Submission #1152059

#	Time	Username	Problem	Language	Result	Execution time	Memory
1152059		brover29	Bubble Sort 2 (JOI18_bubblesort2)	C++20	Compilation error	0 ms	0 KiB

bubblesort2

#include "bubblesort2.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll N=1e6+29;
vector<int>B;
ll st[4*N];
void build(ll v,ll l,ll r){
    if(l==r){
        st[v]=0;
        return;
    }
    ll mid=(r+l)>>1;
    build(v*2,l,mid);
    build(v*2+1,mid+1,r);
    st[v]=0;
}void upd(ll v,ll l,ll r,ll pos){
    if(l==r){
        st[v]++;
        return;
    }
    ll mid=(r+l)>>1;
    if(pos<=mid)upd(v*2,l,mid,pos);
    else upd(v*2+1,mid+1,r,pos);
    st[v]=st[v*2]+st[v*2+1];
}ll get(ll v,ll l,ll r,ll x,ll y){
    if(y<l||r<x||x>y)return 0;
    if(x<=l&&r<=y){
        return st[v];
    }
    ll mid=(r+l)/2;
    return (get(v*2,l,mid,x,y)+get(v*2+1,mid+1,r,x,y));
}map<ll,ll>mp;
set<ll>s;
ll timer,res[N];
vector<int> countScans(vector<int> A,vector<int> X,vector<int> V){
	ll Q=X.size();
	for(ll i:A)s.insert(i);
	vector<int> answer;
	for (int j=0;j<Q;j++) {
		s.insert(V[j]);
		ll mx=0;
	}for(ll i:s){
        mp[i]=++timer;
	}for(auto &i:A)i=mp[i];
	for(ll i=0;i<A.size();i++){
        res[i]=(get(1,1,1e6,A[i]+1,1e6));
        upd(1,1,1e6,A[i]);

	}
	for (int j=0;j<Q;j++) {
		ll mx=0;
		V[j]=mp[V[j]];
		res[X[j]]=0;
		for(ll i=0;i<X[j];i++){
            if(A[i]>V[j])res[X[j]]++;
		}
		for(ll i=X[j]+1;i<A.size();i++){
            if(A[i]<A[X[j]]&&V[j]<A[i])
				ans[i]--;
			else if(A[i]>A[x[j]]&&V[j]>A[i])
				ans[i]++;
		}for(ll i=0;i<A.size();i++){
            mx=max(mx,res[i]);
		}
		A[X[j]]=V[j];
		answer.push_back(mx);
	}
	return answer;
}
//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)

bubblesort2.cpp: In function 'std::vector<int> countScans(std::vector<int>, std::vector<int>, std::vector<int>)':
bubblesort2.cpp:60:33: error: 'ans' was not declared in this scope; did you mean 'abs'?
   60 |                                 ans[i]--;
      |                                 ^~~
      |                                 abs
bubblesort2.cpp:61:40: error: 'x' was not declared in this scope
   61 |                         else if(A[i]>A[x[j]]&&V[j]>A[i])
      |                                        ^
bubblesort2.cpp:62:33: error: 'ans' was not declared in this scope; did you mean 'abs'?
   62 |                                 ans[i]++;
      |                                 ^~~
      |                                 abs