Submission #622467

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
622467	2022-08-04 10:00:05	pakapu	Addk (eJOI21_addk)	C++14	100 / 100	1284 ms	3972 KiB

Main

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#pragma GCC optimize ("O3")
#include <iostream>
#include <vector>
using namespace std;
long long tree[131071 * 2 - 1];
int sz;
void init(int n) {
    sz = 1 << (32 - __builtin_clz(n - 1));
}
void set(int pos, int val, int x, int lx, int rx) {
    if(rx - lx == 1) {
        tree[x] = val;
        return;
    }
    int mid = (lx + rx) / 2;
    if(pos >= mid) {
        set(pos, val, x * 2 + 2, mid, rx);
    }
    else {
        set(pos, val, x * 2 + 1, lx, mid);
    }
    tree[x] = tree[x * 2 + 1] + tree[x * 2 + 2];
}
 
 
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• Subtask 1: 36 / 36
• Subtask 2: 56 / 56
• Subtask 3: 8 / 8