Submission #1083046

#	Time	Username	Problem	Language	Result	Execution time	Memory
1083046		steveonalex	Self Study (JOI22_ho_t2)	C++17	0 / 100	129 ms	5144 KiB

Main

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
 
#define MASK(i) (1LL << (i))
#define GETBIT(mask, i) (((mask) >> (i)) & 1)
#define ALL(v) (v).begin(), (v).end()
#define block_of_code if(true)
 
ll max(ll a, ll b){return (a > b) ? a : b;}
ll min(ll a, ll b){return (a < b) ? a : b;}
ll gcd(ll a, ll b){return __gcd(a, b);}
ll lcm(ll a, ll b){return a / gcd(a, b) * b;}
 
ll LASTBIT(ll mask){return (mask) & (-mask);}
int pop_cnt(ll mask){return __builtin_popcountll(mask);}
int ctz(ull mask){return __builtin_ctzll(mask);}
int logOf(ull mask){return 63 - __builtin_clzll(mask);}
 
mt19937_64 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
ll rngesus(ll l, ll r){return l + (ull) rng() % (r - l + 1);}
double rngesus_d(double l, double r){
    double cur = rngesus(0, MASK(60) - 1);
    cur /= MASK(60) - 1;
    return l + cur * (r - l);
}
 
template <class T1, class T2>
    bool maximize(T1 &a, T2 b){
        if (a < b) {a = b; return true;}
        return false;
    }
 
template <class T1, class T2>
    bool minimize(T1 &a, T2 b){
        if (a > b) {a = b; return true;}
        return false;
    }
 
template <class T>
    void printArr(T container, string separator = " ", string finish = "\n", ostream &out = cout){
        for(auto item: container) out << item << separator;
        out << finish;
    }
 
template <class T>
    void remove_dup(vector<T> &a){
        sort(ALL(a));
        a.resize(unique(ALL(a)) - a.begin());
    }

ll di(ll a, ll b){
    return a / b + ((a % b) > 0);
}

int main(void){
    ios::sync_with_stdio(0);cin.tie(0); cout.tie(0);
    clock_t start = clock();

    int n; ll m; cin >> n >> m;
    vector<ll> a(n), b(n);
    for(int i = 0; i<n; ++i) cin >> a[i];
    for(int i = 0; i<n; ++i) cin >> b[i];


    ll mi = 1e18;
    for(int i = 0; i<n; ++i) minimize(mi, max(a[i], b[i]));

    ll l = 1, r = 1e18; 
    while(l < r){
        ll mid = (l + r + 1) >> 1;
        ll cnt = 0;
        bool check = true;
        for(int i = 0; i<n; ++i){
            ll cur = di(mid, max(a[i], b[i]));
            if (cur == 0) exit(1);
            if (cur <= m){
                cnt += m - cur;
            }
            else{
                check = false;
                ll fr = mid - max(a[i], b[i]) * m;
                cnt -= di(fr, b[i]);
            }
        }
        // if (check == false && cnt >= 0) exit(1);

        if (cnt >= 0) l = mid;
        else r = mid - 1;
    }

    cout << l << "\n";

    cerr << "Time elapsed: " << clock() - start << " ms\n";
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:76:14: warning: variable 'check' set but not used [-Wunused-but-set-variable]
   76 |         bool check = true;
      |              ^~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29
• Subtask 5: 0 / 9