oj.uz

Submission #534074

# Submission time Handle Problem Language Result Execution time Memory
534074 2022-03-08T00:28:26 Z balbit Self Study (JOI22_ho_t2) C++14
0 / 100
 909 ms 10716 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define int ll
#define pii pair<int, int>
#define f first
#define s second

#define REP(i,n) for (int i = 0; i<n; ++i)
#define REP1(i,n) for (int i = 1; i<=n; ++i)

#define SZ(x) (int)((x).size())
#define ALL(x) (x).begin(), (x).end()
#define pb push_back

#define MX(a,b) a = max(a,b)
#define MN(a,b) a = min(a,b)

#ifdef BALBIT
#define bug(...) cerr<<"#"<<__LINE__<<" "<<#__VA_ARGS__<<" - ", _do(__VA_ARGS__)
template <typename T> void _do( T && x) {cerr<<x<<endl;}
template <typename T, typename ...S> void _do( T && x, S && ...y) {cerr<<x<<", "; _do(y...);}
#else
#define bug(...)
#define endl '\n'
#endif // BALBIT

const int maxn = 3e5+5;

ll a[maxn], b[maxn];
int n,m;
bool can(ll X) {
    ll pool = 0;
    REP(i,n) {

        ll keep = min(X / a[i], m);
        ll need = (X - a[i] * keep + b[i]-1) / b[i];

        ll g1 = m-keep-need;

        keep = min((X+a[i]-1) / a[i], m);
        need = (max(0ll, X - a[i] * keep)
                 + b[i]-1) / b[i];
        ll g2 = m-keep-need;
        pool += max(g1, g2);
        bug(i, g1, g2);
    }

    bug(X, pool);
    return pool >= 0;
}

signed main(){
    ios::sync_with_stdio(0), cin.tie(0);

    bug(1,2);
    cin>>n>>m;

    REP(i,n) cin>>a[i];
    REP(i,n) cin>>b[i], MX(a[i], b[i]);

    ll l = 0, r = 2e18;
    while (l!=r) {
        ll mid = (l+r)/2;
        if (can(mid)) {
            l = mid+1;
        }else{
            r = mid;
        }
    }
    cout<<l-1<<endl;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 8 ms 460 KB Output is correct
11 Correct 485 ms 10716 KB Output is correct
12 Correct 488 ms 10712 KB Output is correct
13 Correct 478 ms 8772 KB Output is correct
14 Incorrect 909 ms 8784 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 251 ms 5568 KB Output is correct
10 Correct 166 ms 3804 KB Output is correct
11 Correct 124 ms 2884 KB Output is correct
12 Correct 101 ms 2408 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Incorrect 18 ms 416 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 8 ms 460 KB Output is correct
11 Correct 485 ms 10716 KB Output is correct
12 Correct 488 ms 10712 KB Output is correct
13 Correct 478 ms 8772 KB Output is correct
14 Incorrect 909 ms 8784 KB Output isn't correct
15 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 251 ms 5568 KB Output is correct
10 Correct 166 ms 3804 KB Output is correct
11 Correct 124 ms 2884 KB Output is correct
12 Correct 101 ms 2408 KB Output is correct
13 Correct 2 ms 332 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Incorrect 18 ms 416 KB Output isn't correct
19 Halted 0 ms 0 KB -

Subtask #5
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 1 ms 320 KB Output is correct
10 Correct 8 ms 460 KB Output is correct
11 Correct 485 ms 10716 KB Output is correct
12 Correct 488 ms 10712 KB Output is correct
13 Correct 478 ms 8772 KB Output is correct
14 Incorrect 909 ms 8784 KB Output isn't correct
15 Halted 0 ms 0 KB -