oj.uz

Submission #1089371

# Submission time Handle Problem Language Result Execution time Memory
1089371 2024-09-16T10:55:56 Z KluydQ XORanges (eJOI19_xoranges) C++17
55 / 100
 22 ms 11612 KB 
//#pragma GCC optimize ("O3")
//#pragma GCC target ("sse4")

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

#define ll long long
#define ld long double
#define ull unsigned long long
#define pb push_back	
#define pob pop_back
#define int long long
#define int2 __int128_t
#define Shrek_Crush228 ios_base::sync_with_stdio(0), cin.tie(0);
#define F first
#define S second
#define FOR( i, x, n, d ) for( int i = x; i <= n; i += d )
#define FORR( i, x, n, d ) for( int i = x; i >= n; i -= d )
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
#define no cout << "NO\n"
#define yes cout << "YES\n"
#define nep next_permutation
#define sigma signed
#define pii pair <int, int> 

using namespace std;

string alp = "abcdefghijklmnopqrstuvwxyz";
string ae = "aoeiuy";
string nums = "123456789";

const int N = 1e5 + 123;
const int inf = 1e18;
const int MOD = 1e9 + 7;
const int MOD1 = 998244353;
const long long maxsum = 1e14;

int a[N], b[N], c[N], l, r, n, k, m, w, sum, sum1, y, ans1, mx = -inf, mn = inf, ind, ind1, pref[N], suf[N];
string s, s1;
ll ans, x;

template<class T> using ordered_multiset = tree<T, null_type, less_equal<T>, rb_tree_tag, tree_order_statistics_node_update>;

struct RT
{
	int sum, l, r, ind;	
};
int gcd( int a, int b )
{
	return ( b ? gcd( b, a % b ) : a );
}
int lcm( int a, int b )
{
	return a / gcd( a, b ) * b;
}
int bp( int a, int b, int m )
{
	if( !b ) return 1;
	if( b & 1 ) return bp( a, b >> 1, m ) * bp( a, b >> 1, m ) % m * a % m;
	else return bp( a, b >> 1, m ) * bp( a, b >> 1, m ) % m;
}
struct po
{
	int mn, sum, mx;
};
pii t[4 * N];

void update( int pos, int val, int v = 1, int tl = 1, int tr = n )
{
	if( tl == tr ) 
	{
		if( tl % 2 ) t[v] = { val, 0 };
		else t[v] = { 0, val };
		
		return;
	}
	int tm = ( tl + tr ) >> 1;
	
	if( pos <= tm ) update( pos, val, v + v, tl, tm );
	else update( pos, val, v + v + 1, tm + 1, tr );
	
	t[v].F = t[v + v].F ^ t[v + v + 1].F;
	t[v].S = t[v + v].S ^ t[v + v + 1].S;
}
int get( int l, int r, int tp, int v = 1, int tl = 1, int tr = n )
{
	if( tl > r || l > tr ) return 0;
	if( l <= tl && tr <= r ) return ( tp ? t[v].F : t[v].S );
	
	int tm = ( tl + tr ) >> 1;
	
	return get( l, r, tp, v + v, tl, tm ) ^ get( l, r, tp, v + v + 1, tm + 1, tr );
}
void solve()
{
	cin >> n >> m;
	
	FOR( i, 1, n, 1 ) cin >> a[i], update( i, a[i] );
	
	while( m -- )
	{
		int tp; cin >> tp;
		cin >> l >> r;
		
		if( tp == 1 ) 
		{
			update( l, r );
			continue;
		}
		else
		{
			if(( r - l ) % 2 ) ans = 0;
			else if( l % 2 ) ans = get( l, r, 1 );
			else ans = get( l, r, 0 );
		}
		cout << ans << '\n'; ans = 0;
	}
}
sigma main() 
{
	//freopen("rmq.in", "r", stdin);
	//freopen("rmq.out", "w", stdout);
	    
    Shrek_Crush228	
    
    int test = 1;
    
    if( !test ) cin >> test;
	
	while( test -- )
	{
		solve();
	}
}
// solved by KluydQ

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct

Subtask #2
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 3 ms 704 KB Output is correct
14 Correct 2 ms 860 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 22 ms 11612 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #5
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 468 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 2 ms 860 KB Output is correct
12 Correct 3 ms 860 KB Output is correct
13 Correct 3 ms 704 KB Output is correct
14 Correct 2 ms 860 KB Output is correct
15 Runtime error 22 ms 11612 KB Execution killed with signal 11
16 Halted 0 ms 0 KB -