Submission #679169

#	Time	Username	Problem	Language	Result	Execution time	Memory
679169		tigar	Gap (APIO16_gap)	C++14	0 / 100	45 ms	1100 KiB

gap

#include <bits/stdc++.h>
#include "gap.h"

using namespace std;

typedef long long ll;

ll mn, mx;
/*int T, N;
ll call_count, subtask_num, A[100000];
static void my_assert(int k){ if (!k) exit(1); }
void MinMax(long long s, long long t, long long *mn, long long *mx)
{
	int lo = 1, hi = N, left = N+1, right = 0;
	my_assert(s <= t && mn != NULL && mx != NULL);
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] >= s) hi = mid - 1, left = mid;
		else lo = mid + 1;
	}
	lo = 1, hi = N;
	while (lo <= hi){
		int mid = (lo+hi)>>1;
		if (A[mid] <= t) lo = mid + 1, right = mid;
		else hi = mid - 1;
	}
	if (left > right) *mn = *mx = -1;
	else{
		*mn = A[left];
		*mx = A[right];
	}
	if (subtask_num == 1) call_count++;
	else if (subtask_num == 2) call_count += right-left+2;
}*/


ll findGap(int T, int N)
{
    if(T==1)
    {
        ll up_bound=LONG_LONG_MAX, low_bound=0;
        MinMax(low_bound, up_bound, &mn, &mx);
        ll a=mn, b=mx;
        low_bound=mn+1; up_bound=mx-1;
        ll razlika=0;
        while(mn!=-1 and up_bound>=low_bound)
        {
            MinMax(low_bound, up_bound, &mn, &mx);
            if(mn!=-1 and mx!=-1)
            {
                razlika=max(razlika, max(abs(mn-a), abs(b-mx)));
                low_bound=mn+1; up_bound=mx-1;
                a=mn; b=mx;
            }
        }
        return razlika;
    }
}

/*int main()
{
    cin>>T>>N;
    for(int i=1; i<=N; i++)cin>>A[i];
    cout<<findGap(T, N);
}
/*1 2
1 3
4!!!!*/

Compilation message (stderr)

gap.cpp:66:1: warning: "/*" within comment [-Wcomment]
   66 | /*1 2
      |  
gap.cpp: In function 'll findGap(int, int)':
gap.cpp:58:1: warning: control reaches end of non-void function [-Wreturn-type]
   58 | }
      | ^

• Subtask 1: 0 / 30
• Subtask 2: 0 / 70