Submission #43425

#	Time	Username	Problem	Language	Result	Execution time	Memory
43425		Hassoony	Cake (CEOI14_cake)	C++14	100 / 100	1208 ms	6628 KiB

cake

#include<bits/stdc++.h>

using namespace std;
typedef long long ll;
const int MX=250090;
int n,Q,st,a[MX],seg[MX*5],x,y,orig[MX];
vector<int>v;
string s;
char oo[MX];
void build(int node,int l,int r){
    if(l==r){
        seg[node]=a[l];
        return;
    }
    int mid=(l+r)/2;
    build(node*2,l,mid);
    build(node*2+1,mid+1,r);
    seg[node]=max(seg[node*2],seg[node*2+1]);
}
bool cmp(int x,int y){
    return a[x]>a[y];
}
void up(int node,int l,int r,int ind,int val){
    if(l>ind||r<ind)return;
    if(l==r){
        seg[node]=val;
        return;
    }
    int mid=(l+r)/2;
    up(node*2,l,mid,ind,val);
    up(node*2+1,mid+1,r,ind,val);
    seg[node]=max(seg[node*2],seg[node*2+1]);
}
int q(int node,int l,int r,int s,int e){
    if(l>e||r<s)return 0;
    if(l>=s&&r<=e)return seg[node];
    int mid=(l+r)/2;
    return max(q(node*2,l,mid,s,e),q(node*2+1,mid+1,r,s,e));
}
int q1(int node,int l,int r,int s,int e,int val){
	if(s>e)return 0;
	if(l>e||r<s)return 0;
	if(seg[node]<=val)return 0;
	int mid=(l+r)/2;
	if(l>=s&&r<=e){
		if(l==r)return r;
		if(seg[node*2+1]>val)return q1(node*2+1,mid+1,r,s,e,val);
		return q1(node*2,l,mid,s,e,val);
	}
	int ret=q1(node*2+1,mid+1,r,s,e,val);
	if(ret!=0)return ret;
	return q1(node*2,l,mid,s,e,val);
}
int q2(int node,int l,int r,int s,int e,int val){
	if(s>e)return n+1;
	if(l>e||r<s)return n+1;
	if(seg[node]<=val)return n+1;
	int mid=(l+r)/2;
	if(l>=s&&r<=e){
		if(l==r)return r;
		if(seg[node*2]>val)return q2(node*2,l,mid,s,e,val);
		return q2(node*2+1,mid+1,r,s,e,val);
	}
	int ret=q2(node*2,l,mid,s,e,val);
	if(ret!=n+1)return ret;
	return q2(node*2+1,mid+1,r,s,e,val);
}
int main(){
    memset(orig,-1,sizeof(orig));
    scanf("%d%d",&n,&st);
    for(int i=1;i<=n;i++){
        scanf("%d",&a[i]);
        if(a[i]>n-10)v.push_back(i);
    }
    sort(v.begin(),v.end(),cmp);
    for(int i=0;i<v.size();i++)orig[v[i]]=i;
    build(1,1,n);
    int val=n;
    scanf("%d",&Q);
    while(Q--){
        scanf("%s",&oo);s=oo;
        if(s=="E"){
            scanf("%d%d",&x,&y);
            int idx=orig[x];
			for(auto pp:v)orig[pp]=-1;
			if(idx==-1)idx=v.size()-1;
			for(int i=idx;i>=y;i--)v[i]=v[i-1];
			v[y-1]=x;
			val+=11;
			for(int i=0;i<v.size();i++){
				orig[v[i]]=i;
				up(1,1,n,v[i],val-i);
			}
        }
        else{
            scanf("%d",&x);
            if(x==st){
                puts("0");
                continue;
            }
            if(x<st){
                int mn=q(1,1,n,x,st-1);
                int ans=q2(1,1,n,st+1,n,mn);
                int res=ans-x-1;
                cout<<res<<endl;
            }
            else{
                int mn=q(1,1,n,st+1,x);
                int ans=q1(1,1,n,1,st-1,mn);
                int res=x-ans-1;
                cout<<res<<endl;
            }
        }
    }
}
/*
12 1
1 2 3 4 5 6 7 8 9 10 11 12
20
E 1 1
*/

Compilation message (stderr)

cake.cpp: In function 'int main()':
cake.cpp:76:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();i++)orig[v[i]]=i;
                  ^
cake.cpp:81:23: warning: format '%s' expects argument of type 'char*', but argument 2 has type 'char (*)[250090]' [-Wformat=]
         scanf("%s",&oo);s=oo;
                       ^
cake.cpp:90:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=0;i<v.size();i++){
                 ^
cake.cpp:70:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&st);
                         ^
cake.cpp:72:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&a[i]);
                          ^
cake.cpp:79:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&Q);
                   ^
cake.cpp:81:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s",&oo);s=oo;
                        ^
cake.cpp:83:32: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d%d",&x,&y);
                                ^
cake.cpp:96:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&x);
                           ^

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50