oj.uz

Submission #333911

# Submission time Handle Problem Language Result Execution time Memory
333911 2020-12-08T02:55:57 Z amunduzbaev Simple game (IZhO17_game) C++14
100 / 100
 248 ms 9708 KB 
#include <bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define ll long long 
#define ld long double 
#define pii pair<int, int>
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define prc(n) fixed << setprecision(n)
#define fastios ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pi acos(-1);
const int inf = 1e9+7;
const int N = 1e6+5;

int a[N];

struct TREE{
	vector<int>tree;
	int s = 2;
	void init(int n){
		while(s < n) s*=2;
		tree.assign(2*s, 0);
	}
	
	void set(int l, int r, int v, int lx, int rx, int x){
		if(lx > r || rx < l) return;
		if(lx >= l && rx <= r){
			tree[x] += v;
			return;
		}
		int m = (lx + rx)/2;
		set(l, r, v, lx, m, x*2);
		set(l, r, v, m+1, rx, x*2+1);
	}
	
	int fnd(int i, int lx, int rx, int x){
		if(lx == rx){
			return tree[x];
		}
		
		int m = (lx + rx)/2;
		if(i <= m) return (tree[x] + fnd(i, lx, m, x*2));
		else return (tree[x] + fnd(i, m+1, rx, x*2+1));
	}
	
	void sett(int l, int r, int v){
		if(l == r) return;
		set(min(l, r), max(l, r), v, 1, s, 1);
	}
	
	int rfnd(int pos){
		return fnd(pos, 1, s, 1);
	}
}tree;

void solve(){
	fastios
	
	int n, m;
	cin>>n>>m;
	tree.init(N);
	for(int i=0;i<n;i++){
		cin>>a[i];
		if(i) tree.sett(a[i-1], a[i], 1);
	}
	while(m--){
		int t;
		cin>>t;
		if(t == 1){
			int p, cv;
			cin>>p>>cv;
			--p;
			if(p) tree.sett(a[p], a[p-1], -1);
			if(p+1 < n) tree.sett(a[p], a[p+1], -1);
			a[p] = cv;
			if(p) tree.sett(a[p-1], a[p], 1);
			if(p+1 < n) tree.sett(a[p+1], a[p], 1);
		}
		
		else{
			int hh;
			cin>>hh;
			cout<<tree.rfnd(hh)<<"\n";
		}
	}
	
	return;
}


 
int main(){
	fastios
	int t = 1;
	//cin>>t;
	while(t--) solve();
	return 0;
}

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8556 KB Output is correct
2 Correct 8 ms 8556 KB Output is correct
3 Correct 8 ms 8556 KB Output is correct
4 Correct 8 ms 8556 KB Output is correct
5 Correct 9 ms 8556 KB Output is correct
6 Correct 8 ms 8556 KB Output is correct
7 Correct 8 ms 8556 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8556 KB Output is correct
2 Correct 8 ms 8556 KB Output is correct
3 Correct 8 ms 8556 KB Output is correct
4 Correct 8 ms 8556 KB Output is correct
5 Correct 9 ms 8556 KB Output is correct
6 Correct 8 ms 8556 KB Output is correct
7 Correct 8 ms 8556 KB Output is correct
8 Correct 62 ms 9184 KB Output is correct
9 Correct 119 ms 9580 KB Output is correct
10 Correct 126 ms 9708 KB Output is correct
11 Correct 45 ms 9196 KB Output is correct
12 Correct 97 ms 9580 KB Output is correct
13 Correct 92 ms 9580 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 8556 KB Output is correct
2 Correct 8 ms 8556 KB Output is correct
3 Correct 8 ms 8556 KB Output is correct
4 Correct 8 ms 8556 KB Output is correct
5 Correct 9 ms 8556 KB Output is correct
6 Correct 8 ms 8556 KB Output is correct
7 Correct 8 ms 8556 KB Output is correct
8 Correct 62 ms 9184 KB Output is correct
9 Correct 119 ms 9580 KB Output is correct
10 Correct 126 ms 9708 KB Output is correct
11 Correct 45 ms 9196 KB Output is correct
12 Correct 97 ms 9580 KB Output is correct
13 Correct 92 ms 9580 KB Output is correct
14 Correct 233 ms 9324 KB Output is correct
15 Correct 248 ms 9196 KB Output is correct
16 Correct 239 ms 9248 KB Output is correct
17 Correct 232 ms 9292 KB Output is correct
18 Correct 240 ms 9464 KB Output is correct