + N - 2) / (N - 1), ans = pos;
    long long x, y, i, l = mn;
    for (i = mn; i < mx; i += pos + 1) {
      MinMax(i, i + pos, &x, &y);
      if (x != -1) {
        ans = max(ans, x-l);
        l = y;
      }
    }
    
    return ans;
  }

  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);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
30.0 / 30.0

# 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 11 ms 720 KB Output is correct
17 Correct 10 ms 688 KB Output is correct
18 Correct 10 ms 628 KB Output is correct
19 Correct 10 ms 684 KB Output is correct
20 Correct 9 ms 592 KB Output is correct
21 Correct 38 ms 1824 KB Output is correct
22 Correct 37 ms 1752 KB Output is correct
23 Correct 38 ms 1828 KB Output is correct
24 Correct 37 ms 1828 KB Output is correct
25 Correct 32 ms 1900 KB Output is correct
26 Correct 36 ms 1828 KB Output is correct
27 Correct 39 ms 1764 KB Output is correct
28 Correct 40 ms 1808 KB Output is correct
29 Correct 36 ms 1864 KB Output is correct
30 Correct 29 ms 1824 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct

Subtask #2
70.0 / 70.0

# 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 1 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 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 208 KB Output is correct
13 Correct 1 ms 208 KB Output is correct
14 Correct 1 ms 380 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 12 ms 428 KB Output is correct
17 Correct 13 ms 476 KB Output is correct
18 Correct 12 ms 508 KB Output is correct
19 Correct 12 ms 464 KB Output is correct
20 Correct 6 ms 464 KB Output is correct
21 Correct 54 ms 1184 KB Output is correct
22 Correct 54 ms 1060 KB Output is correct
23 Correct 60 ms 1052 KB Output is correct
24 Correct 50 ms 968 KB Output is correct
25 Correct 47 ms 1100 KB Output is correct
26 Correct 55 ms 1092 KB Output is correct
27 Correct 52 ms 1060 KB Output is correct
28 Correct 54 ms 1168 KB Output is correct
29 Correct 58 ms 1056 KB Output is correct
30 Correct 27 ms 1104 KB Output is correct
31 Correct 0 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct