Submission #38770

# Submission time Handle Problem Language Result Execution time Memory
38770 2018-01-06T12:57:54 Z Waschbar Gap (APIO16_gap) C++14
47.6762 / 100
173 ms 11348 KB
#include <bits/stdc++.h>
#include "gap.h"
using namespace std;

const long long INF = 1e18;

long long findGap(int T, int N) {

	multiset < pair< long long,pair<long long,long long> > > st;
	long long mn, mx;
	MinMax(0ll,INF,&mn,&mx);
	st.insert({-(mx-mn),{mn,mx}});
	long long ans = 0;

    if(N == 2){
        return mx - mn;
    }
	
	if (T == 1){
		for (int i=1;i<(N+1)/2;i++){
			long long mmn, mmx;
			MinMax(mn+1,mx-1,&mmn,&mmx);
			ans = max(ans,mmn-mn);
			ans = max(ans,mx-mmx);
			mn = mmn;
			mx = mmx;
		}
		ans = max(ans,mx-mn);
		return ans;
	}
	
    long long mnds = (mx-mn)/(N-1);

	int kk = 0;
	if(mn != -1) kk++;
	if(mn != mx) kk++;

	while(!st.empty()) {
		long long L, R;
		if(abs(st.begin()->first) <= ans)
			return ans;

		L = st.begin()->second.first;
		R = st.begin()->second.second;
		st.erase(st.begin());
		long long a1, a2, a3, a4;
		a1 = a1 = a3 = a4 = -1;
          if(L != (L+R)/2 && ((L+R)/2-L) >= mnds) {
			MinMax(L,(L+R)/2,&a1,&a2);
            if(a1 != -1) kk++;
            if(a2 != a1) kk++;
          }
          if(R != (L+R)/2+1 && (R-(L+R)/2+1) >= mnds) {
			MinMax((L+R)/2+1,R,&a3,&a4);
			if(a3 != -1) kk++;
            if(a4 != a1) kk++;
          }

			if(a1 == a2 && a1 != -1)
				ans = max(ans,a2-L);
			if(a2-a1 == 1 && a1 != -1)
				ans = max(ans,1ll);
			if(a1-L == 1 && a1 != -1)
				ans = max(ans,1ll);

			if(a3 == a4 && a4 != -1)
				ans = max(ans,R-a3);
			if(a4-a3 == 1 && a3 != -1)
				ans = max(ans,1ll);
			if(R-a4 == 1 && a4 != -1)
				ans = max(ans,1ll);

			if(a2 != -1 && a3 != -1)
				ans = max(ans,a3-a2);
			if(a3 == -1 && a1 == -1)
				ans = max(ans,R-L);
			if(a1 == -1 && a3 != -1)
				ans = max(ans,a3-L);
			if(a3 == -1 && a2 != -1)
				ans = max(ans,R-a2);

			if(a1 != -1 && a1-L > 1)
				st.insert({L-a1,{L,a1}});
			if(a1 != -1 && a2-a1 > 1)
				st.insert({a1-a2,{a1,a2}});
			if(a1 != -1 &&  a3 != -1 && a3-a2 > 1)
				st.insert({a2-a3,{a2,a3}});
			if(a3 != -1 && a4-a3 > 1)
				st.insert({a3-a4,{a3,a4}});
			if(a3 != -1 && R-a4 > 1)
				st.insert({a4-R,{a4,R}});
	}

	return ans;

	return 0;
}

Compilation message

gap.cpp: In function 'long long int findGap(int, int)':
gap.cpp:47:25: warning: operation on 'a1' may be undefined [-Wsequence-point]
   a1 = a1 = a3 = a4 = -1;
                         ^
# Verdict Execution time Memory Grader output
1 Correct 0 ms 5144 KB Output is correct
2 Correct 0 ms 5144 KB Output is correct
3 Correct 0 ms 5144 KB Output is correct
4 Correct 0 ms 5144 KB Output is correct
5 Correct 0 ms 5144 KB Output is correct
6 Correct 0 ms 5144 KB Output is correct
7 Correct 0 ms 5144 KB Output is correct
8 Correct 0 ms 5144 KB Output is correct
9 Correct 0 ms 5144 KB Output is correct
10 Correct 0 ms 5144 KB Output is correct
11 Correct 0 ms 5144 KB Output is correct
12 Correct 0 ms 5144 KB Output is correct
13 Correct 0 ms 5144 KB Output is correct
14 Correct 0 ms 5144 KB Output is correct
15 Correct 0 ms 5144 KB Output is correct
16 Correct 13 ms 5144 KB Output is correct
17 Correct 9 ms 5144 KB Output is correct
18 Correct 13 ms 5144 KB Output is correct
19 Correct 19 ms 5144 KB Output is correct
20 Correct 9 ms 5144 KB Output is correct
21 Correct 56 ms 5144 KB Output is correct
22 Correct 56 ms 5144 KB Output is correct
23 Correct 66 ms 5144 KB Output is correct
24 Correct 59 ms 5144 KB Output is correct
25 Correct 53 ms 5144 KB Output is correct
26 Correct 59 ms 5144 KB Output is correct
27 Correct 63 ms 5144 KB Output is correct
28 Correct 49 ms 5144 KB Output is correct
29 Correct 79 ms 5144 KB Output is correct
30 Correct 36 ms 5144 KB Output is correct
31 Correct 0 ms 5144 KB Output is correct
32 Correct 0 ms 5144 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 0 ms 5144 KB Output is correct
2 Partially correct 0 ms 5144 KB Partially correct
3 Partially correct 0 ms 5144 KB Partially correct
4 Correct 0 ms 5144 KB Output is correct
5 Partially correct 0 ms 5144 KB Partially correct
6 Partially correct 0 ms 5144 KB Partially correct
7 Partially correct 0 ms 5144 KB Partially correct
8 Partially correct 0 ms 5144 KB Partially correct
9 Partially correct 0 ms 5144 KB Partially correct
10 Partially correct 0 ms 5144 KB Partially correct
11 Partially correct 0 ms 5144 KB Partially correct
12 Partially correct 0 ms 5144 KB Partially correct
13 Partially correct 0 ms 5144 KB Partially correct
14 Partially correct 0 ms 5144 KB Partially correct
15 Partially correct 0 ms 5276 KB Partially correct
16 Partially correct 16 ms 5540 KB Partially correct
17 Partially correct 13 ms 5540 KB Partially correct
18 Partially correct 13 ms 5408 KB Partially correct
19 Partially correct 16 ms 5408 KB Partially correct
20 Partially correct 3 ms 5144 KB Partially correct
21 Partially correct 56 ms 6200 KB Partially correct
22 Partially correct 59 ms 6200 KB Partially correct
23 Partially correct 56 ms 6200 KB Partially correct
24 Partially correct 56 ms 6200 KB Partially correct
25 Partially correct 173 ms 11348 KB Partially correct
26 Partially correct 63 ms 6200 KB Partially correct
27 Partially correct 69 ms 6200 KB Partially correct
28 Partially correct 66 ms 6464 KB Partially correct
29 Partially correct 63 ms 6200 KB Partially correct
30 Partially correct 19 ms 5144 KB Partially correct
31 Correct 0 ms 5144 KB Output is correct
32 Correct 0 ms 5144 KB Output is correct