Submission #985722

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
985722	2024-05-18 15:01:39	gggkik	Feast (NOI19_feast)	C++17	71 / 100	100 ms	136448 KiB

feast

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pli = pair<ll,int>;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
const ll inf = 1e18;
const int MXN = 3e5+5;
struct node{
    pli l, r; // v, pos
    pair<ll,pii> m;
    ll a;
}t[MXN<<2], nt[MXN<<2];
bool lz[MXN];
int A[MXN];
node z = {{-inf,0},{-inf,0},{-inf,{0,0}},0};
node operator+(const node &i, const node &j){
    node k;
    k.l = max(i.l,{i.a+j.l.first,j.l.second});
    k.r = max(j.r,{i.r.first+j.a,i.r.second});
    k.m = max(i.m,j.m);
    k.m = max(k.m,{i.r.first+j.l.first,{i.r.second,j.l.second}});
    k.a = i.a+j.a;
    return k;
}
void push(int x,int s,int e){
    if(!lz[x]) return;
    swap(t[x],nt[x]);
    if(s!=e){
        lz[x*2] ^= lz[x];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

feast.cpp: In function 'void upd(int, int, int, int, int)':
feast.cpp:42:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |     int mid = s+e>>1;
      |               ~^~
feast.cpp: In function 'void init(int, int, int)':
feast.cpp:54:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   54 |     int mid = s+e>>1;
      |               ~^~

• Subtask 1: 4 / 4
• Subtask 2: 8 / 8
• Subtask 3: 18 / 18
• Subtask 4: 10 / 10
• Subtask 5: 11 / 11
• Subtask 6: 20 / 20
• Subtask 7: 0 / 29