Submission #833749

#	Time	Username	Problem	Language	Result	Execution time	Memory
833749		azik21	Bank (IZhO14_bank)	C++17	0 / 100	1 ms	316 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define all(v) (v).begin() , (v).end()
#define nn "\n"
#define ex exit(0);
#define sz(s) (int)(s).size()
const int N = 2e5+5;
int cnt  , ans , bit , n , t , k  ,x  , a , b  , res , p,sum , r   , l ;
char h;
vector<int> v;
int main(){
    ios_base::sync_with_stdio(0) , cin.tie(0) , cout.tie(0);
    cin>> n >> t ;
    int m[n];
    map<int , int >mp;
    for(int i =0 ;i < n ; i++){
        cin>> m[i];
    }
    for(int j =0 ; j < t ; j++){
        cin>> x ;
        mp[x]++;
        v.pb(x);
    }
    sort(all(v));
    for(int i=0;i < n ; i++){
        if(mp[m[i]]>0){
            ans++;
        }
        else {
            l = 0, r = t - 1;
            while (l < r) {
                if (v[l] + v[r] == m[i]) {
                    ans++;
                    break;
                }
                if (v[l] + v[r] < m[i]) {
                    l++;
                }
                if (v[l] + v[r] > m[i]) {
                    r--;
                }
            }
        }
    }
    if(ans==n){
        cout<<"YES";
        ex;
    }
    cout<<"NO";
}

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29