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Submission #554367

# Submission time Handle Problem Language Result Execution time Memory
554367 2022-04-28T09:18:32 Z Keshi Gap (APIO16_gap) C++17
100 / 100
 53 ms 1864 KB 
//In the name of God
#include <bits/stdc++.h>
using namespace std;
#include "gap.h"


typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const ll maxn = 2e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e18 + 1000;

#define fast_io ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define file_io freopen("input.txt", "r+", stdin);freopen("output.txt", "w+", stdout);
#define pb push_back
#define Mp make_pair
#define F first
#define S second
#define Sz(x) ll((x).size())
#define all(x) (x).begin(), (x).end()

ll pw(ll a, ll b){
	ll c = 1;
	while(b){
		if(b & 1) c = c * a % mod;
		a = a * a % mod;
		b >>= 1;
	}
	return c;
}

ll mn, mx, L, R, ans;
ll a[maxn];

ll solve(int n){
	L = 0;
	R = inf;
	for(int i = 0; i < (n + 1) / 2; i++){
		MinMax(L, R, &mn, &mx);
		a[i] = mn;
		a[n - i  - 1] = mx;
		L = mn + 1;
		R = mx - 1;
	}
	for(int i = 1; i < n; i++){
		ans = max(ans, a[i] - a[i - 1]);
	}
	return ans;
}

long long findGap(int T, int N){
	if(T == 1){
		return solve(N);
	}
	
	L = 0;
	R = inf;

	MinMax(L, R, &mn, &mx);
	L = mn;
	R = mx;
	ans = (R - L + N - 2) / (N - 1);
	while(L < R){
		MinMax(L + 1, L + ans, &mn, &mx);
		if(mx != -1){
			L = mx;
			continue;
		}
		MinMax(L + 1, L + (ans + 1) * 2, &mn, &mx);
		while(mn == -1){
			ans = (ans + 1) * 2 + 1;
			MinMax(L + 1, L + (ans + 1) * 2, &mn, &mx);
		}
		ans = mn - L;
		L = mx;
	}

	return ans;
}

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 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 0 ms 208 KB Output is correct
10 Correct 1 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 692 KB Output is correct
18 Correct 11 ms 636 KB Output is correct
19 Correct 9 ms 592 KB Output is correct
20 Correct 7 ms 736 KB Output is correct
21 Correct 53 ms 1864 KB Output is correct
22 Correct 36 ms 1828 KB Output is correct
23 Correct 34 ms 1864 KB Output is correct
24 Correct 38 ms 1780 KB Output is correct
25 Correct 31 ms 1852 KB Output is correct
26 Correct 37 ms 1812 KB Output is correct
27 Correct 37 ms 1816 KB Output is correct
28 Correct 36 ms 1864 KB Output is correct
29 Correct 45 ms 1748 KB Output is correct
30 Correct 31 ms 1836 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 0 ms 208 KB Output is correct
5 Correct 1 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 208 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 208 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 7 ms 464 KB Output is correct
17 Correct 6 ms 424 KB Output is correct
18 Correct 7 ms 464 KB Output is correct
19 Correct 7 ms 424 KB Output is correct
20 Correct 3 ms 464 KB Output is correct
21 Correct 35 ms 968 KB Output is correct
22 Correct 24 ms 972 KB Output is correct
23 Correct 26 ms 1060 KB Output is correct
24 Correct 29 ms 1056 KB Output is correct
25 Correct 47 ms 1096 KB Output is correct
26 Correct 25 ms 1092 KB Output is correct
27 Correct 23 ms 968 KB Output is correct
28 Correct 23 ms 1088 KB Output is correct
29 Correct 23 ms 1092 KB Output is correct
30 Correct 14 ms 1068 KB Output is correct
31 Correct 1 ms 208 KB Output is correct
32 Correct 0 ms 208 KB Output is correct