oj.uz

Submission #743845

# Submission time Handle Problem Language Result Execution time Memory
743845 2023-05-18T04:56:41 Z myrcella Shortcut (IOI16_shortcut) C++17
0 / 100
 1 ms 212 KB 
//by szh
#include<bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}

#include "shortcut.h"

const int maxn = 3e3+10;

ll pos[maxn];
ll a[maxn];
int n,C;
deque <int> q;
set <ll> p;

bool check(ll k) {
	ll A = 1e18, B = -1e18;
	ll mx1 = 1e18, mn1 = -1e18, mx2 = 1e18, mn2 = -1e18;
	q.clear();
	rep(j,0,n) {
		if (pos[j] + a[j] - A > k) {
			while (!q.empty() and pos[j] + a[j] - (pos[q.front()] - a[q.front()]) > k) {
				B = max(B,pos[q.front()] + a[q.front()]);
				q.pop_front();
			}
			mx1 = min(mx1,k + pos[j] - a[j] + A - C);
			mn1 = max(mn1,pos[j] + a[j] + B - k + C);
			mx2 = min(mx2,k + pos[j] - a[j] - B - C);
			mn2 = max(mn2,pos[j] + a[j] - A - k + C);
		}
		if (mn1 > mx1) return false;
		if (mn2 > mx2) return false;
		while (!q.empty() and pos[q.back()] - a[q.back()] >= pos[j] - a[j]) q.pop_back();
		A = min(A,pos[j] - a[j]);
		q.pb(j);
	}
	ll mx11 = mx1-mn2, mx22 = mx1+mx2, mn11 = mn1-mx2, mn22 = mn1+mn2;
	auto it = p.lower_bound(mn11);
	if (it==p.end()) return false;
	ll x = (*it);
	if (x>mx11) return false;
	it = p.upper_bound(mx22);
	if (it==p.begin()) return false;
	it--; ll y = (*it);
	if (y<mn22) return false;
	return x < y;
}

long long find_shortcut(int N, std::vector<int> L, std::vector<int> d, int c)
{
	p.clear();
	n = N; C=c;
	pos[0] = 0;
	p.insert(0);
	rep(i,1,n) pos[i] = pos[i-1] + L[i-1],p.insert(pos[i]*2ll);
	rep(i,0,n) a[i] = d[i];
	ll l = 0,r = 1e16;
	while (l<r) {
		ll mid = (l+r)/2;
		if (check(mid)) r = mid;
		else l = mid+1;
	}
//	debug(check(62));
    return l;
}

Subtask #1
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB n = 4, 80 is a correct answer
2 Correct 1 ms 212 KB n = 9, 110 is a correct answer
3 Correct 0 ms 212 KB n = 4, 21 is a correct answer
4 Correct 0 ms 212 KB n = 3, 4 is a correct answer
5 Correct 1 ms 212 KB n = 2, 62 is a correct answer
6 Correct 1 ms 212 KB n = 2, 3 is a correct answer
7 Correct 0 ms 212 KB n = 3, 29 is a correct answer
8 Correct 1 ms 212 KB n = 2, 3 is a correct answer
9 Correct 0 ms 212 KB n = 2, 3 is a correct answer
10 Correct 1 ms 212 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 212 KB n = 2, 3000000000 is a correct answer
12 Correct 0 ms 212 KB n = 3, 3000000000 is a correct answer
13 Correct 1 ms 212 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 212 KB n = 4, 3000000001 is a correct answer
15 Correct 1 ms 212 KB n = 4, 4000000000 is a correct answer
16 Correct 0 ms 212 KB n = 5, 4000000000 is a correct answer
17 Correct 0 ms 212 KB n = 10, 1000000343 is a correct answer
18 Incorrect 0 ms 212 KB n = 10, incorrect answer: jury 3189 vs contestant 3115
19 Halted 0 ms 0 KB -