oj.uz

Submission #916060

# Submission time Handle Problem Language Result Execution time Memory
916060 2024-01-25T08:19:40 Z GrindMachine Gap (APIO16_gap) C++17
5.78045 / 100
 1050 ms 3140 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 = 255;

#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 0 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 9 ms 2392 KB Output isn't correct
12 Incorrect 7 ms 2392 KB Output isn't correct
13 Incorrect 8 ms 2392 KB Output isn't correct
14 Incorrect 7 ms 2392 KB Output isn't correct
15 Incorrect 1 ms 2392 KB Output isn't correct
16 Incorrect 124 ms 2752 KB Output isn't correct
17 Incorrect 127 ms 2832 KB Output isn't correct
18 Incorrect 127 ms 2588 KB Output isn't correct
19 Incorrect 121 ms 2588 KB Output isn't correct
20 Incorrect 10 ms 2572 KB Output isn't correct
21 Incorrect 1016 ms 2884 KB Output isn't correct
22 Incorrect 1010 ms 3132 KB Output isn't correct
23 Incorrect 1016 ms 2888 KB Output isn't correct
24 Incorrect 1029 ms 2884 KB Output isn't correct
25 Incorrect 59 ms 2852 KB Output isn't correct
26 Incorrect 1050 ms 2880 KB Output isn't correct
27 Incorrect 1020 ms 3140 KB Output isn't correct
28 Incorrect 1022 ms 2848 KB Output isn't correct
29 Incorrect 1044 ms 2876 KB Output isn't correct
30 Incorrect 44 ms 2888 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
5.7804544794 / 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 2 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 7 ms 2392 KB Partially correct
12 Partially correct 7 ms 2392 KB Partially correct
13 Partially correct 7 ms 2392 KB Partially correct
14 Partially correct 7 ms 2392 KB Partially correct
15 Partially correct 2 ms 2392 KB Partially correct
16 Partially correct 138 ms 2592 KB Partially correct
17 Partially correct 125 ms 2604 KB Partially correct
18 Partially correct 124 ms 2620 KB Partially correct
19 Partially correct 126 ms 2584 KB Partially correct
20 Partially correct 11 ms 2572 KB Partially correct
21 Partially correct 1026 ms 3108 KB Partially correct
22 Partially correct 1020 ms 3140 KB Partially correct
23 Partially correct 1020 ms 2884 KB Partially correct
24 Partially correct 1022 ms 3012 KB Partially correct
25 Partially correct 56 ms 3108 KB Partially correct
26 Partially correct 1027 ms 3084 KB Partially correct
27 Partially correct 1022 ms 3132 KB Partially correct
28 Partially correct 1048 ms 2880 KB Partially correct
29 Partially correct 1018 ms 3092 KB Partially correct
30 Partially correct 41 ms 3116 KB Partially correct
31 Partially correct 1 ms 2392 KB Partially correct
32 Partially correct 1 ms 2392 KB Partially correct