oj.uz

Submission #916059

# Submission time Handle Problem Language Result Execution time Memory
916059 2024-01-25T08:18:58 Z GrindMachine Gap (APIO16_gap) C++17
8.6542 / 100
 404 ms 3176 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace std;
using namespace __gnu_pbds;

template<typename T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long int ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;

#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL)
#define pb push_back
#define endl '\n'
#define sz(a) (int)a.size()
#define setbits(x) __builtin_popcountll(x)
#define ff first
#define ss second
#define conts continue
#define ceil2(x,y) ((x+y-1)/(y))
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define yes cout << "Yes" << endl
#define no cout << "No" << endl

#define rep(i,n) for(int i = 0; i < n; ++i)
#define rep1(i,n) for(int i = 1; i <= n; ++i)
#define rev(i,s,e) for(int i = s; i >= e; --i)
#define trav(i,a) for(auto &i : a)

template<typename T>
void amin(T &a, T b) {
    a = min(a,b);
}

template<typename T>
void amax(T &a, T b) {
    a = max(a,b);
}

#ifdef LOCAL
#include "debug.h"
#else
#define debug(x) 42
#endif

/*

read some solutions a long time ago, slightly remember some ideas
may have still solved it if not for those ideas

*/

const int MOD = 1e9 + 7;
const int N = 1e5 + 5;
const int inf1 = int(1e9) + 5;
const ll inf2 = ll(1e18) + 5;
const int B = 75;

#include "gap.h"

ll go(ll l, ll r){
	if(l >= r) return 0;

	// split into B segs
	ll len = r-l+1;
	ll cnt1 = B;
	ll cnt2 = len%B;
	cnt1 -= cnt2;

	vector<pll> segs;
	ll ptr = l;

	rep1(i,cnt1){
		if(len >= B){
			segs.pb({ptr,ptr+len/B-1});
		}
		ptr += len/B;
	}

	rep1(i,cnt2){
		segs.pb({ptr,ptr+ceil2(len,B)-1});
		ptr += ceil2(len,B);
	}

	// cout << "l = " << l << endl;
	// cout << "r = " << r << endl;
	// for(auto [lx,rx] : segs){
	// 	cout << lx << " " << rx << endl;
	// }

	assert(ptr == r+1);

	vector<pll> seg_vals;
	ll ans = 0;

	rep(i,sz(segs)){
		ll mn,mx;
		auto [lx,rx] = segs[i];
		MinMax(lx,rx,&mn,&mx);
		seg_vals.pb({mn,mx});
		if(mn != mx){
			amax(ans,go(lx,rx));
		}
	}

	ll last_active = -1;

	for(auto [mn,mx] : seg_vals){
		if(mn != -1){
			if(last_active != -1){
				amax(ans,mn-last_active);
			}
			last_active = mx;
		}
	}

	return ans;
}

long long findGap(int T, int n)
{
	return go(0,inf2);
}

Subtask #1
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Output isn't correct
2 Incorrect 1 ms 2392 KB Output isn't correct
3 Incorrect 1 ms 2392 KB Output isn't correct
4 Incorrect 1 ms 2392 KB Output isn't correct
5 Incorrect 1 ms 2392 KB Output isn't correct
6 Incorrect 1 ms 2392 KB Output isn't correct
7 Incorrect 1 ms 2392 KB Output isn't correct
8 Incorrect 1 ms 2392 KB Output isn't correct
9 Incorrect 1 ms 2392 KB Output isn't correct
10 Incorrect 1 ms 2392 KB Output isn't correct
11 Incorrect 4 ms 2392 KB Output isn't correct
12 Incorrect 3 ms 2392 KB Output isn't correct
13 Incorrect 3 ms 2392 KB Output isn't correct
14 Incorrect 3 ms 2392 KB Output isn't correct
15 Incorrect 5 ms 2392 KB Output isn't correct
16 Incorrect 64 ms 2828 KB Output isn't correct
17 Incorrect 66 ms 2840 KB Output isn't correct
18 Incorrect 66 ms 2592 KB Output isn't correct
19 Incorrect 63 ms 2596 KB Output isn't correct
20 Incorrect 10 ms 2572 KB Output isn't correct
21 Incorrect 209 ms 3124 KB Output isn't correct
22 Incorrect 200 ms 3176 KB Output isn't correct
23 Incorrect 202 ms 2872 KB Output isn't correct
24 Incorrect 198 ms 2872 KB Output isn't correct
25 Incorrect 403 ms 2872 KB Output isn't correct
26 Incorrect 242 ms 2860 KB Output isn't correct
27 Incorrect 200 ms 2884 KB Output isn't correct
28 Incorrect 206 ms 3120 KB Output isn't correct
29 Incorrect 199 ms 2864 KB Output isn't correct
30 Incorrect 43 ms 2848 KB Output isn't correct
31 Incorrect 1 ms 2392 KB Output isn't correct
32 Incorrect 1 ms 2392 KB Output isn't correct

Subtask #2
8.6541957962 / 70.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 2392 KB Partially correct
2 Partially correct 1 ms 2392 KB Partially correct
3 Partially correct 1 ms 2392 KB Partially correct
4 Partially correct 1 ms 2392 KB Partially correct
5 Partially correct 1 ms 2392 KB Partially correct
6 Partially correct 1 ms 2392 KB Partially correct
7 Partially correct 1 ms 2392 KB Partially correct
8 Partially correct 1 ms 2392 KB Partially correct
9 Partially correct 1 ms 2392 KB Partially correct
10 Partially correct 1 ms 2392 KB Partially correct
11 Partially correct 3 ms 2516 KB Partially correct
12 Partially correct 3 ms 2392 KB Partially correct
13 Partially correct 3 ms 2392 KB Partially correct
14 Partially correct 3 ms 2648 KB Partially correct
15 Partially correct 5 ms 2392 KB Partially correct
16 Partially correct 63 ms 2752 KB Partially correct
17 Partially correct 68 ms 2588 KB Partially correct
18 Partially correct 64 ms 2584 KB Partially correct
19 Partially correct 63 ms 2584 KB Partially correct
20 Partially correct 11 ms 2828 KB Partially correct
21 Partially correct 195 ms 2848 KB Partially correct
22 Partially correct 208 ms 2852 KB Partially correct
23 Partially correct 196 ms 2788 KB Partially correct
24 Partially correct 196 ms 2868 KB Partially correct
25 Partially correct 404 ms 2872 KB Partially correct
26 Partially correct 199 ms 2872 KB Partially correct
27 Partially correct 204 ms 2880 KB Partially correct
28 Partially correct 201 ms 2856 KB Partially correct
29 Partially correct 196 ms 2852 KB Partially correct
30 Partially correct 42 ms 3036 KB Partially correct
31 Partially correct 1 ms 2392 KB Partially correct
32 Partially correct 1 ms 2392 KB Partially correct