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Submission #828157

# Submission time Handle Problem Language Result Execution time Memory
828157 2023-08-17T06:07:52 Z RaresFelix Self Study (JOI22_ho_t2) C++17
0 / 100
 515 ms 10616 KB 
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
const int MN = 300001;
const ll INF = 1e18 + 71;

ll n, m, A[MN], B[MN];

bool ok(ll val) {
    if(!val) return 1;
    ll nr_sar = 0;
    for(int i = 1; i <= n; ++i) {
        if((val - 1) / A[i] + 1 <= m) {
            nr_sar += m - ((val - 1) / A[i] + 1);
        } else {
            nr_sar -= (val - m * A[i] - 1) / B[i] + 1;
        }
    }
    return (nr_sar >= 0);
}

int main() {
    cin >> n >> m;
    for(int i = 1; i <= n; ++i) cin >> A[i];
    for(int i = 1; i <= n; ++i) {
        cin >> B[i];
        if(A[i] < B[i]) A[i] = B[i];
    }
    ll st = 0, dr = INF, mij;
    while(st < dr) {
        mij = st + (dr - st + 1) / 2;
        if(ok(mij)) {
            st = mij;
        }  else dr = mij - 1;
    }
    ll mini = INF;
    for(int i = 1; i <= n; ++i) mini = min(A[i], mini);
    if(m == 1) {
        assert(mini == st);
    }
    cout << st << "\n";
    return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 5 ms 468 KB Output is correct
11 Correct 363 ms 5704 KB Output is correct
12 Correct 320 ms 5716 KB Output is correct
13 Correct 295 ms 5716 KB Output is correct
14 Runtime error 515 ms 10616 KB Execution killed with signal 6
15 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 308 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 3384 KB Output is correct
10 Correct 109 ms 2548 KB Output is correct
11 Correct 83 ms 2236 KB Output is correct
12 Correct 66 ms 2000 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Incorrect 9 ms 400 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 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 5 ms 468 KB Output is correct
11 Correct 363 ms 5704 KB Output is correct
12 Correct 320 ms 5716 KB Output is correct
13 Correct 295 ms 5716 KB Output is correct
14 Runtime error 515 ms 10616 KB Execution killed with signal 6
15 Halted 0 ms 0 KB -

Subtask #4
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 308 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 ms 308 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 164 ms 3384 KB Output is correct
10 Correct 109 ms 2548 KB Output is correct
11 Correct 83 ms 2236 KB Output is correct
12 Correct 66 ms 2000 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Incorrect 9 ms 400 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 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 300 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 5 ms 468 KB Output is correct
11 Correct 363 ms 5704 KB Output is correct
12 Correct 320 ms 5716 KB Output is correct
13 Correct 295 ms 5716 KB Output is correct
14 Runtime error 515 ms 10616 KB Execution killed with signal 6
15 Halted 0 ms 0 KB -