Submission #108943

# Submission time Handle Problem Language Result Execution time Memory
108943 2019-05-03T04:29:28 Z autumn_eel Gap (APIO16_gap) C++14
100 / 100
91 ms 3308 KB
#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
using namespace std;
typedef long long ll;

#include "gap.h"


ll solve1(int n){
	deque<ll>f,r;
	while(f.size()+r.size()<n){
		ll mn,mx;
		ll L=0,R=1e18;
		if(!f.empty())L=f.back()+1;
		if(!r.empty())R=r.front()-1;
		MinMax(L,R,&mn,&mx);
		f.push_back(mn);
		if(mn!=mx)r.push_front(mx);
	}
	while(!r.empty()){
		f.push_back(r.front());
		r.pop_front();
	}
	ll ans=0;
	rep(i,n-1)ans=max(ans,f[i+1]-f[i]);
	return ans;
}

ll solve2(int n){
	ll mn,mx;
	MinMax(0,1e18,&mn,&mx);
	ll x=((mx-mn)+n-1)/(n-1);
	vector<ll>v;
	ll cur=mn;
	while(cur<=mx){
		ll a,b;
		MinMax(cur,cur+x,&a,&b);
		if(a!=-1){
			v.push_back(a);
			v.push_back(b);
		}
		cur+=x+1;
	}
	ll ans=0;
	rep(i,v.size()-1){
		ans=max(ans,v[i+1]-v[i]);
	}
	return ans;
}

long long findGap(int T, int N){
	if(T==1)return solve1(N);
	return solve2(N);
}

Compilation message

gap.cpp: In function 'll solve1(int)':
gap.cpp:11:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(f.size()+r.size()<n){
        ~~~~~~~~~~~~~~~~~^~
gap.cpp: In function 'll solve2(int)':
gap.cpp:2:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define rep(i,n)for(int i=0;i<(n);i++)
                              ^
gap.cpp:45:2: note: in expansion of macro 'rep'
  rep(i,v.size()-1){
  ^~~
# Verdict Execution time Memory Grader output
1 Correct 3 ms 384 KB Output is correct
2 Correct 2 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 2 ms 384 KB Output is correct
6 Correct 2 ms 384 KB Output is correct
7 Correct 2 ms 384 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 2 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 3 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 512 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 3 ms 384 KB Output is correct
16 Correct 14 ms 768 KB Output is correct
17 Correct 13 ms 768 KB Output is correct
18 Correct 14 ms 768 KB Output is correct
19 Correct 14 ms 768 KB Output is correct
20 Correct 10 ms 768 KB Output is correct
21 Correct 51 ms 1912 KB Output is correct
22 Correct 52 ms 1884 KB Output is correct
23 Correct 47 ms 1904 KB Output is correct
24 Correct 47 ms 2040 KB Output is correct
25 Correct 42 ms 1912 KB Output is correct
26 Correct 47 ms 1912 KB Output is correct
27 Correct 51 ms 2040 KB Output is correct
28 Correct 55 ms 1912 KB Output is correct
29 Correct 69 ms 2040 KB Output is correct
30 Correct 37 ms 1912 KB Output is correct
31 Correct 3 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 384 KB Output is correct
2 Correct 3 ms 384 KB Output is correct
3 Correct 2 ms 384 KB Output is correct
4 Correct 2 ms 384 KB Output is correct
5 Correct 3 ms 384 KB Output is correct
6 Correct 3 ms 384 KB Output is correct
7 Correct 2 ms 304 KB Output is correct
8 Correct 2 ms 384 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 384 KB Output is correct
11 Correct 2 ms 384 KB Output is correct
12 Correct 3 ms 384 KB Output is correct
13 Correct 3 ms 384 KB Output is correct
14 Correct 3 ms 384 KB Output is correct
15 Correct 4 ms 384 KB Output is correct
16 Correct 16 ms 896 KB Output is correct
17 Correct 16 ms 896 KB Output is correct
18 Correct 17 ms 1024 KB Output is correct
19 Correct 18 ms 896 KB Output is correct
20 Correct 14 ms 640 KB Output is correct
21 Correct 62 ms 2288 KB Output is correct
22 Correct 91 ms 2304 KB Output is correct
23 Correct 61 ms 2236 KB Output is correct
24 Correct 69 ms 2416 KB Output is correct
25 Correct 61 ms 3308 KB Output is correct
26 Correct 63 ms 2268 KB Output is correct
27 Correct 63 ms 2288 KB Output is correct
28 Correct 86 ms 2288 KB Output is correct
29 Correct 62 ms 2288 KB Output is correct
30 Correct 42 ms 1532 KB Output is correct
31 Correct 2 ms 384 KB Output is correct
32 Correct 2 ms 384 KB Output is correct