Submission #1093158

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1093158	2024-09-26 04:00:46	vukhacminh	Split the sequence (APIO14_sequence)	C++17	100 / 100	918 ms	86452 KiB

sequence

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#include<bits/stdc++.h>
#define all(x) (x).begin() , (x).end()
#define pll pair<long long, long long>
#define pii pair<int , int>
#define fi first
#define se second
#define bit(i,j) ((j >> i) & 1)
using namespace std;
 
#define int long long
 
const long long inf = 1e18+1;
const int mod = 998244353;
const int MAXN = 100000;
 
int x[MAXN+10] , pre[MAXN + 10];
int dp[MAXN+10] , lst[MAXN+ 10] ;int32_t trace[MAXN+10][210];
 
void compute(int l , int r , int optl , int optr , int k){
    if(l > r) return;
    int m = l + r >> 1;
    pll res = {-1e18 , -1};
    for(int i = optl ; i <= min(m , optr) ; i++){
        int t = lst[i-1] + ((pre[m] - pre[i-1]) * pre[i-1]);
        res= max(res , {t ,  i});
    }
    trace[m][k] = res.se-1;
    dp[m] = res.fi;
    int opt = res.se;
    compute(l , m-1 , optl , opt , k);
 
 
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Compilation message (stderr)

sequence.cpp: In function 'void compute(long long int, long long int, long long int, long long int, long long int)':
sequence.cpp:21:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   21 |     int m = l + r >> 1;
      |             ~~^~~

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 17 / 17
• Subtask 5: 21 / 21
• Subtask 6: 29 / 29