# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
702861 | Nursik | Paths (RMI21_paths) | C++14 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include "weirdtree.h"
#include <iostream>
#include <fstream>
#include <iomanip>
#include <vector>
#include <set>
#include <map>
#include <cstring>
#include <string>
#include <cmath>
#include <cassert>
#include <ctime>
#include <algorithm>
#include <sstream>
#include <list>
#include <queue>
#include <deque>
#include <stack>
#include <cstdlib>
#include <cstdio>
#include <iterator>
#include <functional>
#include <unordered_set>
#include <unordered_map>
#include <stdio.h>
#include <bitset>
#include <cstdint>
#include <cassert>
#include <functional>
#include <complex>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
#define f first
#define s second
const int maxn = 1e6 + 200, maxm = 1e4 + 200, inf = 1e9;
int n;
ll t[maxn * 4];
pair<ll, ll> tmx[maxn * 4];
void upd(int pos, ll val, int v = 1, int tl = 1, int tr = n){
if (tl == tr){
t[v] += val;
tmx[v].s = tl;
tmx[v].f += val;
return;
}
int tm = (tl + tr) / 2;
if (pos <= tm){
upd(pos, val, v + v, tl, tm);
}
else{
upd(pos, val, v + v + 1, tm + 1, tr);
}
t[v] = t[v + v] + t[v + v + 1];
if (tmx[v + v].f == tmx[v + v + 1].f){
tmx[v].f = tmx[v + v].f, tmx[v].s = min(tmx[v + v].s, tmx[v + v + 1].s);
}
else{
tmx[v] = max(tmx[v + v], tmx[v + v + 1]);
}
// cout << tl << " " << tr << " " << t[v] << '\n';
}
ll get(int l, int r, int v = 1, int tl = 1, int tr = n){
if (l <= tl && tr <= r){
return t[v];
}
if (l > tr || r < tl)
return 0;
int tm = (tl + tr) / 2;
return get(l, r, v + v, tl, tm) + get(l, r, v + v + 1, tm + 1, tr);
}
pair<ll, ll> getmx(int l, int r, int v = 1, int tl = 1, int tr = n){
if (l <= tl && tr <= r){
return tmx[v];
}
if (l > tr || r < tl)
return mp(0, 0);
int tm = (tl + tr) / 2;
return max(getmx(l, r, v + v, tl, tm), getmx(l, r, v + v + 1, tm + 1, tr));
}
void initialise(int N, int Q, int h[]) {
// Your code here.
n = N;
for (int i = 1; i <= n; ++i){
upd(i, h[i]);
// exit(0);
}
// cout << get(1, 1) << " " << get(2, 2) << '\n';
}
void cut(int l, int r, int k) {
if (k == 1){
pair<ll, ll> cur = getmx(l, r);
int pos = cur.s;
if (cur.f > 0){
upd(pos, -1);
}
}
}
void magic(int i, int x) {
// Your code here.
ll val = get(i, i);
ll z = x;
upd(i, z - val);
}
long long int inspect(int l, int r) {
// Your code here.
return get(l, r);
}