Submission #622981

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
622981	2022-08-04 22:29:08	izanbf	Examination (JOI19_examination)	C++14	100 / 100	1697 ms	62316 KiB

examination

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#include <bits/stdc++.h>
using namespace std;
 
struct Point {
  int x, y, z;
};
 
struct Query {
  int a, b, c, id;
};
 
const int B = 850;
const int MAXSZ = 6e5+9;
int bit[MAXSZ]; // binary/fenwick indexed tree
int sz; // bit size
int bit_sum(int r) {
    int ret = 0;
    for (; r >= 0; r = (r & (r + 1)) - 1)
        ret += bit[r];
    return ret;
}
int bit_sum(int l, int r) {
    return bit_sum(r) - bit_sum(l - 1);
}
void bit_add(int idx, int delta) {
    for (; idx < sz; idx = idx | (idx + 1))
 
 
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• Subtask 2: 20 / 20
• Subtask 3: 21 / 21
• Subtask 4: 57 / 57