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Submission #978521

# Submission time Handle Problem Language Result Execution time Memory
978521 2024-05-09T09:33:59 Z IUA_Hasin Gap (APIO16_gap) C++17
100 / 100
 48 ms 3632 KB 
#include "gap.h"

#include <bits/stdc++.h>

#define ll						long long

using namespace std;

long long findGap(int T, int N)
{
	if(T==1){
		ll tempa = 0;
		ll tempb = 1e18;
		ll arr[N];
		ll l = 0;
		ll r = N-1;

		// cout<<tempa<< " " << tempb<<endl;

		while(true){
			if(l<=r){
				ll mn, mx;
				MinMax(tempa, tempb, &mn, &mx);
				// cout<<mn<<" "<<mx<<endl;
				mn = (ll)mn;
				mx = (ll)mx;
				if(mn==-1 || mx==-1){
					break;
				} else if(mn==mx){
					arr[l] = mn;
					break;
				} else {
					tempa = (ll)(mn+1);
					tempb = (ll)(mx-1);
					arr[l] = (ll)mn;
					arr[r] = (ll)mx;
					l++;
					r--;
				}
			} else {
				break;
			}
		}

		ll ans = 0;

		// for(int i=0; i<N; i++){
		// 	cout << arr[i] << " ";
		// }
		// cout<<endl;

		for(int i=1; i<N; i++){
			ll temp = (ll)(arr[i]-arr[i-1]);
			ans = (ll)(max(temp, ans));
		}

		ans = (ll)(ans);
		
		return ans;
	} else if(T==2){
		ll mn, mx;
		ll a = 0;
		ll b = 1e18;
		MinMax(a, b, &mn, &mx);
		// cout << a << " " << b << endl;

		ll c = mx-mn;
		ll step;
		if(c%(N-1)==0){
			step = c/(N-1);
		} else {
			step = floor(c/(N-1))+1;
		}

		// cout << step << "    " << 75 << endl;
		
		ll ans = step;
		ll left = mn;
		ll l = mn;
		ll r = mx;
		ll x, y;
		while(true){
			ll templ = l;
			ll tempr = l+step;
			if(tempr<mx){
				MinMax(templ, tempr, &x, &y);
				// cout << templ << " " << tempr << endl;
				if(x!=-1){
					ans = max(ans, x-left);
					left = y;
				}
			} else {
				break;
			}
			l = tempr+1;
		}

		ll templ = l;
		ll tempr = mx;
		if(templ!=tempr){
			MinMax(templ, tempr, &x, &y);
			// cout << templ << " " << tempr << "    " << 100 << endl;
			if(x!=-1){
				ans = max(ans, x-left);
			}
		}
		return ans;

	}

}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:80:6: warning: unused variable 'r' [-Wunused-variable]
   80 |   ll r = mx;
      |      ^
gap.cpp:111:1: warning: control reaches end of non-void function [-Wreturn-type]
  111 | }
      | ^

Subtask #1
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2392 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 1 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 1 ms 2392 KB Output is correct
16 Correct 8 ms 2584 KB Output is correct
17 Correct 8 ms 2724 KB Output is correct
18 Correct 8 ms 2588 KB Output is correct
19 Correct 8 ms 2752 KB Output is correct
20 Correct 6 ms 2576 KB Output is correct
21 Correct 30 ms 3556 KB Output is correct
22 Correct 29 ms 3624 KB Output is correct
23 Correct 30 ms 3624 KB Output is correct
24 Correct 30 ms 3628 KB Output is correct
25 Correct 34 ms 3628 KB Output is correct
26 Correct 30 ms 3620 KB Output is correct
27 Correct 30 ms 3632 KB Output is correct
28 Correct 30 ms 3624 KB Output is correct
29 Correct 29 ms 3624 KB Output is correct
30 Correct 25 ms 3624 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 0 ms 2392 KB Output is correct

Subtask #2
70.0 / 70.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2392 KB Output is correct
2 Correct 1 ms 2392 KB Output is correct
3 Correct 0 ms 2392 KB Output is correct
4 Correct 1 ms 2392 KB Output is correct
5 Correct 0 ms 2392 KB Output is correct
6 Correct 1 ms 2392 KB Output is correct
7 Correct 0 ms 2392 KB Output is correct
8 Correct 1 ms 2392 KB Output is correct
9 Correct 0 ms 2392 KB Output is correct
10 Correct 0 ms 2392 KB Output is correct
11 Correct 1 ms 2392 KB Output is correct
12 Correct 1 ms 2392 KB Output is correct
13 Correct 2 ms 2392 KB Output is correct
14 Correct 1 ms 2392 KB Output is correct
15 Correct 2 ms 2392 KB Output is correct
16 Correct 10 ms 2596 KB Output is correct
17 Correct 11 ms 2568 KB Output is correct
18 Correct 10 ms 2756 KB Output is correct
19 Correct 10 ms 2584 KB Output is correct
20 Correct 6 ms 2568 KB Output is correct
21 Correct 42 ms 2752 KB Output is correct
22 Correct 42 ms 2856 KB Output is correct
23 Correct 48 ms 2856 KB Output is correct
24 Correct 42 ms 2856 KB Output is correct
25 Correct 42 ms 2864 KB Output is correct
26 Correct 42 ms 2860 KB Output is correct
27 Correct 41 ms 2856 KB Output is correct
28 Correct 43 ms 2856 KB Output is correct
29 Correct 42 ms 2860 KB Output is correct
30 Correct 23 ms 2848 KB Output is correct
31 Correct 1 ms 2392 KB Output is correct
32 Correct 1 ms 2392 KB Output is correct