oj.uz

Submission #1033435

# Submission time Handle Problem Language Result Execution time Memory
1033435 2024-07-24T20:23:52 Z hasan2006 Simple game (IZhO17_game) C++17
100 / 100
 43 ms 6904 KB 
#include <bits/stdc++.h>

using namespace std;

#define TL ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define rall(s) s.rbegin(),s.rend()
#define all(s) s.begin(),s.end()
#define pb push_back
#define se second
#define fi first
#define ll long long
#define ld long double
#define YES cout<<"YES\n"
#define Yes cout<<"Yes\n"
#define yes cout<<"yes\n"
#define NO cout<<"NO\n"
#define No cout<<"No\n"
#define no cout<<"no\n"


const int N = 1e6 + 2 , mod = 1e9 + 7;
int a[100002] , d[N];

void ad(int x , int y){
    while(x <= 1000000)
        d[x] += y , x += (x & -x);
}


void add(int x , int y , int k){
    if(x > y)   swap(x , y);
    ad(x , k) , ad(y + 1 , -k);
}

int get(int x){
    int ans = 0;
    while(x > 0)
        ans += d[x] , x -= (x & -x);
    return ans;
}

void solve()
{
    int n , q , i , x , y ,  k ;
    cin>>n>>q;
    for(i = 1; i <= n; i++){
        cin>>a[i];
        if(i != 1)  add(a[i] , a[i - 1] , 1);
    }
    while(q--){
        cin>>k>>x;
        if(k == 1){
            cin>>y;
            if(x > 1)
                add(a[x - 1] , a[x] , -1) , add(a[x - 1] , y , 1);
            if(x < n)
                add(a[x + 1] , a[x] , -1) , add(a[x + 1] , y , 1);
            a[x] = y;
        }else {
            cout<<get(x)<<"\n";
        }
    }
}

int main(){
    TL;

    /*#ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif*/
    int t = 1;
    //cin>>t;
    while(t--)
     {
        solve();
     }
}
// Author : حسن

Subtask #1
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 4188 KB Output is correct
3 Correct 2 ms 4056 KB Output is correct
4 Correct 3 ms 3984 KB Output is correct
5 Correct 2 ms 4184 KB Output is correct
6 Correct 2 ms 4188 KB Output is correct
7 Correct 1 ms 348 KB Output is correct

Subtask #2
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 4188 KB Output is correct
3 Correct 2 ms 4056 KB Output is correct
4 Correct 3 ms 3984 KB Output is correct
5 Correct 2 ms 4184 KB Output is correct
6 Correct 2 ms 4188 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 22 ms 1876 KB Output is correct
9 Correct 34 ms 6904 KB Output is correct
10 Correct 29 ms 6748 KB Output is correct
11 Correct 21 ms 1624 KB Output is correct
12 Correct 24 ms 2788 KB Output is correct
13 Correct 24 ms 2904 KB Output is correct

Subtask #3
51.0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 2 ms 4188 KB Output is correct
3 Correct 2 ms 4056 KB Output is correct
4 Correct 3 ms 3984 KB Output is correct
5 Correct 2 ms 4184 KB Output is correct
6 Correct 2 ms 4188 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 22 ms 1876 KB Output is correct
9 Correct 34 ms 6904 KB Output is correct
10 Correct 29 ms 6748 KB Output is correct
11 Correct 21 ms 1624 KB Output is correct
12 Correct 24 ms 2788 KB Output is correct
13 Correct 24 ms 2904 KB Output is correct
14 Correct 37 ms 6736 KB Output is correct
15 Correct 38 ms 6860 KB Output is correct
16 Correct 43 ms 6868 KB Output is correct
17 Correct 38 ms 6880 KB Output is correct
18 Correct 37 ms 6736 KB Output is correct