Submission #1084533

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1084533	2024-09-06 11:18:38	BLOBVISGOD	Growing Trees (BOI11_grow)	C++17	100 / 100	83 ms	3284 KiB

grow

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#include "bits/stdc++.h"
#pragma GCC optimize("O3")
using namespace std;
#define rep(i,a,b) for(int i=(a); i<(b); ++i)
#define all(x) x.begin(),x.end()
#define sz(x) int(x.size())
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
struct fentree{
    vi a;
    void add(int at, int val){
        for(at++; at<sz(a); at+=at&(-at)) a[at] += val;
    }void addrange(int l, int r, int val){ // [  )
        add(r,-val);
        add(l,val);
    }
    fentree(vi b){
        a.resize(sz(b)+1);
        rep(i,0,sz(b)) addrange(i,i+1,b[i]);
    }int get(int at){
        int ans = 0;
        for(at++; at>0; at-=at&(-at)) ans += a[at];
        return ans;
    }
};
int main(){
    cin.tie(NULL),cin.sync_with_stdio(false);
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10