Submission #852920

#	Time	Username	Problem	Language	Result	Execution time	Memory
852920		MuntherCarrot	Bubble Sort 2 (JOI18_bubblesort2)	C++17	Compilation error	0 ms	0 KiB

bubblesort2

// by me
#include "bubblesort2.h"

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define endl '\n'
#define all(x) x.begin(), x.end()

std::vector<int> countScans(std::vector<int> &A, std::vector<int> &X, std::vector<int> &V){
	int Q = X.size();
	int N = A.size();
	vector<int> ans(Q, 0);
	vector<set<int>> f(101);
	for(int i = 0; i < N; i++){
		f[A[i]].insert(i);
	}
	for(int i = 0; i < Q; i++){
		f[A[X[i]]].erase(X[i]);
		A[X[i]] = V[i];
		f[A[X[i]]].insert(X[i]);
		int x = 0;
		for(auto st : f){
			if(st.empty()) continue;
			x += st.size();
			int mx = *st.rbegin();
			ans[i] = max(ans[i], mx - x + 1);
		}
	}
	return ans;
}

//
/*
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]);
}
//*/
// by me

Compilation message (stderr)

/usr/bin/ld: /tmp/cciFshVB.o: in function `main':
grader.cpp:(.text.startup+0x181): undefined reference to `countScans(std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status