Submission #31042

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
31042	2017-08-05 15:37:38	TAMREF	트리 (KOI16_tree)	C++11	100 / 100	929 ms	51424 KiB

tree

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#include <bits/stdc++.h>
using namespace std;
const int mx=400005, ms=1049000;
struct Segtree{
    int arr[mx], seg[ms];
    int n, l, r, i, v;
    int _geti(){
        int now=1,s=0,e=n-1;
        while(s<=e){
            if(seg[now]){
                if(s==e) arr[s]=max(arr[s],seg[now]);
                else{
                    seg[now<<1]=max(seg[now<<1],seg[now]);
                    seg[now<<1|1]=max(seg[now<<1|1],seg[now]);
                }
                seg[now]=0;
            }
            if(s==e) return arr[s];
            int m=(s+e)>>1;
            now<<=1;
            i>m?(now|=1,s=m+1):e=m;
        }
    }
    int geti(int _i){
        i=_i;
        return _geti();
    }
    void _upd(int now, int s, int e){
        if(seg[now]){
            if(s==e) arr[s]=max(arr[s],seg[now]);
 
 
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Compilation message (stderr)

tree.cpp: In member function 'int Segtree::_geti()':
tree.cpp:23:5: warning: control reaches end of non-void function [-Wreturn-type]
     }
     ^

• Subtask 1: 9 / 9
• Subtask 2: 13 / 13
• Subtask 3: 14 / 14
• Subtask 4: 19 / 19
• Subtask 5: 45 / 45