Submission #440788

#	Time	Username	Problem	Language	Result	Execution time	Memory
440788		hibye1217	Gap (APIO16_gap)	C++17	Compilation error	0 ms	0 KiB

gap

// gap.h //

void MinMax(long long, long long, long long*, long long*);

// grader.cpp //

#include <stdio.h>
#include <stdlib.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;

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;
}

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);
}

#define NOTSUBMIT
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

/// gap.cpp ///

#ifndef NOTSUBMIT
#include "gap.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#endif

// Subtask 1 Only

ll arr[100020];

ll findGap(int T, int N){
	if (T == 1){
		ll mn = 0, mx = 1e18;
		int st = 1, ed = N;
		while (st <= ed){
			MinMax(mn, mx, &arr[st], &arr[ed]);
			mn = arr[st]+1; mx = arr[ed]-1;
			st += 1; ed -= 1;
		}
		ll ans = 0;
		for (int i = 1; i < N; i++){
			ans = max(ans, arr[i+1] - arr[i]);
		}
		return ans;
	}
}

Compilation message (stderr)

gap.cpp: In function 'll findGap(int, int)':
gap.cpp:89:1: warning: control reaches end of non-void function [-Wreturn-type]
   89 | }
      | ^
/usr/bin/ld: /tmp/ccX222cH.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/ccCK7exG.o:gap.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccX222cH.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccCK7exG.o:gap.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status