Submission #23018

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
23018	2017-05-01T20:32:44 Z	arman_ferdous	Gap (APIO16_gap)	C++14	Compilation error	0 ms	0 KB

gap

#include <bits/stdc++.h>

#include "gap.h"

static void my_assert(int k){ if (!k) exit(1); }

static int subtask_num, N;
static long long A[100001];
static long long call_count;
const long long MAXN = 1e18;
long long findGap(int, int);

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;
}

long long findGap(int T, int N)
{
    long long aray[N], i = 0, j = N-1, lo = 0, hi = MAXN;
    while(j-i >= 1)
    {
        long long x, y;
        MinMax(lo,hi,&x,&y);
        aray[i] = x, aray[j] = y;
        i++, j--;
    }

    long long res = -1;
    for(int i = 0; i+1 < N; i++)
        res = (res < aray[i+1]-aray[i] ? aray[i+1]-aray[i] : res);
    return res;
}

int main()
{
	FILE *in = stdin, *out = stdout;
	my_assert(2 == fscanf(in, "%d%d", &subtask_num, &N));
	my_assert(1 <= subtask_num && subtask_num <= 2);
	my_assert(2 <= N && N <= 100000);
	for (int i=1;i<=N;i++) my_assert(1 == fscanf(in, "%lld", A+i));
	for (int i=1;i<N;i++) my_assert(A[i] < A[i+1]);
	fprintf(out, "%lld\n", findGap(subtask_num, N));
	fprintf(out, "%lld\n", call_count);
}

Compilation message

/tmp/ccTuuTbu.o: In function `MinMax(long long, long long, long long*, long long*)':
grader.cpp:(.text+0x0): multiple definition of `MinMax(long long, long long, long long*, long long*)'
/tmp/cck9A4up.o:gap.cpp:(.text+0x0): first defined here
/tmp/ccTuuTbu.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/cck9A4up.o:gap.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status