Submission #1159747

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159747		Der_Vlapos	Bubble Sort 2 (JOI18_bubblesort2)	C++20	Compilation error	0 ms	0 KiB

bubblesort2

#include "bubblesort2.h"
#include <bits/stdc++.h>

using namespace std;

std::vector<int> countScans(std::vector<int> a, std::vector<int> x, std::vector<int> v)
{
	int n = a.size();
	int q = x.size();
	std::vector<int> answer(q);
	for (int j = 0; j < q; j++)
	{
		a[x[j]] = v[j];

		int mn = 1e9 + 10;
		int cnt = 0;
		for (int i = n - 1; i >= 0; --i)
		{
			cnt += (a[i] > mn);
			mn = min(mn, a[i]);
		}
		answer[j] = cnt;

		{
			auto bf = a;
			int cnt = 0;
			bool good = true;
			int cur = 0;
			while (good)
			{
				good = false;

				for (int i = 0; i + 1 < n; ++i)
					if (bf[i + 1] < bf[i])
						good = true, swap(bf[i], bf[i + 1]);

				cur += good;
			}
			// assert(cur == cnt);
			answer[j] = cur;
		}
	}
	return answer;
}

#include "bubblesort2.h"

#include <cstdio>
#include <cstdlib>
#include <vector>

int readInt()
{
	int i;
	if (scanf("%d", &i) != 1)
	{
		fprintf(stderr, "Error while reading input\n");
		exit(1);
	}
	return i;
}

int main()
{
	int N, Q;
	N = readInt();
	Q = readInt();

	std::vector<int> A(N);
	for (int i = 0; i < N; i++)
		A[i] = readInt();

	std::vector<int> X(Q), V(Q);
	for (int j = 0; j < Q; j++)
	{
		X[j] = readInt();
		V[j] = readInt();
	}

	std::vector<int> res = countScans(A, X, V);

	for (int j = 0; j < int(res.size()); j++)
		printf("%d\n", res[j]);
}

Compilation message (stderr)

/usr/bin/ld: /tmp/ccdIruzM.o: in function `readInt()':
grader.cpp:(.text+0x0): multiple definition of `readInt()'; /tmp/ccidwQgi.o:bubblesort2.cpp:(.text+0x0): first defined here
/usr/bin/ld: /tmp/ccdIruzM.o: in function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/ccidwQgi.o:bubblesort2.cpp:(.text.startup+0x0): first defined here
collect2: error: ld returned 1 exit status