oj.uz

Submission #699072

# Submission time Handle Problem Language Result Execution time Memory
699072 2023-02-15T14:26:37 Z dkblossom Self Study (JOI22_ho_t2) C++14
0 / 100
 314 ms 5012 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 = 1000000000000000000;

	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 -= 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;
	assert(l!=0);

	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 2 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 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 163 ms 4992 KB Output is correct
12 Correct 168 ms 4992 KB Output is correct
13 Correct 153 ms 4992 KB Output is correct
14 Incorrect 314 ms 4988 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 4884 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 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 89 ms 4988 KB Output is correct
10 Correct 58 ms 4996 KB Output is correct
11 Correct 43 ms 4996 KB Output is correct
12 Correct 34 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4960 KB Output is correct
18 Incorrect 7 ms 5012 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 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 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 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 163 ms 4992 KB Output is correct
12 Correct 168 ms 4992 KB Output is correct
13 Correct 153 ms 4992 KB Output is correct
14 Incorrect 314 ms 4988 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 4884 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 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 89 ms 4988 KB Output is correct
10 Correct 58 ms 4996 KB Output is correct
11 Correct 43 ms 4996 KB Output is correct
12 Correct 34 ms 4948 KB Output is correct
13 Correct 3 ms 4948 KB Output is correct
14 Correct 2 ms 4948 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 2 ms 4948 KB Output is correct
17 Correct 2 ms 4960 KB Output is correct
18 Incorrect 7 ms 5012 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# 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 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 3 ms 4948 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 4 ms 4948 KB Output is correct
11 Correct 163 ms 4992 KB Output is correct
12 Correct 168 ms 4992 KB Output is correct
13 Correct 153 ms 4992 KB Output is correct
14 Incorrect 314 ms 4988 KB Output isn't correct
15 Halted 0 ms 0 KB -