oj.uz

Submission #699071

# Submission time Handle Problem Language Result Execution time Memory
699071 2023-02-15T14:24:18 Z dkblossom Self Study (JOI22_ho_t2) C++14
0 / 100
 312 ms 10828 KB 
#include<bits/stdc++.h>
using namespace std;

#pragma gcc optimize('ofast','unroll-loops')

#define endl '\n'
#define ff first
#define ss second
#define pb emplace_back
#define mp make_pair
#define all(x) x.begin(),x.end()
#define sz(x) (int)x.size()
#define rep(a,b,c) for(int a=b;a<c;a++)

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;

const ll maxn = 300005;
const ll maxm = 200005;
const ll mod = 1000000007;

void solve(){
	int n, m;
	ll arr[maxn];
	ll brr[maxn];

	cin >> n >> m;
	rep(i,0,n) cin >> arr[i];
	rep(i,0,n) cin >> brr[i], arr[i] = max(arr[i],brr[i]);

	ll l = 0;
	ll r = LLONG_MAX/2-1;

	while(l+1<r){
		ll mid = (l+r>>1);
		ll ac = 0;
		//cout<<mid<<endl;
		rep(i,0,n){
			if(arr[i]*m>=mid) ac -= max(0ll,m-mid/arr[i]-(mid%arr[i]?1:0));
			else ac += (mid-arr[i]*m)/brr[i]+((mid-arr[i]*m)%brr[i]?1:0);
			//cout << ac << ' ';
		}//cout<<endl;
		if(ac>0) r = mid;
		else l = mid;
	}

	//cout<<(-1)/2<<endl;//int mid=18,ac=0;rep(i,0,n){if(arr[i]*m>=mid)ac-=m-(mid-1)/arr[i]-1;else ac+=(mid-arr[i]*m-1)/brr[i]+1;}cout<<ac<<endl;

	cout << l << endl;
}

int main(){
	//freopen("input.txt","r",stdin);
	//freopen("sol.txt","w",stdout);
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int t = 1;
	//cin >> t;
	while(t--) solve();
}

Compilation message

Main.cpp:4: warning: ignoring '#pragma gcc optimize' [-Wunknown-pragmas]
    4 | #pragma gcc optimize('ofast','unroll-loops')
      | 
Main.cpp: In function 'void solve()':
Main.cpp:36:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   36 |   ll mid = (l+r>>1);
      |             ~^~

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 169 ms 10828 KB Output is correct
12 Correct 164 ms 10748 KB Output is correct
13 Correct 157 ms 8728 KB Output is correct
14 Incorrect 312 ms 8808 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 83 ms 7792 KB Output is correct
10 Correct 60 ms 7028 KB Output is correct
11 Correct 44 ms 6352 KB Output is correct
12 Correct 35 ms 6148 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 5012 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Incorrect 7 ms 4948 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 169 ms 10828 KB Output is correct
12 Correct 164 ms 10748 KB Output is correct
13 Correct 157 ms 8728 KB Output is correct
14 Incorrect 312 ms 8808 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 3 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 3 ms 4948 KB Output is correct
7 Correct 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 83 ms 7792 KB Output is correct
10 Correct 60 ms 7028 KB Output is correct
11 Correct 44 ms 6352 KB Output is correct
12 Correct 35 ms 6148 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 2 ms 5012 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4948 KB Output is correct
18 Incorrect 7 ms 4948 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 2 ms 4948 KB Output is correct
3 Correct 2 ms 4948 KB Output is correct
4 Correct 2 ms 4948 KB Output is correct
5 Correct 2 ms 4948 KB Output is correct
6 Correct 2 ms 4948 KB Output is correct
7 Correct 2 ms 4948 KB Output is correct
8 Correct 3 ms 4948 KB Output is correct
9 Correct 3 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 169 ms 10828 KB Output is correct
12 Correct 164 ms 10748 KB Output is correct
13 Correct 157 ms 8728 KB Output is correct
14 Incorrect 312 ms 8808 KB Output isn't correct
15 Halted 0 ms 0 KB -