Submission #751841

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
7518412023-06-01 15:13:161075508020060209tcSequence (APIO23_sequence)C++17
28 / 100
2082 ms10316 KiB
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int lowbit(int x){return x&-x;}
struct BIT{
vector<int>bit;
int MX;
void init(int len){
for(int i=0;i<=len+100;i++){
bit.push_back(0);
}
MX=len;
}
void upd(int pl,int vl){
while(pl<=MX){
bit[pl]+=vl;
pl+=lowbit(pl);
}
}
int qsum(int pl){
int ret=0;
while(pl){
ret+=bit[pl];
pl-=lowbit(pl);
}
return ret;
}
int k_th(int k){
int lg=__lg(MX);
 
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