제출 #1086074

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1086074		AliHasanli	원숭이와 사과 나무 (IZhO12_apple)	C++17	0 / 100	2031 ms	344 KiB

apple

#include<bits/stdc++.h>
using namespace std;
struct node
{
    node* left;
    node* right;
    unsigned long long val;
    node()
    {
        left=NULL;
        right=NULL;
        val=0;
    }
    void c()
    {
        if(left==NULL)left=new node();
        if(right==NULL)right=new node();
    }
};
node* root=new node();
//node* lazy=new node();
void update(node* root,unsigned long long l,unsigned long long r,unsigned long long ql,unsigned long long qr)
{
    if(l>r || ql>qr || ql>r || l>qr)return;
    if(ql<=l && r<=qr){root->val=(r-l+1);return;}
    root->c();
    if(root->val==r-l+1)root->left->val=((l+r)/2-l+1),root->right->val=(r-(l+r)/2);
    update(root->left,l,(l+r)/2,ql,qr),update(root->right,(l+r)/2+1,r,ql,qr);
    root->val=(root->left->val)+(root->right->val);
}
unsigned long long query(node* root,unsigned long long l,unsigned long long r,unsigned long long ql,unsigned long long qr)
{
    //cout<<"A "<<l<<" "<<r<<endl;
    if(l>r || ql>qr || ql>r || l>qr)return 0;
    if(ql<=l && r<=qr)return root->val;
    root->c();
    if(root->val==r-l+1)root->left->val=((l+r)/2-l+1),root->right->val=(r-(l+r)/2);
    return query(root->left,l,(l+r)/2,ql,qr)+query(root->right,(l+r)/2+1,r,ql,qr);
}
int main()
{
    freopen("f.in","r",stdin);
    freopen("f.out","w",stdout);
    int m;
    cin>>m;
    unsigned long long c=0;
    while(m--)
    {
        int t;
        cin>>t;
        if(t==1)
        {
            unsigned long long l,r;
            cin>>l>>r;
            l--;r--;
            cout<<query(root,0,999999999,l+c,r+c)<<endl;
            c+=query(root,0,999999999,l+c,r+c);
        }
        else
        {
            unsigned long long l,r;
            cin>>l>>r;
            l--;r--;
            update(root,0,999999999,l+c,r+c);
        }
    }
    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

apple.cpp: In function 'int main()':
apple.cpp:42:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     freopen("f.in","r",stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~
apple.cpp:43:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |     freopen("f.out","w",stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 100