Submission #679958

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
679958	2023-01-09 16:57:32	PoonYaPat	Election (BOI18_election)	C++14	100 / 100	515 ms	27856 KiB

election

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;
struct A {
    int L,R,sum,ans;
} s[1<<20];
int n;
char c[500001];
A merge(A a, A b) {
    A res;
    res.L=max(a.L,a.sum+b.L);
    res.R=max(b.R,b.sum+a.R);
    res.sum=a.sum+b.sum;
    res.ans=max({a.L+b.R,a.ans+b.sum,b.ans+a.sum});
    return res;
}
void build(int l, int r, int idx) {
    if (l==r) {
        if (c[l]=='T') s[idx]={1,1,1,1};
        else s[idx]={0,0,-1,0};
    } else {
        int mid=(l+r)/2;
        build(l,mid,2*idx);
        build(mid+1,r,2*idx+1);
        s[idx]=merge(s[2*idx],s[2*idx+1]);
    }
}
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 28 / 28
• Subtask 2: 54 / 54
• Subtask 3: 18 / 18