oj.uz

Submission #619216

# Submission time Handle Problem Language Result Execution time Memory
619216 2022-08-02T10:33:33 Z StrawHatWess Self Study (JOI22_ho_t2) C++17
0 / 100
 315 ms 6180 KB 
//Never stop trying
#include "bits/stdc++.h"
using namespace std;
#define boost ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)

typedef long long ll;
typedef string str;
typedef long double ld;
typedef pair<int, int> pi;
#define fi first
#define se second
typedef vector<int> vi;
typedef vector<pi> vpi;
#define pb push_back
#define eb emplace_back
#define sz(x) (int)x.size()
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define endl "\n"
#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)

const int MOD = 1e9 + 7; //998244353
const ll INF = 1e18;
const int MX = 3e5 + 10;
const int nx[4] = {0, 0, 1, -1}, ny[4] = {1, -1, 0, 0}; //right left down up

template<class T> using V = vector<T>;
template<class T> bool ckmin(T& a, const T& b) { return a > b ? a = b, 1 : 0; }
template<class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; }
ll cdiv(ll a, ll b) { return a / b + ((a ^ b) > 0 && a % b); } // divide a by b rounded up
//constexpr int log2(int x) { return 31 - __builtin_clz(x); } // floor(log2(x))

mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
//mt19937_64 rng(chrono::system_clock::now().time_since_epoch().count());
ll random(ll a, ll b){
    return a + rng() % (b - a + 1);
}
#ifndef LOCAL  
#define cerr if(false) cerr
#endif
#define dbg(x) cerr << #x << " : " << x << endl; 
#define dbgs(x,y) cerr << #x << " : " << x << " / " << #y << " : " << y << endl;
#define dbgv(v) cerr << #v << " : " << "[ "; for(auto it : v) cerr << it << ' '; cerr << ']' << endl;
#define here() cerr << "here" << endl;

void IO() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin); 
    freopen("output.txt", "w", stdout);
#endif
}
/////////////////////////ONLY CLEAN CODES ALLOWED/////////////////////////


ll N,M; 
vector<ll> a(MX), b(MX);

int check(ll L){
	ll n=0; 

	FOR(i,0,N){
        ll needed=(L+a[i]-1)/a[i]; 
        n+=needed-M; 
	}

	return (n<=0); 
}

int main() {
    boost; IO();

    cin>>N>>M; 
    
    FOR(i,0,N) cin>>a[i]; 
    FOR(i,0,N) cin>>b[i]; 

    FOR(i,0,N) ckmax(a[i],b[i]); 

    ll l=0, r=INF, ans; 
    while(l<=r){
    	ll m=(l+r)/2; 

    	if(check(m)) ans=m, l=m+1; 
    	else r=m-1;
    }
    assert(ans>0); 
    cout << ans << endl;
    

    return 0;
}
//Change your approach

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 3 ms 4948 KB Output is correct
4 Correct 3 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 5000 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 159 ms 5656 KB Output is correct
12 Correct 167 ms 5552 KB Output is correct
13 Correct 153 ms 5660 KB Output is correct
14 Correct 157 ms 5660 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Incorrect 315 ms 6180 KB Output isn't correct
17 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 Incorrect 315 ms 6180 KB Output isn't correct
3 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 3 ms 4948 KB Output is correct
4 Correct 3 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 5000 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 159 ms 5656 KB Output is correct
12 Correct 167 ms 5552 KB Output is correct
13 Correct 153 ms 5660 KB Output is correct
14 Correct 157 ms 5660 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Incorrect 315 ms 6180 KB Output isn't correct
17 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 Incorrect 315 ms 6180 KB Output isn't correct
3 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 3 ms 4948 KB Output is correct
4 Correct 3 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 5000 KB Output is correct
8 Correct 2 ms 4948 KB Output is correct
9 Correct 2 ms 4948 KB Output is correct
10 Correct 5 ms 5076 KB Output is correct
11 Correct 159 ms 5656 KB Output is correct
12 Correct 167 ms 5552 KB Output is correct
13 Correct 153 ms 5660 KB Output is correct
14 Correct 157 ms 5660 KB Output is correct
15 Correct 2 ms 4948 KB Output is correct
16 Incorrect 315 ms 6180 KB Output isn't correct
17 Halted 0 ms 0 KB -