Submission #831130

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
831130	2023-08-19T19:16:47 Z	jasmin	Self Study (JOI22_ho_t2)	C++17	0 / 100	191 ms	10000 KB

Main

//JOI 2022 Final round
#include<bits/stdc++.h>
using namespace std;
#define int long long

const int INF=1e18;

bool possible(int x, int n, int m, vector<int>& a, vector<int>& b){
    
    int d=0;
    for(int i=0; i<n; i++){

        if(a[i] > b[i]){

            int da = (x+a[i]-1)/a[i];
            int db = 0;
            
            if(da > m){
                da = m;

                int x2 = x - (da*a[i]);
                assert(0<x2);
                db = (x2 + b[i]-1)/b[i];
            }
    
            d += da + db;
        }
        else{

            int db = (x+b[i] -1)/b[i];
            d += db;
        }

    }

    assert(0<d);
    return d <= (n*m);
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);

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

    int l=1; int r=INF;
    int ans=1;
    while(l <= r ){
        int mi=l+(r-l)/2;

        if(possible(mi, n, m, a, b)){

            ans=mi;
            l=mi+1;
        }
        else{

            r=mi-1;
        }
    }

    cout << ans << "\n";
}

Subtask #1

0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 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	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	191 ms	5012 KB	Output is correct
12	Correct	176 ms	5004 KB	Output is correct
13	Correct	131 ms	5012 KB	Output is correct
14	Runtime error	45 ms	10000 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	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	71 ms	2660 KB	Output is correct
10	Correct	48 ms	1876 KB	Output is correct
11	Correct	40 ms	1492 KB	Output is correct
12	Correct	31 ms	1280 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Runtime error	1 ms	624 KB	Execution killed with signal 6
19	Halted	0 ms	0 KB	-

Subtask #3

0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 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	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	191 ms	5012 KB	Output is correct
12	Correct	176 ms	5004 KB	Output is correct
13	Correct	131 ms	5012 KB	Output is correct
14	Runtime error	45 ms	10000 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	0 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	1 ms	212 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	256 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	71 ms	2660 KB	Output is correct
10	Correct	48 ms	1876 KB	Output is correct
11	Correct	40 ms	1492 KB	Output is correct
12	Correct	31 ms	1280 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Runtime error	1 ms	624 KB	Execution killed with signal 6
19	Halted	0 ms	0 KB	-

Subtask #5

0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 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	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	4 ms	340 KB	Output is correct
11	Correct	191 ms	5012 KB	Output is correct
12	Correct	176 ms	5004 KB	Output is correct
13	Correct	131 ms	5012 KB	Output is correct
14	Runtime error	45 ms	10000 KB	Execution killed with signal 6
15	Halted	0 ms	0 KB	-