Submission #819813

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
8198132023-08-10 13:50:44BulaArranging Shoes (IOI19_shoes)C++14
50 / 100
338 ms34388 KiB
#include <bits/stdc++.h>
#include "shoes.h"
using namespace std;
#define ll long long
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define ff first
#define sc second
//#define int ll
const ll mod=1e9+7, N = 2e5 + 1;
vector<int> t(4 * N);
int get(int v, int tl, int tr, int l, int r) {
if (l > r)
return 0;
if (l == tl && r == tr) {
return t[v];
}
int tm = (tl + tr) / 2;
return get(v*2, tl, tm, l, min(r, tm))+get(v*2+1, tm+1, tr, max(l, tm+1), r);
}
void up(int v, int tl, int tr, int pos, int new_val) {
if (tl == tr) {
t[v] = new_val;
} else {
int tm = (tl + tr) / 2;
 
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